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Home › Minerals

Calcium

Also called calcium carbonate, calcium citrate, osteocare.

Cheapest other forms of calcium today: 3p per 500 mg calcium at Simply Supplements, of 23 products at 9 shops. Checked 29 October 2026.

The best price per 500 mg calcium and per month, form by form, across 11 UK retailers, and where to buy it cheapest. A unit for comparing, not advice.

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Comparing calcium

We count the calcium a label states per serving, whatever the pack size or the serving size, so every product sits on one scale. Calcium comes as carbonate, citrate and other forms, and each form has its own table, because someone buying one would not usually take another as a like-for-like substitute. A product with one other ingredient is ranked here with an “also contains” note; products that combine calcium with several others are listed separately, because their price buys more than calcium. 500 mg is our unit for comparing prices, not a dose to take: the label’s directions and a pharmacist decide that.

Other forms of calcium

Most prices last checked: ; an older price shows its own date. Ranked purely by price per 500 mg calcium — a comparison unit, not a recommendation. We earn commission when you buy through these links; it never affects the order.

2 of the 10 cheapest links on this page earn us nothing; the order is price alone. Shop by shop

Priced per 500 mg; powders are often compared per gram.

Compared at 500 mg. Enter the amount you take to see your own costs.

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Other forms of calcium: products ranked by price per 500 mg calcium
RankProductPer 500 mg calciumPer monthLastsBuyHow it is worked out
1
Cheapest per doseCalcium 1000mg & Vitamin D3 400iu Tablets180 tablets · 180 servings · 1 g a servingDetails and price historyAdd to my stackalso contains vitamin d3
3p94p12 months£11.29View at Simply Supplements (opens in a new tab)Free delivery from £20.00, otherwise £1.99 · 2–3 working days after dispatchAmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 180 ÷ 1 per serving = 180
  • In the pack: 180 × 1 g = 180 g
  • £11.29 ÷ 180 g × 500 mg = 3.14p per 500 mg
  • Amount per serving: stated on the label.
  • Also contains: vitamin d3. The price counts the calcium only.
What the retailer's listing says
  • amount per serving “Calcium 1000mg”

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2
Best value under 6 months' supplyCalcium & Magnesium Tablets2 tablets a day for 500 mgMyprotein · 270 tablets · 90 servings · 800 mg a servingDetails and price historyAdd to my stackalso contains magnesiumclaimed: vegan
8p£2.295 months£10.99View at Myprotein (opens in a new tab)Free delivery over £55.00, otherwise £4.49 · 2–3 working daysAmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 270 ÷ 3 per serving = 90
  • In the pack: 90 × 800 mg = 72 g
  • £10.99 ÷ 72 g × 500 mg = 7.63p per 500 mg
  • Amount per serving: stated on the label.
  • Also contains: magnesium. The price counts the calcium only.
What the retailer's listing says
  • pack units “270Tablets”
  • units per serving “Consume 3 tablets daily”
  • amount per serving “Calcium ; 800mg ; 100”

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3
Calcium 400mg with Magnesium 200mg2 tablets a day for 500 mgZipVit · 360 tablets · 360 servings · 400 mg a servingDetails and price historyAdd to my stackalso contains magnesium
8p£2.299 months£21.99View at ZipVit (opens in a new tab)Price checked Free UK delivery · 2–4 working daysAmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 360 ÷ 1 per serving = 360
  • In the pack: 360 × 400 mg = 144 g
  • £21.99 ÷ 144 g × 500 mg = 7.64p per 500 mg
  • Amount per serving: stated on the label.
  • Also contains: magnesium. The price counts the calcium only.
What the retailer's listing says
  • pack units “200mg - 360”
  • units per serving “Take 1 tablet daily”
  • amount per serving “Calcium ; 400mg ; 50%”

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4
Calcium 400mg with Magnesium 200mg2 tablets a day for 500 mgZipVit · 120 tablets · 120 servings · 400 mg a servingDetails and price historyAdd to my stackalso contains magnesium
9p£2.813 months£8.99View at ZipVit (opens in a new tab)Price checked Free UK delivery · 2–4 working daysAmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 120 ÷ 1 per serving = 120
  • In the pack: 120 × 400 mg = 48 g
  • £8.99 ÷ 48 g × 500 mg = 9.36p per 500 mg
  • Amount per serving: stated on the label.
  • Also contains: magnesium. The price counts the calcium only.
What the retailer's listing says
  • pack units “200mg - 120”
  • units per serving “Take 1 tablet daily”
  • amount per serving “Calcium ; 400mg ; 50%”

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5
Calcium 400mg & Magnesium 200mg Tablets2 tablets a day for 500 mg180 tablets · 180 servings · 400 mg a servingDetails and price historyAdd to my stackalso contains magnesium
10p£2.915 months£13.99View at Simply Supplements (opens in a new tab)Free delivery from £20.00, otherwise £1.99 · 2–3 working days after dispatchAmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 180 ÷ 1 per serving = 180
  • In the pack: 180 × 400 mg = 72 g
  • £13.99 ÷ 72 g × 500 mg = 9.72p per 500 mg
  • Amount per serving: stated on the label.
  • Also contains: magnesium. The price counts the calcium only.
What the retailer's listing says
  • amount per serving “Calcium 400mg”
  • confirmed values “confirmed from the retailer's own product page, not this listing's text: pack units 180; pack unit type tablet; units per serving 1.0”

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6
Calcium & Magnesium Tablets2 tablets a day for 500 mgMyprotein · 90 tablets · 30 servings · 800 mg a servingDetails and price historyAdd to my stackalso contains magnesiumclaimed: vegan
10p£3.1248 days£4.99View at Myprotein (opens in a new tab)Free delivery over £55.00, otherwise £4.49 · 2–3 working daysAmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 90 ÷ 3 per serving = 30
  • In the pack: 30 × 800 mg = 24 g
  • £4.99 ÷ 24 g × 500 mg = 10.4p per 500 mg
  • Amount per serving: stated on the label.
  • Also contains: magnesium. The price counts the calcium only.
What the retailer's listing says
  • pack units “90Tablets”
  • units per serving “Consume 3 tablets daily”
  • amount per serving “Calcium ; 800mg ; 100”

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7
Chewable Calcium & Magnesium Tablets2 tablets a day for 500 mg120 tablets · 120 servings · 400 mg a servingDetails and price historyAdd to my stackTropicalalso contains magnesium
13p£3.843 months£12.29View at Simply Supplements (opens in a new tab)Free delivery from £20.00, otherwise £1.99 · 2–3 working days after dispatchAmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 120 ÷ 1 per serving = 120
  • In the pack: 120 × 400 mg = 48 g
  • £12.29 ÷ 48 g × 500 mg = 12.8p per 500 mg
  • Amount per serving: stated on the label.
  • Also contains: magnesium. The price counts the calcium only.
What the retailer's listing says
  • amount per serving “chewable Calcium 400mg and Magnesium 200mg tablets”
  • confirmed values “confirmed from the retailer's own product page, not this listing's text: pack units 120; pack unit type tablet; units per serving 1.0”

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8
Calcium2 capsules a day for 500 mg60 capsules · 30 servings · 608 mg a servingDetails and price historyAdd to my stackclaimed: vegan
27p£8.2236 days£9.99View at Together Health (opens in a new tab)Free UK delivery over £11.00, otherwise £1.00 · usually the next working day, up to 5 working daysAmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 60 ÷ 2 per serving = 30
  • In the pack: 30 × 608 mg = 18.2 g
  • £9.99 ÷ 18.2 g × 500 mg = 27.4p per 500 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “2 capsules provide on average (NRV)”
  • units per serving “2 capsules provide on average (NRV)”
  • amount per serving “Calcium 608 mg 76%”
  • confirmed values “confirmed from the retailer's own product page, not this listing's text: form id other; amount per serving 608.0; amount unit mg; amount refers to elemental; pack units 60; pack unit type capsule; units per serving 2.0”

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9
Vitamin C powder as Calcium Ascorbate - 250 Powder by Nature's Best - Powdered Vitamin C to Support Immune System250 g · 250 servings · 103 mg a servingDetails and price historyAdd to my stackalso contains vitamin cclaimed: veganclaimed: vegetarian
31p£9.2952 days£15.95View at Lamberts Healthcare (Nature's Best) (opens in a new tab)Free UK delivery over £20.00, otherwise £2.50 · usually 3–4 working days, up to 10 at busy timesAmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 250 ÷ 1 per serving = 250
  • In the pack: 250 × 103 mg = 25.8 g
  • £15.95 ÷ 25.8 g × 500 mg = 31p per 500 mg
  • Amount per serving: stated on the label.
  • Also contains: vitamin c. The price counts the calcium only.
What the retailer's listing says
  • pack units “Specifications: 250 Powder”
  • amount per serving “plus 100mg of calcium”
  • confirmed values “confirmed from the retailer's own product page, not this listing's text: form id buffered; amount per serving 897.0; amount unit mg; amount refers to elemental; units per serving 1.0; pack units 250; pack unit type gram; calcium.amount per serving 103.0; calcium.amount unit mg; calcium.amount refers to elemental”

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10
Calcium (formerly DiCalcium Malate)2 capsules a day for 500 mgHealf · 120 capsules · 120 servings · 250 mg a servingDetails and price historyAdd to my stackHPMC capsule, the listing says
37p£11.052 months£22.09View at Healf (opens in a new tab)Free UK delivery over £50.00, otherwise £3.99AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 120 ÷ 1 per serving = 120
  • In the pack: 120 × 250 mg = 30 g
  • £22.09 ÷ 30 g × 500 mg = 36.8p per 500 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “120 caps”
  • servings stated “Servings Per Container: 120”
  • units per serving “Serving Size: 1 Capsule”
  • amount per serving “Calcium (as DimaCal Dicalcium Malate) ; 250 mg”

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11
True Food® Icelandic Seaweed Calcium2 capsules a day for 500 mgHigher Nature · 60 capsules · 30 servings · 520 mg a servingDetails and price historyAdd to my stack
38p£11.4931 days£11.95View at Higher Nature (opens in a new tab)Price checked Free UK delivery over £40.00, otherwise £3.90 · 2 working days, a few up to 3AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 60 ÷ 2 per serving = 30
  • In the pack: 30 × 520 mg = 15.6 g
  • £11.95 ÷ 15.6 g × 500 mg = 38.3p per 500 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “60 Capsules”
  • units per serving “Two capsules typically provide”
  • amount per serving “Calcium (from Icelandic seaweed) ; 520mg”

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12
True Food Icelandic Seaweed Calcium2 capsules a day for 500 mgHigher Nature · W-Wellness · 60 capsules · 60 servings · 260 mg a servingDetails and price historyAdd to my stack
38p£11.4931 days£11.95View at W-Wellness (opens in a new tab)Free UK delivery from £50.00, otherwise £3.99 · 2–4 working days to dispatchAmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 60 ÷ 1 per serving = 60
  • In the pack: 60 × 260 mg = 15.6 g
  • £11.95 ÷ 15.6 g × 500 mg = 38.3p per 500 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “Contains: 60 capsules”
  • amount per serving “Each capsule provides 260mg of calcium”

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13
Calcium & Vitamin D3 Gummies for Kids4 gummies a day for 500 mgWeightWorld · 45 servings · 320 mg a servingDetails and price historyAdd to my stackalso contains vitamin d3
57p£17.1829 days£16.49View at WeightWorld (opens in a new tab)Price checked Free delivery over £35.00, otherwise £1.99 · 2–3 working daysAmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 45 (as stated on the label)
  • In the pack: 45 × 320 mg = 14.4 g
  • £16.49 ÷ 14.4 g × 500 mg = 57.3p per 500 mg
  • Amount per serving: stated on the label.
  • Also contains: vitamin d3. The price counts the calcium only.
What the retailer's listing says
  • servings stated “Servings per Container: 45”
  • units per serving “Serving Size: 2 Gummies”
  • amount per serving “Calcium (as Tricalcium Phosphate) ; 320 mg”

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14
Calcium (MCHA)2 capsules a day for 500 mgHealf · 180 capsules · 180 servings · 250 mg a servingDetails and price historyAdd to my stackclaimed: vegetarian
72p£21.503 months£64.50View at Healf (opens in a new tab)Free UK delivery over £50.00, otherwise £3.99AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 180 ÷ 1 per serving = 180
  • In the pack: 180 × 250 mg = 45 g
  • £64.50 ÷ 45 g × 500 mg = 71.7p per 500 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “180 caps”
  • servings stated “Servings Per Container: 180”
  • units per serving “Serving Size: 1 capsule”
  • amount per serving “(Bovine) ; 250 mg ; 31%”

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15
Calcium-Magnesium Malate5 capsules a day for 500 mgHealf · 240 capsules · 240 servings · 100 mg a servingDetails and price historyAdd to my stackalso contains magnesiumHPMC capsule, the listing says
73p£21.8648 days£34.97View at Healf (opens in a new tab)Free UK delivery over £50.00, otherwise £3.99AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 240 ÷ 1 per serving = 240
  • In the pack: 240 × 100 mg = 24 g
  • £34.97 ÷ 24 g × 500 mg = 72.9p per 500 mg
  • Amount per serving: stated on the label.
  • Also contains: magnesium. The price counts the calcium only.
What the retailer's listing says
  • pack units “240 caps”
  • servings stated “Servings Per Container: 240”
  • units per serving “Serving Size: 1 Capsule”
  • amount per serving “Calcium (as Calcium Malate) ; 100 mg”

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16
Organic Wholefood Calcium3 capsules a day for 500 mgW-Wellness · 60 capsules · 60 servings · 200 mg a servingDetails and price historyAdd to my stackTesting claimed on labelclaimed: veganclaimed: vegetarian
75p£22.4924 days£17.99View at W-Wellness (opens in a new tab)Free UK delivery from £50.00, otherwise £3.99 · 2–4 working days to dispatchAmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 60 ÷ 1 per serving = 60
  • In the pack: 60 × 200 mg = 12 g
  • £17.99 ÷ 12 g × 500 mg = 75p per 500 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • testing claim “certified organic by the Soil Association”
  • pack units “Contains: 60 capsules”
  • amount per serving “provides 200mg of elemental calcium per capsule”

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17
Calcium2 capsules a day for 500 mgHealf · 60 servings · 250 mg a servingDetails and price historyAdd to my stackHPMC capsule, the listing says
77p£22.9930 days£22.99View at Healf (opens in a new tab)Free UK delivery over £50.00, otherwise £3.99AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 60 (as stated on the label)
  • In the pack: 60 × 250 mg = 15 g
  • £22.99 ÷ 15 g × 500 mg = 76.6p per 500 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • servings stated “Servings Per Container: 60”
  • units per serving “Serving Size: 1 Capsule”
  • amount per serving “Calcium (as Dicalcium Malate) ; 250 mg ; 31%”

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18
Calcium (MCHA)2 capsules a day for 500 mgW-Wellness · 180 capsules · 60 servings · 750 mg a servingDetails and price historyAdd to my stackalso contains phosphorus (as mchc)claimed: vegetarianHPMC capsule, the listing says
82p£24.623 months£73.85View at W-Wellness (opens in a new tab)Free UK delivery from £50.00, otherwise £3.99 · 2–4 working days to dispatchAmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 180 ÷ 3 per serving = 60
  • In the pack: 60 × 750 mg = 45 g
  • £73.85 ÷ 45 g × 500 mg = 82.1p per 500 mg
  • Amount per serving: stated on the label.
  • Also contains: phosphorus (as mchc). The price counts the calcium only.
What the retailer's listing says
  • pack units “180 capsules”
  • servings stated “Servings per container 60”
  • units per serving “Serving size 3 capsules”
  • amount per serving “Calcium (as MCHC) (bovine) ; 750 mg”

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19
Calcium & Magnesium4 capsules a day for 500 mgHealf · 90 capsules · 90 servings · 165 mg a servingDetails and price historyAdd to my stackalso contains magnesiumHPMC capsule, the listing says
82p£24.7330 days£24.48View at Healf (opens in a new tab)Free UK delivery over £50.00, otherwise £3.99AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 90 ÷ 1 per serving = 90
  • In the pack: 90 × 165 mg = 14.9 g
  • £24.48 ÷ 14.9 g × 500 mg = 82.4p per 500 mg
  • Amount per serving: stated on the label.
  • Also contains: magnesium. The price counts the calcium only.
What the retailer's listing says
  • pack units “90 caps”
  • units per serving “Each capsule typically contains”
  • amount per serving “Natural Marine Calcium from Lithothamnion Calcareum seaweed ; 165mg”

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20
Calcium & Magnesium4 capsules a day for 500 mgW-Wellness · 90 capsules · 90 servings · 165 mg a servingDetails and price historyAdd to my stackalso contains magnesiumHPMC capsule, the listing says
84p£25.2430 days£24.99View at W-Wellness (opens in a new tab)Free UK delivery from £50.00, otherwise £3.99 · 2–4 working days to dispatchAmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 90 ÷ 1 per serving = 90
  • In the pack: 90 × 165 mg = 14.9 g
  • £24.99 ÷ 14.9 g × 500 mg = 84.1p per 500 mg
  • Amount per serving: stated on the label.
  • Also contains: magnesium. The price counts the calcium only.
What the retailer's listing says
  • pack units “Contains: 90 capsules”
  • units per serving “EACH CAPSULE TYPICALLY CONTAINS”
  • amount per serving “Natural Marine Calcium from Lithothamnion Calcareum seaweed 165mg”

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21
Calcium Magnesium (citrate/malate)7 capsules a day for 500 mgHealf · 180 capsules · 60 servings · 225 mg a servingDetails and price historyAdd to my stackalso contains magnesiumclaimed: vegetarian
£1.20£35.9827 days£32.38View at Healf (opens in a new tab)Free UK delivery over £50.00, otherwise £3.99AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 180 ÷ 3 per serving = 60
  • In the pack: 60 × 225 mg = 13.5 g
  • £32.38 ÷ 13.5 g × 500 mg = £1.20 per 500 mg
  • Amount per serving: stated on the label.
  • Also contains: magnesium. The price counts the calcium only.
What the retailer's listing says
  • pack units “180 capsules”
  • servings stated “Servings Per Container: 60”
  • units per serving “Serving Size: 3 capsules”
  • amount per serving “Calcium (as Calcium Citrate/Malate) ; 225 mg”

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22
Ionic Calcium Liquid ConcentrateHealf · 50 ml · 25 servings · 240 mg a servingDetails and price historyAdd to my stack
£1.63£48.7512 days£19.50View at Healf (opens in a new tab)Free UK delivery over £50.00, otherwise £3.99AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 50 ÷ 2 per serving = 25
  • In the pack: 25 × 240 mg = 6 g
  • £19.50 ÷ 6 g × 500 mg = £1.63 per 500 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “50ml”
  • servings stated “Servings in bottle: 25”
  • units per serving “Serving size: 30 drops (2ml)”
  • amount per serving “Calcium ; 240mg ; 30%”

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23
Ionic Calcium Liquid ConcentrateMyprotein · 50 ml · 25 servings · 240 mg a servingDetails and price historyAdd to my stack
£1.67£50.0012 days£20.00View at Myprotein (opens in a new tab)Free delivery over £55.00, otherwise £4.49 · 2–3 working daysAmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 50 ÷ 2 per serving = 25
  • In the pack: 25 × 240 mg = 6 g
  • £20.00 ÷ 6 g × 500 mg = £1.67 per 500 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “50ml”
  • servings stated “Servings per bottle: 25”
  • units per serving “30 drops (2ml)”
  • amount per serving “Calcium ; 240mg ; 30%”

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24
Designs for HealthCalcium D-Glucarate7 capsules a day for 500 mgHealf · 60 capsules · 30 servings · 150 mg a servingDetails and price historyAdd to my stack
£3.36£100.809 days£30.24View at Healf (opens in a new tab)Free UK delivery over £50.00, otherwise £3.99AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 60 ÷ 2 per serving = 30
  • In the pack: 30 × 150 mg = 4.5 g
  • £30.24 ÷ 4.5 g × 500 mg = £3.36 per 500 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “60 capsules”
  • servings stated “Servings Per Container: 30”
  • units per serving “Serving Size: 2 Capsules”
  • amount per serving “Calcium (from Calcium D-Glucarate USP 1.2 g) ; 150 mg”
  • compound mass “Calcium D-Glucarate USP 1.2 g”

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25
holi (mane)Agent Nateur · Healf · 300 g · 30 servings · 200 mg a servingDetails and price historyAdd to my stackUnflavouredalso contains collagen
£6.08£182.5012 days£73.00View at Healf (opens in a new tab)Free UK delivery over £50.00, otherwise £3.99AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 300 ÷ 10 per serving = 30
  • In the pack: 30 × 200 mg = 6 g
  • £73.00 ÷ 6 g × 500 mg = £6.08 per 500 mg
  • Amount per serving: stated on the label.
  • Also contains: collagen. The price counts the calcium only.
What the retailer's listing says
  • pack units “300g”
  • servings stated “Servings Per Container: 30”
  • units per serving “Serving Size: 10 grams”
  • amount per serving “Calcium ; 200 mg”

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Price alert

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By shop

Each shop's calcium products, with where its cheapest sits in the market.

How we work out these prices

We count the elemental calcium a product provides, not the weight of the whole compound it comes in. If a label states the calcium amount, we use it. If it only gives the compound's weight, we estimate using a published conversion factor and mark the figure “estimated”. If we cannot tell which the number means, the product is left out until it can be confirmed.

Questions

Where can I buy calcium cheapest in the UK?

On 29 October 2026, the cheapest calcium per dose from a UK seller was Calcium 1000mg & Vitamin D3 400iu Tablets at Simply Supplements (3p per 500 mg calcium, 94p a month). Then Calcium & Magnesium Tablets at Myprotein (8p per 500 mg calcium, £2.29 a month) and Calcium 400mg with Magnesium 200mg at ZipVit (8p per 500 mg calcium, £2.29 a month). That is by price per 500 mg calcium, across 9 UK retailers and 25 products, with every price checked daily; the table above shows the working for each.

What is the best price per 500 mg calcium of calcium today?

3p per 500 mg calcium, for Calcium 1000mg & Vitamin D3 400iu Tablets at Simply Supplements (3p per 500 mg calcium, 94p a month), on 29 October 2026. The dearest of the 25 products we price is £6.08 per 500 mg calcium, and the middle one is 57p.

How much does calcium cost per month?

At one 500 mg dose a day, the cheapest works out at 94p a month, for Calcium 1000mg & Vitamin D3 400iu Tablets at Simply Supplements, on 29 October 2026. Across the 25 products we price it runs from 94p to £182.50 a month. A month is 30 days, and the figure follows the dose you enter in the table.

Which calcium form is cheapest per dose?

On 29 October 2026: other forms from 3p per 500 mg calcium (Simply Supplements), carbonate from 8p per 500 mg calcium (Boots) and citrate from 17p per 500 mg calcium (Healf). The forms differ in what they contain, so this is a fact about price and not a recommendation of one over another.

Do bigger calcium packs cost less per dose?

Mostly, yes: on 29 October 2026, the 2 packs that last more than six months average 5p per 500 mg calcium, against 96p for the 23 that last six months or less. The table marks the cheapest pack that lasts six months or less as the best value for anyone who would rather not buy a year at once.

How long does a pack of calcium last?

At one 500 mg dose a day, the packs we price last from 9 days to 12 months; the middle one lasts 36 days. Each row says how long its pack lasts at the dose you enter.

What does “per 500 mg calcium” mean?

It is the unit we use to put every product on the same scale: the price of 500 mg of elemental calcium, whatever the pack size or serving size. It is a comparison unit, not a recommendation of how much to take. Use the “Your daily dose” box to see costs at the amount you actually take.

Why are the calcium forms in separate tables?

We only rank products against others of the same form, because someone buying one form would not usually see another as a like-for-like substitute on price. Forms we compare separately: Carbonate; Citrate; Other forms.

Why is a product I have seen in the shops missing?

If a retailer’s listing does not let us confirm the amount per serving, the pack size or the form, we do not guess and we do not show the product. It appears once its label has been read and confirmed.

How up to date are the prices?

Prices on this page were last checked on 29 October 2026. Every table shows the date its prices were checked. Always confirm the price on the retailer’s site before buying.

Do retailers pay to appear higher?

No. We earn a commission when you buy through our links, but the order is set only by price per dose. No retailer or brand can pay for position.