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BootsMinerals

Calcium, Magnesium + Vitamin D 180 Tablets

£10.00 for 180 tablets at Boots. It carries more than one active ingredient, so it is not ranked against single-ingredient products. Each price below counts one ingredient only.

What it really costs, per 500 mg calcium7pOne 500 mg dose is our comparison unit for calcium. It is not a recommendation.
A day7p
A week49p
A month£2.08
A year£25.35

At one 500 mg dose a day, this pack lasts 5 months. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Calcium

  • Servings: 180 ÷ 2 per serving = 90
  • In the pack: 90 × 800 mg = 72 g
  • £10.00 ÷ 72 g × 500 mg = 6.94p per 500 mg calcium
  • A week 6.94p × 7 = 49p · a month × 30 = £2.08 · a year × 365 = £25.35
  • Amount per serving: stated on the label.

Magnesium

  • Servings: 180 ÷ 2 per serving = 90
  • In the pack: 90 × 375 mg = 33.8 g
  • £10.00 ÷ 33.8 g × 100 mg = 2.96p per 100 mg magnesium
  • A week 2.96p × 7 = 21p · a month × 30 = 89p · a year × 365 = £10.81
  • Amount per serving: stated on the label.

Vitamin D3

  • Servings: 180 ÷ 2 per serving = 90
  • In the pack: 90 × 400 IU = 36,000 IU
  • £10.00 ÷ 36,000 IU × 1,000 IU = 27.8p per 1,000 IU
  • A week 27.8p × 7 = £1.94 · a month × 30 = £8.33 · a year × 365 = £101.39
  • Amount per serving: stated on the label.

The standard dose is a comparison unit, not a recommendation. Always confirm the price on the retailer's site. How we compare everything.

How it compares: calcium carbonate

All 5, ranked →
Chewable Calcium + Vitamin D Vanilla 60 TabletsCheapest per 500 mg calciumBoots · 800 mg a serving · £2.50 a month · a pack lasts 48 days8p£4.00View at Boots (opens in a new tab)
Chewable Calcium & Vitamin D3 TabletsSimply Supplements · 800 mg a serving · £3.12 a month · a pack lasts 3 months10p£9.99View at Simply Supplements (opens in a new tab)
Ultra CalciumVitabiotics · 1 g a serving · £3.65 a month · a pack lasts 30 days12p£3.65View at Vitabiotics (opens in a new tab)
This productBoots · 800 mg a serving · £2.08 a month · a pack lasts 5 months7pshown above

Ranked purely by price per 500 mg calcium. 86 combination products also contain calcium.

How it compares: magnesium oxide

All 9, ranked →
Magnesium 375mg 180 Tablets (3 month supply)Cheapest per 100 mg magnesiumBoots · 375 mg a serving · £1.14 a month · a pack lasts 11 months4p£12.85View at Boots (opens in a new tab)
Magnesium 375mg 60 Tablets (1 Month Supply)Boots · 375 mg a serving · £1.41 a month · a pack lasts 4 months5p£5.30View at Boots (opens in a new tab)
Magnesium Tablets 200mgSimply Supplements · 100 mg a serving · £1.61 a month · a pack lasts 12 months5p£19.29View at Simply Supplements (opens in a new tab)
This productBoots · 375 mg a serving · 89p a month · a pack lasts 11 months3pshown above

Ranked purely by price per 100 mg magnesium. 91 combination products also contain magnesium.

How it compares: vitamin D3

All 207, ranked →
WeightWorldHigh-Strength Vitamin D3 TabletsCheapest per 1,000 IUWeightWorld · 4,000 IU a serving · 17p a month · a pack lasts 4.4 years1p£8.99View at WeightWorld (opens in a new tab)
ZipVitVitamin D3 4000iuZipVit · 4,000 IU a serving · 17p a month · a pack lasts 4 years1p£8.49View at ZipVit (opens in a new tab)
WeightWorldVitamin D3 + K2 (MK7) TabletsWeightWorld · 4,000 IU a serving · 21p a month · a pack lasts 4 years1p£9.99View at WeightWorld (opens in a new tab)
This productBoots · 400 IU a serving · £8.33 a month · a pack lasts 36 days28pshown above

Ranked purely by price per 1,000 IU. 439 combination products also contain vitamin D3.

On the label

Calcium · Carbonate
800 mg per serving (stated on the label)
Magnesium · Oxide
375 mg per serving (stated on the label)
Pack
180 tablets · 90 servings · 2 tablet(s) a serving
Cost per serving
11p (90 servings in the pack)
More label details
Vitamin D3 · Vitamin D3
400 IU per serving (stated on the label)
Claimed on the listing
vegetarian
Sold by
Boots
What the listing says
“180 Tablets” · “Take 2 tablets a day” · “Calcium ; 800 mg ; 100”
Ingredients

Calcium Carbonate, Magnesium Oxide, Cellulose, Maize Starch, Colour (Titanium Dioxide), Cross-Linked Sodium Carboxymethylcellulose, Hydroxypropylmethylcellulose, Polyvinyl Alcohol, Magnesium Stearate, Polyethylene Glycol, Polydextrose, Talc, Vitamin D3 (Cholecalciferol)

From the Boots listing. Check the pack itself if you have an allergy: labels mark allergens in bold.

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One 500 mg dose is our comparison unit, not a recommendation.

Price history

No price change since 23 September 2026. Checked on 2 days, most recently 15 October 2026.

Price at every check
£10.00Boots
First recorded
£10.0023 Sept
Checked on
2 dayssince 23 Sept
Pack price at each check.
  1. First checked at Boots: £10.00

Questions about this product

How much does Boots Calcium, Magnesium + Vitamin D 180 Tablets cost per 500 mg calcium?

7p per 500 mg calcium, from £10.00 for 180 tablets at Boots, checked on 15 October 2026.

How long does one pack last?

5 months at one 500 mg dose. The pack holds 72 g in total.

How much does Boots Calcium, Magnesium + Vitamin D 180 Tablets cost per 100 mg magnesium?

3p per 100 mg magnesium, from £10.00 for 180 tablets at Boots, checked on 15 October 2026.

How long does one pack last?

11 months at one 100 mg dose. The pack holds 33.8 g in total.

How much does Boots Calcium, Magnesium + Vitamin D 180 Tablets cost per 1,000 IU?

28p per 1,000 IU, from £10.00 for 180 tablets at Boots, checked on 15 October 2026.

How long does one pack last?

36 days at one 1,000 IU dose. The pack holds 36,000 IU in total.

About Boots

Founded 1849 · Nottingham, England · Part of The Boots Group

Boots is a pharmacy-led health and beauty retailer founded in 1849, when John Boot opened a herbalist shop in Nottingham, where it is still based. com. It belongs to The Boots Group, owned since August 2025 by the private equity firm Sycamore Partners and Stefano Pessina's family.

All 96 Boots products, priced per doseVisit Boots (opens in a new tab)

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