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VitabioticsMinerals

Ultra Calcium, 30 tablets

£3.65 for 30 tablets at Vitabiotics. That works out at 12p per 500 mg calcium, which ranks it 3rd of the 5 calcium carbonate products we price across 4 UK retailers.

What it really costs, per 500 mg calcium12pOne 500 mg dose is our comparison unit for calcium. It is not a recommendation.
A day12p
A week85p
A month£3.65
A year£44.41

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

How we worked it out

Calcium

  • Servings: 30 ÷ 2 per serving = 15
  • In the pack: 15 × 1 g = 15 g
  • £3.65 ÷ 15 g × 500 mg = 12.2p per 500 mg calcium
  • A week 12.2p × 7 = 85p · a month × 30 = £3.65 · a year × 365 = £44.41
  • Amount per serving: stated on the label.

Vitamin D3

  • Servings: 30 ÷ 2 per serving = 15
  • In the pack: 15 × 800 IU = 12,000 IU
  • £3.65 ÷ 12,000 IU × 1,000 IU = 30.4p per 1,000 IU
  • A week 30.4p × 7 = £2.13 · a month × 30 = £9.13 · a year × 365 = £111.02
  • 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.

Cheaper 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)
This productVitabiotics · 1 g a serving · £3.65 a month · a pack lasts 30 days12pshown above

Switching to the Boots pack saves £1.15 a month at the same 500 mg dose.

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

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 productVitabiotics · 800 IU a serving · £9.13 a month · a pack lasts 12 days30pshown above

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

On the label

Calcium · Carbonate
1 g per serving (stated on the label)
Vitamin D3 · Vitamin D3
800 IU per serving (stated on the label)
Pack
30 tablets · 15 servings · 2 tablet(s) a serving
Cost per serving
24p (15 servings in the pack)
More label details
Claimed on the listing
vegetarian
Barcode
5021265246120
Sold by
Vitabiotics
What the listing says
“30 Tablets” · “Average per 2 tablets” · “Calcium ; 1000 mg ; 125”
Ingredients

Calcium Carbonate, Maltodextrin, Tablet Coating (Hydroxypropylmethylcellulose, Glycerin, Colour [Calcium Carbonate]), Bulking Agents: Microcrystalline Cellulose, Anti-Caking Agents: Magnesium Stearate & Purified Talc, Potato Starch, Vitamin D (Cholecalciferol).

From the Vitabiotics 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 9 October 2026.

Price at every check
£3.65Vitabiotics
First recorded
£3.6523 Sept
Checked on
2 dayssince 23 Sept
Pack price at each check.
  1. First checked at Vitabiotics: £3.65

Questions about this product

How much does Vitabiotics Ultra Calcium cost per 500 mg calcium?

12p per 500 mg calcium, from £3.65 for 30 tablets at Vitabiotics, checked on 9 October 2026.

Is it the cheapest calcium carbonate in the UK?

No, it is 3rd of 5. Chewable Calcium + Vitamin D Vanilla 60 Tablets at Boots works out at 8p per 500 mg calcium.

How long does one pack last?

30 days at one 500 mg dose. The pack holds 15 g in total.

How much does Vitabiotics Ultra Calcium cost per 1,000 IU?

30p per 1,000 IU, from £3.65 for 30 tablets at Vitabiotics, checked on 9 October 2026.

How long does one pack last?

12 days at one 1,000 IU dose. The pack holds 12,000 IU in total.

About Vitabiotics

Founded 1971 · London, England

Vitabiotics is a British vitamins and supplements company based in London. Professor Kartar Lalvani founded it in 1971, and his son Tej Lalvani is group chief executive.

All 100 Vitabiotics products, priced per doseVisit Vitabiotics (opens in a new tab)

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