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Cheapest Calcium (Citrate) on iHerb

Ranked by real cost per 1,000 mg of Calcium (Citrate) — cheapest value first.

Prices updated Jul 25, 2026 · 25 products · Prices in USD

The priciest option here costs about 18.0× more per 1,000 mg of Calcium (Citrate) than the best-value pick Nutricost. For the same daily dose, choosing by cost per unit instead of sticker price can meaningfully cut your yearly spend.
#ProductDoseServingsPrice (USD)Cost per 1,000 mg
1
Nutricost, Calcium Magnesium & Zinc with Vitamin D3, 24.4 oz (684 g)
Nutricost, Calcium Magnesium & Zinc with Vitamin D3, 24.4 oz (684 g)
Nutricost
1,000 mg602.000.033View on iHerb →
2
21st Century, Calcium Citrate Maximum + D3, 120 Tablets
21st Century, Calcium Citrate Maximum + D3, 120 Tablets
21st Century
630 mg608.490.225View on iHerb →
3
Nutricost, Calcium Citrate, Unflavored, 8.9 oz (250 g)
Nutricost, Calcium Citrate, Unflavored, 8.9 oz (250 g)
Nutricost
650 mg7311.950.252View on iHerb →
4
21st Century, Calcium Citrate Petites + D3, 200 Coated Tablets
21st Century, Calcium Citrate Petites + D3, 200 Coated Tablets
21st Century
400 mg10010.990.275View on iHerb →
5
21st Century, Calcium Citrate + D3 Maximum, 75 Tablets
21st Century, Calcium Citrate + D3 Maximum, 75 Tablets
21st Century
630 mg376.490.278View on iHerb →
6
Solgar, Calcium Citrate with Vitamin D3, 240 Tablets
Solgar, Calcium Citrate with Vitamin D3, 240 Tablets
Solgar
1,000 mg6020.850.348View on iHerb →
7
Bluebonnet Nutrition, Calcium Magnesium & Zinc, Bone Health, 180 Caplets
Bluebonnet Nutrition, Calcium Magnesium & Zinc, Bone Health, 180 Caplets
Bluebonnet Nutrition
1,000 mg6021.560.359View on iHerb →
8
Nature's Truth, Calcium Citrate Plus D3, 100 Coated Caplets
Nature's Truth, Calcium Citrate Plus D3, 100 Coated Caplets
Nature's Truth
630 mg5011.460.364View on iHerb →
9
Solgar, Calcium Citrate with Vitamin D3, 120 Tablets
Solgar, Calcium Citrate with Vitamin D3, 120 Tablets
Solgar
1,000 mg3012.290.410View on iHerb →
10
Solgar, Calcium Magnesium with Vitamin D3, 300 Tablets
Solgar, Calcium Magnesium with Vitamin D3, 300 Tablets
Solgar
1,000 mg6024.710.412View on iHerb →
11
Solgar, Calcium Magnesium Citrate, 250 Tablets
Solgar, Calcium Magnesium Citrate, 250 Tablets
Solgar
1,000 mg5022.400.448View on iHerb →
12
Nutricost, Calcium Magnesium & Zinc with Vitamin D3, Peach Mango, 24 oz (672 g)
Nutricost, Calcium Magnesium & Zinc with Vitamin D3, Peach Mango, 24 oz (672 g)
Nutricost
1,000 mg6027.540.459View on iHerb →
13
Solgar, Calcium Magnesium with Vitamin D3, 150 Tablets
Solgar, Calcium Magnesium with Vitamin D3, 150 Tablets
Solgar
1,000 mg3014.240.475View on iHerb →
14
Solaray, Calcium Citrate, 120 VegCaps (250 mg per Capsule)
Solaray, Calcium Citrate, 120 VegCaps (250 mg per Capsule)
Solaray
1,000 mg3014.790.493View on iHerb →
15
The Vitamin Shoppe, Calcium Citrate Plus Vitamin D, 240 Tablets
The Vitamin Shoppe, Calcium Citrate Plus Vitamin D, 240 Tablets
The Vitamin Shoppe
1,000 mg6029.990.500View on iHerb →
16
Bluebonnet Nutrition, Calcium Citrate & Vitamin D3, 180 Caplets
Bluebonnet Nutrition, Calcium Citrate & Vitamin D3, 180 Caplets
Bluebonnet Nutrition
1,000 mg4523.160.515View on iHerb →
17
BariatricPal, Calcium Citrate + D3, 180 Coated Tablets
BariatricPal, Calcium Citrate + D3, 180 Coated Tablets
BariatricPal
600 mg6018.800.522View on iHerb →
18
BariatricPal, Calcium Citrate Plus 500, Cherry , 90 Chewable Tablets
BariatricPal, Calcium Citrate Plus 500, Cherry , 90 Chewable Tablets
BariatricPal
500 mg9024.990.555View on iHerb →
19
Nutricost, Calcium Magnesium & Zinc With Vitamin D3, Fruit Punch, 12 oz (336 g)
Nutricost, Calcium Magnesium & Zinc With Vitamin D3, Fruit Punch, 12 oz (336 g)
Nutricost
1,000 mg3016.950.565View on iHerb →
20
Nutricost, Calcium & Magnesium, Fruit Punch , 10.8 oz (303 g)
Nutricost, Calcium & Magnesium, Fruit Punch , 10.8 oz (303 g)
Nutricost
1,000 mg3016.950.565View on iHerb →
21
Nutricost, Calcium & Magnesium, Peach Mango, 10.7 oz (300 g)
Nutricost, Calcium & Magnesium, Peach Mango, 10.7 oz (300 g)
Nutricost
1,000 mg3016.950.565View on iHerb →
22
Bluebonnet Nutrition, Calcium Magnesium Potassium, 180 Caplets
Bluebonnet Nutrition, Calcium Magnesium Potassium, 180 Caplets
Bluebonnet Nutrition
1,000 mg4526.360.586View on iHerb →
23
Bluebonnet Nutrition, Calcium Citrate & Magnesium, 180 Caplets
Bluebonnet Nutrition, Calcium Citrate & Magnesium, 180 Caplets
Bluebonnet Nutrition
1,000 mg4526.360.586View on iHerb →
24
Solgar, Calcium Magnesium Citrate, 100 Tablets
Solgar, Calcium Magnesium Citrate, 100 Tablets
Solgar
1,000 mg2011.840.592View on iHerb →
25
Solgar, Liquid Calcium Magnesium Citrate with Vitamin D3, Orange-Vanilla, 16 fl oz (473 ml)
Solgar, Liquid Calcium Magnesium Citrate with Vitamin D3, Orange-Vanilla, 16 fl oz (473 ml)
Solgar
600 mg3211.420.595View on iHerb →

How we rank Calcium (Citrate)

Two supplements can list the same dose per serving yet cost very differently once you account for how many servings are in the bottle. We calculate the total nutrient in each container (dose per serving × servings per container), divide the current price by that total, and rank by the resulting cost per unit. Lower is better. Because prices are refreshed automatically, this ranking reflects today's iHerb pricing rather than a snapshot from months ago.

Cost per unit is a starting point, not the whole story — the ideal form, third-party testing, and other ingredients matter too. Always check the label and consult a healthcare professional before starting a supplement.

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Prices update automatically and may differ from iHerb at checkout. Rankings are based on cost per unit of the listed nutrient and are for informational purposes only — not medical advice. Links to iHerb are affiliate links.