Best Calcium Supplements
Compare 477+ Calcium supplements using our data-driven ranking system. We analyze value (cost per unit of active ingredient), potency (strength per serving), and convenience (pills per day) to help you find the best option for your needs.
Top Picks in Calcium
Best Overall
Hi Tech Pharmaceuticals, Osteo-Rx, 120 Tablets
Hi Tech Pharmaceuticals
Score: 98
Best ValueChristopher's Original Formulas, Herbal Calcium Formula, 2 fl oz (59 ml)
Christopher's Original Formulas
$0.46/serving
Highest PotencyHi Tech Pharmaceuticals, Osteo-Rx, 120 Tablets
Hi Tech Pharmaceuticals
1000MG/serving
All Calcium Products (477)
Hi Tech Pharmaceuticals
Hi Tech Pharmaceuticals, Osteo-Rx, 120 Tablets
Score: 98$0.11/srv
★4.7(73)
Solgar
Solgar, Chewable Calcium, 500 mg, 120 Wafers
Score: 98$0.20/srv
★4.7(829)
Nutricost
Nutricost, Calcium Carbonate, Unflavored, 1.1 lb (500 g)
Score: 98$0.05/srv
★4.8(189)
21st Century
21st Century, Calcium Supplement 600, 400 Tablets (600 mg per Tablet)
Score: 97$0.03/srv
★4.7(4,437)
Mason Natural
Mason Natural, Calcium, 600 mg, 100 Tablets
Score: 97$0.05/srv
★4.9(140)
21st Century
21st Century, Calcium Supplement 600, 75 Tablets (600 mg per Tablet)
Score: 97$0.07/srv
★4.7(4,433)
NOW Foods
NOW Foods, Calcium Carbonate Pure Powder, 12 oz (340 g)
Score: 97$0.05/srv
★4.8(2,416)
Nutricost
Nutricost, Calcium Citrate, Unflavored, 8.9 oz (250 g)
Score: 97$0.16/srv
★4.8(525)
Solaray
Solaray, Calcium Citrate, 240 VegCaps (250 mg per Capsule)
Score: 96$0.36/srv
★4.9(12,152)
Carlson
Carlson, Liquid Filled Cal-600, 600 mg, 250 Soft Gels
Score: 96$0.16/srv
★4.8(122)
KAL
KAL, Calcium Oyster Shell, 600 mg, 100 Tablets
Score: 96$0.12/srv
★4.6(47)
NOW Foods
NOW Foods, Calcium Citrate, Pure Powder, 8 oz (227 g)
Score: 96$0.16/srv
★4.8(6,347)
Swanson
Swanson, Calcium Carbonate, Aspartate & Citrate, 500 mg, 100 Tablets
Score: 95$0.06/srv
★4.8(391)
Carlson
Carlson, Liquid Filled Cal-600, 600 mg, 100 Soft Gels
Score: 94$0.23/srv
★4.8(122)
Nutricost
Nutricost, Calcium Citrate, Unflavored, 17.9 oz (500 g)
Score: 94$0.27/srv
★4.8(525)
KAL
KAL, Coral Calcium Powder, 8 oz (225 g)
Score: 94$0.42/srv
★4.8(40)
Carlson
Carlson, Cal-600, Liquid Filled , 600 mg, 100 + 30 Softgels
Score: 94$0.23/srv
★4.8(122)
Solaray
Solaray, Calcium Citrate, 120 VegCaps (250 mg per Capsule)
Score: 94$0.49/srv
★4.9(12,152)
Source Naturals
Source Naturals, Coral Calcium Powder, 2 oz (56.7 g)
Score: 93$0.13/srv
★4.8(1,194)
Swanson
Swanson, Calcium with Vitamins D & K, 100 Capsules
Score: 93$0.06/srv
★4.8(471)
Showing 20 of 477 products