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🦴 Calcium
21st Century, Calcium Plus Vitamin D3, 500mg, 400 Tabs
Cost per serving
$0.02
Cheap·−90%High absorption
$7.72last seen · confirm on Amazon
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See the offer Calcium cost per dose
Currently from $0.019 per serving across our tracked stores. Same molecule, dramatically different per-dose pricing — sorted bottom-up.
Prices checked Jun 24, 2026
See also: best Calcium deals · Calcium basics
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🦴 Calcium
Doctor's Best Natural Vitamin K2 MK7 Supplement for Men…
Cost per serving
$0.03
Cheap·−86%$0.20last seen · confirm on Amazon
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🦴 Calcium
21st Century, Calcium Supplement, 600 mg, 400 Tabs
Cost per serving
$0.03
Cheap·−85%$12.00last seen · confirm on Amazon
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🦴 Calcium
Now Foods, Calcium-Magnesium, 500/250 mg, 250 Tabs
Cost per serving
$0.05
Cheap·−75%$12.60last seen · confirm on Amazon
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🦴 Calcium
21st Century, Calcium Plus Vitamin D3, 500mg, 90 Tabs
Cost per serving
$0.06
Avg·−73%High absorption
$4.95last seen · confirm on Amazon
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🦴 Calcium
Major Pharmaceuticals, Oyster Shell Calcium with Vitamin D3…
Cost per serving
$0.06
Avg·−72%High absorption
$3.32last seen · confirm on Amazon
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🦴 Calcium
21st Century, Calcium Supplement, 600 mg, 75 Tabs
Cost per serving
$0.06
Avg·−70%$4.50last seen · confirm on Amazon
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🦴 Calcium
Nature's Blend, Calcium Oyster Shell, 500 mg, 200 Tabs
Cost per serving
$0.07
Avg·−67%$13.34last seen · confirm on Amazon
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🦴 Calcium
Source Naturals, Triple Boron, 3 mg, Advanced, With Calcium…
Cost per serving
$0.08
Avg·−62%$9.09last seen · confirm on Amazon
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See the offer Frequently asked
What is the cheapest Calcium per dose?+
21st Century, Calcium Plus Vitamin D3, 500mg, 400 Tabs — $0.02 per serving ($7.72 for 400 servings), the lowest cost-per-dose calcium in our Amazon US catalog as of June 2026.
What is the typical cost per dose for Calcium?+
About $0.10 per serving across 125 tracked calcium products, ranging from $0.05 for the best deals to $0.16 for premium options.
Is the cheapest Calcium the best one to buy?+
Not always. The cheapest is sometimes cheaper because of the form — magnesium oxide costs less than glycinate per gram but absorbs at a fraction of the rate. Weigh cost-per-dose against form bioavailability and third-party testing, not price alone.