Calcium Intake Calculator

Check calcium intake vs RDA by age and sex — see mg/day, % of RDA and food sources.

Calcium Intake Calculator

Check calcium intake vs RDA by age and sex — see mg/day, % of RDA and food sources.

Age

Sex

Daily calcium (mg)

Enter values above and click Calculate — results will appear here with the formula explained.

RDA: 1000mg 19-50, 1200mg 51+ women/70+ men; % = intake/RDA*100

How does this work?

RDA for calcium is 1000mg 19-50, 1200mg for women 51+ and men 70+. This checks intake vs RDA.

Dairy, fortified plant milk, sardines are sources. Vitamin D needed for absorption.

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Disclaimer: Results are estimates for informational purposes only and do not constitute professional medical advice.

Quick Answer

Calcium Intake Calculator: Check calcium intake vs RDA by age and sex — see mg/day, % of RDA and food sources. Formula: RDA: 1000mg 19-50, 1200mg 51+ women/70+ men. Example: At 30 female, 800mg intake: RDA 1000mg, 80% — add 300mg via yogurt to reach 100%.

How to Use This Calculator

1Enter age, sex and daily calcium mg.
2Calculate to see % of RDA.
3If low, add dairy or fortified foods.

Formula Used

RDA: 1000mg 19-50, 1200mg 51+ women/70+ men; % = intake/RDA*100

RDA for calcium is 1000mg 19-50, 1200mg for women 51+ and men 70+. This checks intake vs RDA.

Dairy, fortified plant milk, sardines are sources. Vitamin D needed for absorption.

AdSense ready — add NEXT_PUBLIC_GOOGLE_ADSENSE_PUBLISHER_ID

728×90 — AdSense

Worked Example

At 30 female, 800mg intake: RDA 1000mg, 80% — add 300mg via yogurt to reach 100%.

AdSense ready — add NEXT_PUBLIC_GOOGLE_ADSENSE_PUBLISHER_ID

728×90 — AdSense

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Frequently Asked Questions

QWhat is RDA?

1000mg 19-50, 1200mg 51+ women/70+ men.

QToo much?

Upper limit 2500mg. Over may increase kidney stone risk.

QSupplements?

500mg at a time absorbed best. Split doses.

Calcium Intake Calculator

Check calcium intake vs RDA by age and sex — see mg/day, % of RDA and food sources.