Calcium Intake Calculator

Calculate your recommended daily calcium intake for bone health based on age, gender, and lifestyle factors.

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Important Health Disclaimer

This calculator provides general health information based on standard medical formulas and WHO guidelines. Results are for informational and educational purposes only and should not be considered as professional medical advice, diagnosis, or treatment recommendations.

For health concerns, medical conditions, fitness plans, or dietary decisions, please consult with qualified healthcare professionals, licensed physicians, registered dietitians, or certified fitness trainers who can evaluate your individual health status and medical history.

Individual health needs vary significantly. These calculations are general estimates and may not be appropriate for everyone, especially those with existing medical conditions, pregnant women, children, or elderly individuals.

Not a substitute for professional medical advice

Your Details

years
mg

Estimate from food and supplements

Your Calcium Status

slightly low

800mg / 1000mg recommended

🎯Recommended
1000mg
⚠️Upper Limit
2500mg
📊% of Goal
80%
💊Absorption Rate
30%

Calcium Gap

You need an additional 200mg of calcium daily. This equals about 0.7 cups of milk or equivalent dairy.

Tips for Better Absorption

  • • Take calcium with vitamin D
  • • Split doses (500mg max at once)
  • • Avoid taking with iron supplements
  • • Limit caffeine and sodium

Calcium-Rich Foods

FoodServingCalcium (mg)
Yogurt (plain)1 cup415mg
Milk1 cup300mg
Cheddar Cheese1.5 oz307mg
Sardines (with bones)3 oz325mg
Fortified Tofu1/2 cup250mg
Kale (cooked)1 cup177mg
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sources

  • World Health Organization (WHO) — Global health metrics, disease classification, and nutritional standards. who.int
  • Centers for Disease Control and Prevention (CDC) — Health statistics, BMI guidelines, and disease prevention data. cdc.gov
  • National Institutes of Health (NIH) — Medical research, clinical guidelines, and health calculators. nih.gov
  • Mayo Clinic — Clinical health information, disease reference, and wellness guidance. mayoclinic.org

For a complete list of all references used across the site, visit our full sources page.

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Editorial Note

MyCalcBuddy Editorial Team

This page is maintained as an educational calculator reference.

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Formula Source: WHO Health Metrics Standards

by World Health Organization

🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.