Free Health Calculators

Free health calculators for BMI, body fat, calorie burn, heart rate, hydration, nutrition, and sleep. All tools follow WHO and CDC methodologies.

11 calculators — all free, no registration required.

All Health Calculators

Why Trust CalcPro Health Calculators?

Expert-Reviewed

All calculators are reviewed by the CalcPro Editorial Team before publication.

Validated Formulas

Every calculation uses industry-standard formulas sourced from recognised professional and academic bodies. Sources are documented transparently.

Regularly Updated

All tools are reviewed at least annually and updated when standards, tax rates, or methodologies change. Last reviewed: June 2025.

Privacy First

All calculations run locally in your browser. No personal data is collected, stored, or transmitted.