Online Health Calculators

Health and wellness calculators for calories, BMI, pregnancy, hydration, ideal weight, and body metrics.

By country

By topic

General

Calculate your ideal weight using multiple recognized medical formulas

Classify your blood pressure reading according to AHA guidelines and learn your cardiovascular risk level.

Estimate pregnancy probability based on your age, time trying, and cycle timing

Calculate your current pregnancy week, trimester, and due date

Calculate your body surface area using the Du Bois, Mosteller, and Haycock formulas. Useful for drug dosing and medical assessments.