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.
All free, no registration required.
All Health Calculators
- BMI Calculator BMI 📖 Read Guide →
- BMI for Children Calculator BMI 📖 Read Guide →
- Body Fat Calculator body fat 📖 Read Guide →
- Calorie Burn Calculator calories 📖 Read Guide →
- Heart Rate Calculator heart rate 📖 Read Guide →
- Ideal Weight Calculator ideal weight 📖 Read Guide →
- Macro Nutrients Calculator macros 📖 Read Guide →
- Pregnancy Due Date Calculator pregnancy 📖 Read Guide →
- Sleep Cycle Calculator sleep 📖 Read Guide →
- Steps to Calories Calculator steps 📖 Read Guide →
- Water Intake Calculator water intake 📖 Read Guide →
Why Trust CalcPro Health Calculators?
Formulas Shown
Each calculator page explains the formula it uses, so you can check the method for yourself.
Standard Formulas
Calculations use widely published standard formulas from recognised professional and academic sources.
Update Dates
We update tools when we identify changes to standards, tax rates, or methodologies.
Privacy First
The numbers you enter are calculated in your browser and are not sent to CalcPro.