Health and fitness

Calculators built on published formulas and guidelines from bodies such as WHO, NICE, the American Heart Association and the European Society of Cardiology. Each page shows its sources. They are for general wellness, not diagnosis, and what you type never leaves your device.

• BMI calculatorBMI with WHO and ethnicity-adjusted ranges.
• Waist-to-height ratio calculatorIs your waist under half your height?
• Waist-to-hip ratio calculatorWaist-to-hip ratio and waist size by background.
• Body fat calculatorUS Navy and RFM tape-measure estimates.
• Ideal weight calculatorDevine, Robinson, Miller, Hamwi and a BMI range.
• Calorie calculatorBMR and daily calorie needs (TDEE).
• Calories burned calculatorEnergy used by 90+ activities (METs).
• Exercise and steps goal checkerYour week against WHO activity guidelines.
• Heart rate zone calculatorMax heart rate and exercise intensity ranges.
• Blood pressure checker and logCompare readings with US and European guidelines.
• Blood test unit converterGlucose, cholesterol and HbA1c units.
• Pregnancy due date calculatorDue date from last period, conception or IVF.
• Running pace calculatorPace, finish time or distance, with splits.