7 free tools
Health Calculators
Health estimates based on published medical formulas such as Mifflin-St Jeor, the US Navy body fat method and Naegele's rule. They are for general guidance and do not replace advice from a doctor.
HealthBMI CalculatorBody mass index with WHO and Asian categories, plus your healthy weight range.HealthCalorie CalculatorDaily calories to maintain, lose or gain weight, based on Mifflin-St Jeor.HealthBMR CalculatorBasal metabolic rate: calories your body burns at rest.HealthIdeal Weight CalculatorIdeal body weight for your height by Devine, Robinson, Miller, Hamwi and BMI range.HealthBody Fat CalculatorBody fat percentage with the US Navy tape method, plus fat and lean mass.HealthWater Intake CalculatorHow much water to drink a day based on weight, activity and hot weather.HealthPregnancy Due Date CalculatorEstimated due date, current week and trimester from your last period or conception.
Which health tool do you need?
- BMI Calculator: Body mass index with WHO and Asian categories, plus your healthy weight range.
- Calorie Calculator: Daily calories to maintain, lose or gain weight, based on Mifflin-St Jeor.
- BMR Calculator: Basal metabolic rate: calories your body burns at rest.
- Ideal Weight Calculator: Ideal body weight for your height by Devine, Robinson, Miller, Hamwi and BMI range.
- Body Fat Calculator: Body fat percentage with the US Navy tape method, plus fat and lean mass.
- Water Intake Calculator: How much water to drink a day based on weight, activity and hot weather.
- Pregnancy Due Date Calculator: Estimated due date, current week and trimester from your last period or conception.