Health references

Simple health and fitness reference calculators.

Estimate BMI, calorie needs and other general reference values. These tools do not diagnose conditions or replace professional medical advice.

Estimate body mass index from height and weight.

Estimate daily calorie needs.

Estimate basal metabolic rate.

Get a broad body-fat reference estimate.

Estimate daily water intake from body weight.

Estimate protein intake from weight and a grams-per-kilogram target.

Compare waist circumference with height.

Estimate pace from time and distance.

Estimate walking distance from steps and stride length.

Calculate elapsed time between bedtime and wake time.