Home / Health Calculators

Health Calculators

Free, easy-to-use tools with instant results and clear explanations.

Calculate body mass index from height and weight.

Estimate body fat percentage using height, waist, neck and sex.

Estimate daily calorie needs using age, sex, height, weight and activity.

Estimate basal metabolic rate from age, sex, height and weight.

Estimate ideal body weight using height.

Estimate a due date from the first day of the last menstrual period.

Estimate pregnancy due date from the last menstrual period.

Estimate the likely ovulation date from cycle length and last period.

Estimate a daily water intake target based on body weight.

Estimate daily protein, carbohydrate and fat targets from calorie needs.

Estimate target heart-rate zones from age and resting heart rate.