Health Calculators

Calculate your Body Mass Index (BMI) to assess if your weight is in a healthy range for your height.

Estimate daily calorie needs based on age, weight, height, gender, and activity level.

Estimate body fat percentage using the U.S. Navy method with tape measurements.

Calculate ideal body weight ranges based on height and gender using the Devine formula.

Calculate running and walking pace per kilometer or mile, plus speed in km/h or mph.

Estimate basal metabolic rate using the Mifflin-St Jeor equation. Use the estimate as a general starting point and review the assumptions behind it.

Estimate total daily energy expenditure from BMR and activity level. Use the estimate as a general starting point and review the assumptions behind it.

Estimate daily protein, carbohydrate, and fat targets from calorie intake and macro percentages.

Estimate a daily protein target from body weight and an activity multiplier.

Estimate daily water intake using body weight and a simple weight-based guideline.

Estimate lean body mass from body weight and body fat percentage. Use the estimate as a general starting point and review the assumptions behind it.

Calculate waist-to-height ratio from waist and height measurements. Use the estimate as a general starting point and review the assumptions behind it.

Estimate one-repetition maximum from weight lifted and repetitions using the Epley formula.

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

Estimate maximum and target heart-rate zones using age and an intensity percentage.

Estimate a daily calorie target from maintenance calories and a chosen deficit.