BMR Calculator
Estimate basal metabolic rate using the Mifflin-St Jeor equation.
Calculators and explainers tagged under Health.
Estimate basal metabolic rate using the Mifflin-St Jeor equation.
Estimate lean body mass (everything that isn't fat) using the Boer formula and your sex, height, and weight.
Compute basal metabolic rate (BMR) — the calories needed to keep your body functioning at rest — using the Mifflin-St Je...
Estimate BMI from height and weight in either metric or imperial units, with WHO classification.
Calculates recommended daily water intake from body weight and physical activity level using the standard hydration refe...
Calculate your waist-to-hip ratio and see where it falls in the standard health-risk categories used by major health bod...
Estimate blood alcohol content using the Widmark formula from drinks consumed, body weight, sex, and time elapsed.
Compute the mean arterial pressure (MAP), an indicator of overall blood-vessel pressure, from systolic and diastolic rea...
Estimate calories burned during an activity from your weight, the MET value, and the duration.
Estimate body surface area in m² from height and weight using the DuBois & DuBois formula — useful for medication dosing...
Assess cardiometabolic risk from waist circumference using IDF/NIH thresholds, which differ by sex.
Estimate body fat percentage using the Body Adiposity Index, an alternative to BMI based on hip circumference and height...
Estimate predicted vital lung capacity from age, height, and sex — commonly used as a reference value in pulmonary scree...
Suggest bedtimes (or wake times) so you wake at the end of a 90-minute sleep cycle, plus a 14-minute average to fall asl...
Estimate the due date, current gestational age, and trimester from the first day of the last menstrual period and the us...
Estimate body fat percentage from circumference measurements using the US Navy tape-measure method.
Healthy-weight range for your height using multiple published formulas (Devine, Robinson, Miller, Hamwi) — averaged for...
Plan a realistic calorie deficit to reach a goal weight by a target date, given your current weight and daily calorie bu...
Estimated daily calories are a loose target, not a contract. A quick guide to using the number without letting it use you.
BMI is a one-number screen, not a diagnosis. Here is how to read it honestly — and what to look at alongside it.