Health Calculators

Quick, formula-based health metrics: BMI, daily calorie needs, and healthy weight ranges.

Calculate your Body Mass Index (BMI) from height and weight in metric or imperial units, and see which BMI category you fall into.

Calculate your Basal Metabolic Rate (BMR) and daily calorie needs based on age, sex, height, weight, and activity level.

Estimate your ideal body weight from height and sex using the Devine and Robinson formulas, plus the healthy BMI weight range.

Estimate your body fat percentage from height, neck, waist, and hip measurements using the US Navy circumference method, with fitness categories.

Calculate your estimated due date from the first day of your last period, see how many weeks pregnant you are, and when each trimester starts.

Calculate your running pace per kilometer and per mile from any distance and time, plus projected finish times for 5K, 10K, half, and full marathon.