Health & Fitness Calculators
BMI, body fat, calories, pace, steps and pregnancy dates, each with a plain-English explanation of the method.
Body & nutrition
- BMI CalculatorCalculate your body mass index from height and weight, and see the healthy weight range for your height.
- Body Fat CalculatorEstimate your body fat percentage with the US Navy tape-measure method, plus fat mass and lean mass.
- Calorie CalculatorEstimate the calories you need each day to maintain, lose or gain weight.
- BMR CalculatorCalculate your basal metabolic rate, the calories your body burns at complete rest.
- Ideal Weight CalculatorSee your ideal weight by four established formulas, alongside the healthy BMI range for your height.
Pregnancy
- Due Date CalculatorEstimate your baby's due date from the first day of your last period and your cycle length.
- Pregnancy CalculatorFind out how many weeks pregnant you are from your due date, and which trimester you are in.
- Pregnancy Conception CalculatorEstimate your ovulation date and fertile window from your last period and cycle length.
Walking & exercise
- Kilojoules to Calories ConverterConvert kilojoules to calories (kJ to kcal) instantly, with the formula and a quick conversion chart.
- Pace CalculatorCalculate running or walking pace per mile and per kilometer, with projected race finish times.
- How Long to Walk a Mile CalculatorFind how long it takes to walk a mile, or any distance, at different walking speeds.
- How Many Steps in a Mile CalculatorCalculate how many steps you take in a mile based on your height.
- Miles to Steps CalculatorConvert a distance in miles to steps, personalized to your height.
- Steps to Miles CalculatorConvert a step count to miles using a step length based on your height.
- Steps to Km CalculatorConvert a step count to kilometers using a step length based on your height.
- Steps to Calories CalculatorEstimate the calories burned from a number of steps, based on your weight, height and walking pace.