Free health and fitness calculators — BMI, calories, macros, heart rate, pregnancy and more.
Calculate Body Mass Index and healthy weight range.
Convert height between centimetres, metres and feet.
Calculate bra size from band and cup measurements.
Calculate daily calorie needs based on weight and activity.
Calculate protein, carbs and fat macros for any goal.
Calculate daily water intake needs based on body weight.
Measure body fat percentage using the Navy tape method.
Find your ideal healthy weight range based on height.
Calculate daily protein needs for your fitness goals.
Calculate running pace, speed and finish time.
Calculate target heart rate zones for training.
Find optimal bedtime based on 90-minute sleep cycles.
Calculate your one-rep max from any lift and reps.
Generate personalised workout plans for any fitness goal.
Create weekly meal plans based on calorie goals.
Analyse nutritional content of any recipe or ingredient.
Track and predict menstrual cycle dates and phases.
Calculate pregnancy due date from last menstrual period.
Calculate basal metabolic rate for daily calorie needs.
Track pregnancy progress and milestones week by week.
Calculate healthy weight gain targets during pregnancy.
Estimate conception date from due date or LMP.
Calculate expected due date from last menstrual period.
Calculate running or walking pace for any distance.
Calculate body fat using US Army tape measurement method.
Calculate daily carbohydrate intake for your diet goals.
Calculate lean body mass from weight and body fat.
Calculate the healthy weight range for your height.
Estimate calories burned during any exercise activity.
Calculate target heart rate for cardio exercise zones.
Calculate daily fat intake targets for healthy eating.
Calculate total daily energy expenditure for any goal.
Predict ovulation dates from cycle length and last period.
Calculate likely conception date from due date.
Predict upcoming period dates based on cycle history.
Calculate body surface area for medical dosing.
Estimate blood alcohol content from drinks and weight.
Calculate Weight Watchers SmartPoints for any food.
