Health & Fitness Calculators
BMI, calorie, BMR, body fat, pregnancy and heart rate calculators based on standard medical formulas.
BMI CalculatorCheck your body mass index, category and healthy weight range.BMR CalculatorFind the calories your body burns at rest, and your daily needs.Calorie CalculatorHow many calories to eat a day to lose, keep or gain weight.TDEE CalculatorFind how many calories you burn in a day, and your targets.Body Fat CalculatorEstimate body fat % with the US Navy tape-measure method.Ideal Weight CalculatorIdeal body weight by height with 4 formulas and BMI range.Macro CalculatorDaily protein, carbs and fat grams for your goal.Protein CalculatorDaily protein grams by body weight, activity and goal.Water Intake CalculatorDaily water in litres by weight, exercise and climate.Pregnancy Due Date CalculatorDue date, current week and milestones from LMP or conception.Ovulation CalculatorOvulation day and fertile window for the next 3 cycles.Period CalculatorNext 6 period dates with ovulation and fertile days.Heart Rate CalculatorMax heart rate and Karvonen training zones by age.Calories Burned CalculatorCalories burned for 25+ activities by weight and time.
Free online health calculators
All 14 health tools on CodingMarble Calculator are free, need no sign-up and work on mobile: BMI Calculator, BMR Calculator, Calorie Calculator, TDEE Calculator, Body Fat Calculator, Ideal Weight Calculator, Macro Calculator, Protein Calculator, Water Intake Calculator, Pregnancy Due Date Calculator, Ovulation Calculator, Period Calculator, Heart Rate Calculator, Calories Burned Calculator.