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Health & Fitness Calculators

Track your health and fitness with BMI, BMR, body fat, calorie and water intake calculators built on established medical formulas.

BMI Calculator

Calculate your Body Mass Index and see which weight category you fall into.

BMR Calculator

Calculate your Basal Metabolic Rate and daily calorie needs (TDEE).

Body Fat Calculator

Estimate your body fat percentage using the U.S. Navy circumference method.

Body Surface Area Calculator

Free online Body Surface Area Calculator for Health & Fitness Calculators. Enter Height, Weight to get an instant, transparent result you can trust.

Calorie Calculator

Calculate your daily calorie needs to lose, maintain or gain weight.

Ideal Weight Calculator

Free online Ideal Weight Calculator for Health & Fitness Calculators. Enter Height, Gender to get an instant, transparent result you can trust.

Macro Calculator

Free online Macro Calculator for Health & Fitness Calculators. Enter Daily Calories, Protein %, Carb %, Fat % to get an instant, transparent result you can trust.

Ovulation Calculator

Free online Ovulation Calculator for Health & Fitness Calculators. Enter Last Period Start, Average Cycle Length to get an instant, transparent result you can trust.

Pregnancy Due Date Calculator

Free online Pregnancy Due Date Calculator for Health & Fitness Calculators. Enter Last Menstrual Period (LMP) to get an instant, transparent result you can trust.

Pregnancy Week Calculator

Free online Pregnancy Week Calculator for Health & Fitness Calculators. Enter LMP Date to get an instant, transparent result you can trust.

Protein Intake Calculator

Free online Protein Intake Calculator for Health & Fitness Calculators. Enter Body Weight, Goal to get an instant, transparent result you can trust.

Water Intake Calculator

Calculate your recommended daily water intake based on weight, exercise and climate.
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