Free Health & Fitness Calculators
Our collection of 25 health and fitness calculators covers everything from basic body measurements to detailed nutrition planning. Whether you want to calculate your BMI, plan a weight loss timeline, find your optimal running pace, or determine how much water you should drink daily â CalcHub has a free, accurate tool for you.
Body Composition Tools
Our BMI Calculator is one of our most-visited tools, helping users quickly assess their weight category using the WHO standard scale. Pair it with our Body Fat Calculator (US Navy method) and Lean Body Mass Calculator for a comprehensive picture of your body composition.
Nutrition Calculators
Start with your BMR Calculator to find your basal metabolic rate, then use the TDEE Calculator to account for your activity level. The Macro Calculator breaks down your ideal protein, carb, and fat ratios for any fitness goal.
Exercise & Performance
Athletes and fitness enthusiasts will find our Running Pace Calculator, One Rep Max Calculator, and activity calorie calculators essential for training planning.