Free Fitness Calculators
Science-backed calculators to help you track your fitness journey. No sign-up required — completely free.
BMI Calculator
Calculate your Body Mass Index and find your health category based on height and weight.
Try it freeBMR & TDEE Calculator
Find your Basal Metabolic Rate and Total Daily Energy Expenditure for calorie planning.
Try it freeBody Fat Calculator
Estimate your body fat percentage using the US Navy method with simple body measurements.
Try it freeMacro Calculator
Get your ideal protein, carbs, and fat split based on your goal — cut, maintain, or bulk.
Try it freeCalorie Deficit Calculator
Plan your weight loss with a safe calorie deficit. See how long it takes to reach your goal.
Try it freeIdeal Weight Calculator
Find your ideal body weight using Devine, Robinson, Miller, and Hamwi formulas.
Try it freeOne Rep Max Calculator
Estimate your 1RM using Epley and Brzycki formulas. Plan your strength training percentages.
Try it freeRunning a gym? Get these tools built into your member portal — free.
Get Started Free