Science-backed tools to help you understand your body and optimize your training.
Understand your body composition and daily needs
Calculate your Body Mass Index to understand if your weight is in a healthy range for your height.
Find out how many calories you burn daily based on your stats and activity level.
Get your optimal protein, carb, and fat targets based on your TDEE and fitness goal.
Fine-tune your calorie deficit or surplus and see a realistic weight projection over 24 weeks.
Calculate your daily protein target and per-meal distribution based on your body and goals.
Estimate your body fat percentage using the US Navy circumference method.
Calculate your Fat-Free Mass Index and see how close you are to your natural muscular potential.
Whether you're just starting your fitness journey or optimizing your training, these calculators give you the data you need. All calculations use peer-reviewed, science-backed formulas used by fitness professionals worldwide.