Fit Calculator

"Free fitness calculators: BMI, 1RM, macros, TDEE, protein, body fat and water intake. Instant results, no sign-up, no data saved. Made by REVIVE Fitness."

Fit Calculator gives you 7 essential fitness calculators in one simple, free app — no sign-up, no accounts, no data ever saved or tracked.

CALCULATORS INCLUDED: • BMI Calculator — check your Body Mass Index instantly • 1RM Calculator — estimate your one-rep max from any set • Macro Calculator — daily calories and macro split for your goal • TDEE Calculator — your maintenance and target calories • Protein Calculator — daily protein target based on your goal • Body Fat Calculator — US Navy method, just a tape measure needed • Water Intake Calculator — your daily hydration target

Every calculator gives you an instant, accurate result — just enter your numbers and go. No account needed, nothing saved, completely private.

Fit Calculator is made by the team behind REVIVE FITNESS, a complete AI-powered training app with personalised workouts, nutrition plans, AI coaching and Apple Watch support. If you're serious about your training, check out REVIVE too.

This app provides general fitness calculations for informational purposes only and is not a substitute for professional medical advice. Always consult a doctor or qualified health professional before making decisions based on these results.