Free Fitness Calculators & Workout Tools
Fast, focused tools for planning workouts, estimating training numbers, and getting your next session started.
YouTube Workout Organizer Chrome Extension
Clip timestamps, add tags and coaching cues, and organize useful YouTube workout moments without switching tabs. Sign in to sync clips and log completed training in TrainFlow.
Open free toolYouTube Workout Timer for Phone
Mark video intervals and rest periods, then open or share a mobile-friendly workout timer.
Open free toolWorkout Plan Generator
Create a starting weekly template for muscle gain, weight management, or endurance with no account required.
Open free toolWorkout Routine Builder
Arrange exercises, sets, reps, and rest into a custom workout you can edit and print.
Open free toolTabata & Interval Timer
Run custom work and rest intervals with rounds, sets, sound cues, and fullscreen mode.
Open free tool1RM Calculator
Estimate your one-rep max with three formulas and view training percentages.
Open free toolCalories Burned Calculator
Get a broad MET-based estimate for strength training, HIIT, running, cycling, and more.
Open free toolWorkout Volume Calculator
Add multiple exercises and calculate total volume load as sets × reps × weight.
Open free tool