Free workout tools and calculators
Less guesswork, more lifting. Simple tools to help you make sense of your training.
Every calculator works in kilograms and pounds, runs in your browser and needs no account. Each one explains the maths behind its numbers, with worked examples and the research it leans on, so you can check the result instead of taking it on trust.
Strength5 tools
Calculators for the numbers behind a barbell. Work out what you can lift, then what to load for the sets that follow.
- One Rep Max CalculatorTurn a recent set into an estimated max. Compare Epley, Brzycki and Lombardi, then read off your training percentages and every rep max from 2RM to 12RM.
- RPE CalculatorRate a set by effort, get an estimated max, and read off the weight for your next target. Includes a full RPE chart of percentages by reps and effort.
- Barbell Plate CalculatorSee which plates go on each side of the bar for any weight, using only what your gym stocks. Count a loaded bar, add collars, and switch bars.
- Warm-Up CalculatorGet every warm-up set for your working weight, with reps, rest and the plates per side. Ramps for work sets, heavy singles, meets and 5x5 programs.
- DOTS CalculatorScore a powerlifting total against your bodyweight with DOTS, Wilks and IPF GL points, the numbers meets use to pick a best lifter.
Nutrition1 tool
The numbers on the plate that decide whether training builds muscle or burns fat.
Popular pages
Switching apps1 tool
Bring the training you have already logged with you, wherever it was written down.
Find a gym1 tool
Somewhere to train, close to where you are right now.