Fitness
calculators
Four calculators that show their working. Each one uses the numbers this site already publishes, so the answer here and the answer in the guide are the same answer. No account needed, and nothing you type is stored.
Read the maths behind theseTDEE and calorie targets
What a day costs you, and the five calorie targets that come off it.
Signed in, the weight box opens in your unit and the activity level starts from the training days on your profile.
One rep max
What your best single is worth, from a set you actually did.
Saves the set to your records.
Macros
A calorie target divided into protein, fat and carbohydrate.
Nothing here is stored. The numbers stay in this browser.
Plate loader
What to hang on each end of the bar, and what is actually loadable.
Nothing here is stored. The numbers stay in this browser.
What is not here, and why
No body fat calculator: the guide on this site publishes no formula and no worked example for the tape measure method, so a calculator for it could only be checked against itself. No bodyweight or measurement tracking either, because nothing in the database stores a bodyweight yet. Both are worth building and neither is worth faking.