free tools
the calculators, on honest math.
Six calculators built on the same rules the platform runs: calories derived from macros, one-rep maxes marked estimated, ranges where a decimal would be a lie. No signup, no email gate. Use them, keep the numbers.
calculator
one-rep max calculator
Your estimated 1RM from any set, with the three formulas the platform uses.
open the calculator →calculator
tdee calculator
Maintenance calories from Mifflin-St Jeor and an honest activity multiplier.
open the calculator →calculator
macro calculator
A calorie target split into protein, fat, and carbs, priced at 4/4/9.
open the calculator →calculator
protein calculator
A daily protein range by goal, never a false-precision decimal.
open the calculator →calculator
body fat calculator
The US Navy tape-measure estimate, marked as the rough proxy it is.
open the calculator →calculator
calorie deficit calculator
An intake target and an honest weekly rate; below-BMR plans are refused.
open the calculator →
Every output that is an estimate says so on the number itself, the same way the platform marks an estimated max on a training screen. See how the real thing tracks these numbers over time on the platform.