Fitness, without the black box
Fitness calculators you can inspect.
EVR gives you useful estimates and shows the thinking behind them—formula, assumptions, units, and limitations included.
Browse calculatorsCalculator library
Start with the question you have.
Energy
Plan energy intake
Estimate daily energy needs and explore sustainable calorie targets.
BMR · TDEE · Calorie deficit
MacrosBuild a macro target
Turn an energy target into practical protein, carbohydrate, and fat ranges.
Macro split · Protein
StrengthUnderstand your lifts
Estimate training maxes and compare strength without hiding the equation.
One-rep max · Training load
The EVR standard
An estimate should explain itself.
01
Named formulas
02
Explicit units
03
Visible assumptions
04