Skip to content
Calculator Collection

Compare calculators

Both calculators run independently β€” change the inputs on either side to compare results.

Muscle Building

Hypertrophy Rep Range Calculator

Find the ideal rep range for muscle growth based on exercise type, target muscle, time under tension, and load. Use this when programming workouts to maximize hypertrophy for a specific muscle group.

Optimal Rep Range

6 reps

6
8
13
16
Heavy/strength endClassic hypertrophyMetabolic rangeHigh-rep endurance

6-7 reps emphasizes mechanical tension on heavy compounds at ~75-85% 1RM; effective for hypertrophy with strength carryover but more joint and CNS load.

The output is clamped to literature-backed rep zones (roughly 6-20 reps) where mechanical tension and metabolic stress both drive growth (Schoenfeld).

Muscle Building

Hypertrophy Rep Range Calculator

Calculate the correct training weight to use for any target rep range based on your one-rep max. Use this when programming hypertrophy blocks to ensure you are lifting at the right intensity for muscle growth.

Fill in the required fields to see your result.

Key differences

Hypertrophy Rep Range CalculatorHypertrophy Rep Range Calculator
CategoryMuscle BuildingMuscle Building
Inputs required42
ResultOptimal Rep Range (reps)Working Weight (kg)
What it doesFind the ideal rep range for muscle growth based on exercise type, target muscle, time under tension, and load. Use this when programming workouts to maximize hypertrophy for a specific muscle group.Calculate the correct training weight to use for any target rep range based on your one-rep max. Use this when programming hypertrophy blocks to ensure you are lifting at the right intensity for muscle growth.