Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
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
6-7 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).
Hypertrophy Volume Calculator
Calculate the optimal number of weekly sets for a target muscle group based on your training experience, recovery capacity, and session frequency. Use it to avoid both under-training and junk volume that stalls progress.
Optimal Weekly Volume
8 sets
Under 10 weekly sets sits near the minimum effective volume; most lifters need at least 10 hard sets per muscle group per week to see measurable growth.
Weekly set ranges follow Renaissance Periodization's MEV-MAV-MRV framework, where roughly 10-20 hard sets per muscle group per week drives most hypertrophy.
Key differences
| Hypertrophy Rep Range Calculator | Hypertrophy Volume Calculator | |
|---|---|---|
| Category | Muscle Building | Muscle Building |
| Inputs required | 4 | 3 |
| Result | Optimal Rep Range (reps) | Optimal Weekly Volume (sets) |
| What it does | 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. | Calculate the optimal number of weekly sets for a target muscle group based on your training experience, recovery capacity, and session frequency. Use it to avoid both under-training and junk volume that stalls progress. |