Strength
As of 2026-04-24
How Workout Volume Calculator works
Methodology for the Workout Volume Calculator: formulas, coefficients, data sources, assumptions, and known limitations.
Scope
Computes total training volume per muscle group from sets x reps x load and compares against evidence-based weekly set ranges.
Formula
weekly_sets_per_muscle = sum(working_sets_targeting_muscle across sessions). volume_load = sets * reps * load.
Coefficients
| Parameter | Value | Note |
|---|---|---|
| MEV (min effective vol.) | ~8 sets/muscle/week | |
| MAV (mid band) | ~12–20 sets/muscle/week | |
| MRV (max recoverable) | ~20+ sets/muscle/week (varies widely) |
Data sources
- Schoenfeld BJ, Ogborn D, Krieger JW. Dose-response relationship between weekly resistance training volume and increases in muscle mass: a systematic review and meta-analysis. J Sports Sci. 2017;35(11):1073-1082. — PMID 27433992. Source for the minimum-effective-volume and muscle-response curves.
- Baz-Valle E, Fontes-Villalba M, Santos-Concejero J. Total number of sets as a training volume quantification method for muscle hypertrophy: a systematic review. J Strength Cond Res. 2021;35(3):870-878. — PMID 29489727. Supports counting working sets as the primary volume metric.
- Israetel M, Hoffmann J, Smith C. Scientific Principles of Strength Training. Renaissance Periodization, 2015. — Source of the MEV/MAV/MRV framework; coaching textbook, not peer-reviewed.
Assumptions
- Counted sets are within 1–3 RIR and at or above 60% 1RM intensity.
Approximation range
MEV/MAV/MRV ranges are population estimates with substantial individual variance.
Limitations
- Double-counting compound lifts across muscle groups is a judgment call; the tool exposes the breakdown.
- Volume without intensity context is incomplete — track both.
Reproducibility
Chest: bench 4x6, incline 3x8, flyes 3x12. Direct chest sets = 10/week.
Change log
- 2026-04-24: methodology page first published.
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