Training Volume Calculator — Weekly Sets Per Muscle

Weekly training volume is the number of hard sets one muscle group gets in seven days. Multiply the sessions that hit that muscle by the sets you do in each one. Enter both below and the calculator returns the weekly total, plus the band it lands in.

What this page does, and what its two siblings do

Three pages in this cluster look alike from the outside. They answer different questions on purpose:

• This one is arithmetic. It converts your actual schedule into a weekly number. It does not tell you the number is right.
• Sets per week for hypertrophy is the recommendation — what the trained-lifter trials suggest you aim for when muscle size is the goal.
• The sets per muscle group per week chart is the reference table you check without doing any math.

Start here, then move to whichever of the other two you actually needed.

Where the three bands come from, and how firm they are

Schoenfeld, Ogborn and Krieger pooled 34 treatment groups from 15 studies in 2017 and ran a meta-regression. Two of their three analyses came back statistically significant:

• Treating weekly sets as a continuous number: significant (P = 0.002). Each additional set was worth an increase in effect size of 0.023, or 0.37% more growth.
• Comparing the higher-volume arm against the lower-volume arm inside each study: significant (P = 0.03), an effect-size difference of 0.241, equal to a 3.9% difference in percentage gain.

The third analysis is the one the popular bands come from — under 5, 5 to 9, and 10 or more sets per muscle — and it is the weakest of the three. The authors report it as a trend, P = 0.074, which does not clear the usual threshold. The ruler above uses those cut points because they are useful landmarks, not because the study proved a step change at 5 and at 10.

The honest summary of the paper is the continuous one: growth rises gradually with sets, roughly a third of a percent per set, with no cliff anywhere.

The 2026 update: still rising, visibly flattening

A larger set of meta-regressions ran the question again in Sports Medicine in 2026, pooling 67 studies and 2,058 participants (79.1% male, average age 25.2 years). Using Bayesian models, the posterior probability that more volume means more hypertrophy was 100% — the direction is not in doubt. But the best-fitting curves show diminishing returns, and the flattening is sharper for strength than for size.

Practically, that means the jump from 6 sets to 12 buys you far more than the jump from 18 to 24, and it explains why the argument in this field has moved from “does volume matter” to “where does it stop paying”.

Worked example: two sessions of 4 sets is 8 weekly sets. Adding a third session of 5 sets takes you to 15 — seven more sets, which by the 2017 continuous model is worth roughly 2.6% more growth. Real and worth having, but not a transformation, and it costs you a third training day.

The floor nobody mentions

Before any of this, the federal baseline: the Physical Activity Guidelines for Americans ask adults for muscle-strengthening activity involving all major muscle groups on 2 or more days a week. That is a public-health minimum, phrased in days rather than sets, and it is a long way below what any hypertrophy study calls a training dose. If you are choosing between 6 weekly sets and none, the gap that matters is the second one.

Where to go next

The two ends of the scale have their own pages: the minimum effective volume is the least that still grows muscle, and the maximum recoverable volume is the ceiling your recovery sets. To turn a set count into working loads, use the 1RM percentage chart, and to judge how hard each set was, see the reps in reserve scale.

This content is informational and does not replace advice from a qualified coach or physician.