How many sets per week? Count hard sets per muscle

Ask how many sets to do and you'll hear everything from "three sets of ten" to twenty-five sets for chest alone. Most of that advice counts the wrong thing. The number that matters is hard sets per muscle per week: how many working sets each muscle gets, taken close to failure, across all your sessions.

This page covers what counts as a set, how many sets the research supports, how beginners and experienced lifters differ, and how to count your own week. How many days to spread them over is how often to train; how those days are laid out is your workout split.

What counts as a set

Not every set counts the same. Three rules cover it:

• Only hard sets. A working set that ends with only a few good reps left in you counts. Warm-up sets and easy sets don't. A 2021 review of time-efficient training suggests counting the sets taken close to failure, as long as they fall in roughly the 6-to-20-rep range.¹ (Here's how to judge reps left.)
• Per muscle, not per exercise. Three sets of squats and three sets of leg press is six sets for your quads, not "two exercises".
• Indirect sets count about half. A press also works the triceps, and a row also works the biceps. A 2026 meta-regression of 67 studies tested three ways to count sets like these: as a full set, as half a set, or not at all. Counting them as half had the strongest support.² So three sets of bench press is three sets for the chest and about one and a half for the triceps.

How many sets per week: what the research says

More sets build more muscle, up to a point. That much has been clear for years. What newer research adds is where the point is.

• The early numbers. A 2017 meta-analysis of 15 studies put figures on it: each extra weekly set went with a slightly larger gain in muscle size.³ (Progressive overload covers what that means for a beginner.)
• The curve flattens. In 2026, the meta-regression above, with 2,058 participants, found the same climb for both muscle size and strength, flattening as sets were added and flattening much sooner for strength.²
• Ten is a useful line. The American College of Sports Medicine's 2026 position stand, an overview of 137 systematic reviews, found that 10 or more sets per muscle group a week enhanced muscle growth. Its authors write that one set beats none and two beat one, but that the exact number for the most growth can't be pinned down.⁴
• Where it levels off. Reading the 2026 meta-regression, the stand's authors put the point of diminishing returns at about two to three sets per exercise for strength and about 18 to 20 weekly sets for muscle growth, and advise at least two sets per exercise.⁴
• Experienced lifters. A 2022 review of trials in young, trained men (aged 18 to 35, with at least a year of lifting) found no difference in quadriceps or biceps growth between 12 to 20 weekly sets and more than 20; the triceps appeared to grow more on the higher volumes. It concluded that 12 to 20 sets per muscle group a week "may be" the standard to aim for in that group.⁵
• The floor. The 2021 time-efficiency review recommends at least four weekly sets per muscle group, and more, up to ten or beyond, if you want more muscle and have the time.¹

Put together: a floor around four sets, a useful target around ten, a working range of roughly 12 to 20 for experienced lifters, and less and less from each set past that. Strength flattens out sooner than size, so piling on sets is a muscle-building tool more than a strength one.

Beginners vs experienced lifters

If you're new

Six to ten hard sets per muscle a week is plenty, which is what two or three full-body sessions give you. The ACSM stand's authors write that untrained people benefit from many kinds of programs, provided progression and sticking with it are core principles.⁴ The first job is learning the lifts and making the sets hard, not adding more of them. The first four weeks is that stage, written out.

If you've trained for a year or more

Ten to twenty is the range to work in, built up slowly. Keep two things in mind. The trials behind the higher numbers were mostly in young, trained men, so treat the upper end as a ceiling to approach, not a target to start at. And more sets only help if you recover from them: if your lifts are slipping and every session feels heavy, the answer is often fewer sets, not more. (How many rest days you need.)

Not every muscle needs the same number

Muscles you care most about can sit near the top of your range; muscles you're happy to keep can sit near the bottom. Indirect work fills some gaps on its own: a week of presses and rows already gives the arms a few sets before you add a single curl.

How to count your week

It takes two minutes with your logbook. List each muscle, add up its direct sets, add half of its indirect sets, and compare the total with the ranges above. Here's one three-day full-body week, with three sets of each main lift per session and two sets of curls on two of the days:

Read it like this: the big muscles sit just under ten, the biceps are close, and the triceps are low. One easy fix is two sets of a triceps exercise on two days, which takes them to about eight and a half. Nothing else needs to change.

Want to know what each muscle's sets should look like inside the session? How many reps covers the rep ranges, compound exercises covers which lifts train the most muscle per set, and the one-rep max calculator turns one hard set into training loads.

How many sets per workout and per exercise

Divide the weekly number by your sessions. Ten sets for a muscle over two sessions is five each; over three sessions, three or four. Spreading a muscle's sets over two or more days also keeps any one session from piling them all up.

Per exercise, two to four sets is the typical prescription in strength and muscle programs.¹ Two is the minimum the ACSM stand advises for each exercise, and for strength it found two to three sets per session helped.⁴ Short on time? Supersets fit more sets into the same minutes.

How to add sets

1. Make the sets you have hard first. Ten easy sets do less than they look like they do.
2. Add one set at a time, to one or two muscles at a time, and keep it for a few weeks before judging it.
3. Add where progress has stalled, not everywhere at once. (What to check first when you stall.)
4. Take sets away when recovery slips. More only works while you can still beat last week's numbers.

Common mistakes

• Counting easy sets. A set that stops with six or seven reps left barely counts, however many of them you do.
• Counting exercises instead of muscles. Five chest exercises at one set each is five sets, not a big chest day.
• Copying an advanced lifter's volume. Twenty-plus sets per muscle is the top of the range for experienced lifters, not a starting point.
• Doubling the volume overnight. Jumping from eight sets to sixteen in a week is a quick way to outrun your recovery.
• Forgetting the indirect sets. Ten sets of presses and rows is already real work for the arms.
• Training through pain. Sharp pain is not soreness. If you have an injury, a medical condition or a medical question, talk to a doctor before you change how you train.

If you'd rather not count it alone

A page can't see your logbook. Coaching is the version where your workouts live in the Trainerize app, built around the days you actually have, and a weekly call looks at the week you just had and rebuilds the next one. Coaching to build muscle explains how that works, and here's how to apply. Otherwise: open your logbook, count last week's hard sets per muscle, and write the numbers down.