How many sets per workout (and per muscle, per week)?

How many sets per workout? Wrong question, slightly. The number that matters is how many hard sets each muscle gets per week. The workout is just where you deliver them. Work out the weekly number first, divide it by the days you lift, and the per-workout answer falls out.

For most people that lands somewhere around 10 to 20 hard sets per muscle per week, split into 2 to 3 sessions, which means roughly 4 to 10 sets per muscle group per workout and 12 to 25 total sets per workout. Below is where those numbers come from, how to adjust them if you're a beginner or you also run, and how to count sets without lying to yourself. If you'd rather not do arithmetic at the gym, that's what a training app that adapts week to week is for.

Start with weekly sets, not workout sets

Muscle doesn't know what day it is. It responds to the total stimulus across the week. That's why the research on training volume is mostly about weekly sets per muscle, and why the same weekly total can be delivered by very different routines.

The landmark paper here is a 2017 meta-analysis by Schoenfeld and colleagues. Pooling 15 studies, they found a graded dose-response relationship: more weekly sets per muscle produced more muscle growth, with each additional weekly set associated with a small extra gain (Schoenfeld et al., 2017). When they grouped volumes into fewer than 5, 5 to 9, and 10 or more weekly sets per muscle, the higher categories tended to do better.

A much larger set of meta-regressions, covering 67 studies and over 2,000 participants, confirmed that both muscle size and strength keep increasing as weekly volume rises, but with diminishing returns, and the returns shrink much faster for strength than for size (Pelland et al., 2026).

So the pattern is clear: more sets help, up to a point, and each extra set is worth a bit less than the one before.

Once you have a weekly target, the split is just delivery. Whether you divide it across full-body days or a hybrid-friendly split built around running doesn't change much; the trade-offs are laid out in this breakdown of workout splits explained.

How many sets per workout to build muscle

Here's a practical weekly target per muscle group:

The 12–20 figure comes from a systematic review of studies in young, resistance-trained men, which found no difference between moderate (12–20) and high (more than 20) weekly sets for the quads or biceps, and an advantage for higher volume only in the triceps (Baz-Valle et al., 2022). The authors suggested 12–20 weekly sets per muscle group as a sound standard recommendation for that population. Beginners and people who also run don't need to start there.

From weekly to per workout

Divide the weekly number by how many times you train each muscle:

• ›12 weekly sets, trained 2x a week → 6 sets per muscle per workout
• ›12 weekly sets, trained 3x a week → 4 sets per muscle per workout
• ›18 weekly sets, trained 2x a week → 9 sets per muscle per workout

How many sets per muscle group per workout

A common coaching rule of thumb is to keep it to roughly 4 to 10 hard sets per muscle in a single session. Past that, the last sets tend to be junk: fatigued, sloppy and slow, while costing just as much recovery. If your weekly target pushes a single session beyond about 10 sets for one muscle, train that muscle more often instead of longer.

Frequency itself is mostly a scheduling choice for muscle growth. A meta-analysis found that, when weekly volume was matched, training a muscle once, twice or three or more times a week produced similar hypertrophy (Schoenfeld et al., 2019). Strength is a bit different: gains did rise with higher frequency, with diminishing returns (Pelland et al., 2026). Practice matters for skilled lifts. That's why most programs hit the main lifts at least twice a week.

How many total sets per workout

Add up the muscles you train in a session. A typical full-body session might look like:

Most people land around 12 to 25 total working sets per workout, which fits in roughly 45 to 75 minutes with sensible rest. If your sessions are routinely pushing 30-plus sets, you're either training a split with lots of single-muscle work, or you're doing sets that aren't really doing anything.

What counts as a set

This is where most volume math goes wrong.

Only hard sets count

Warm-ups don't count. Sets you stop with eight reps left in the tank barely count. A "hard set" is a working set taken reasonably close to failure, roughly 0 to 3 reps in reserve, or about RPE 7 to 10 if you rate effort (here's a guide to RPE scale ratings if you don't).

Proximity to failure matters for growth. A series of meta-regressions found muscle growth increased as sets were stopped closer to failure, while strength gains showed little relationship with it (Robinson et al., 2024). That doesn't mean every set to failure. It means the sets you count need to be genuinely challenging.

Compound lifts count for more than one muscle, but not fully

A bench press trains chest, but it also trains triceps. Do those triceps sets count? The 2026 meta-regressions tested different counting methods and found the best fit came from counting a set as a full set for the main target muscle and half a set for muscles trained indirectly (Pelland et al., 2026). So 4 sets of bench press ≈ 4 chest sets and about 2 triceps sets.

Practical upshot: if your program is built on compound lifts, you're already getting a lot of arm and shoulder volume. Beginners in particular don't need much isolation work; the basics in more on beginner strength training cover most of the body.

Reps per set: does it change the set count?

Less than people think. When sets are taken to failure, muscle growth was similar across a wide range of loads, while heavier loads produced better gains in maximal strength (Schoenfeld et al., 2017).

So a hard set of 6 and a hard set of 15 count roughly the same for muscle growth. The low reps vs high reps for muscle growth debate mostly matters for how you feel: heavy sets are more taxing on joints and the nervous system, very high-rep sets are miserable and cardio-ish. Most people do well with most sets in the 5 to 15 range.

If your goal is strength rather than size, the picture shifts toward heavier sets and more practice on the specific lifts, which is the core of strength vs hypertrophy training. Pick loads you can move for the target reps with good form, leaving a rep or two in reserve; that's the whole trick of how to choose weight for 5-8 rep range strength training.

Beginners: fewer sets than you'd think

If you're new, 2 to 3 hard sets per exercise and 6 to 10 weekly sets per muscle is plenty. Your limiting factor is learning the movements, not volume. Add sets later, when progress on the same weight and reps stalls.

How many days you lift sets your ceiling too. Two full-body sessions with 3 sets per lift already gives most muscles 6 weekly sets. That's a fine start, and training frequency can rise as life allows.

How many sets per workout if you also run

Running is training. It uses your legs, eats into recovery, and competes for time. So hybrid athletes should usually run lower lifting volume than pure lifters, especially for legs.

Practical adjustments:

• ›Legs: start at the low end, around 6 to 10 weekly hard sets for quads, hamstrings and glutes. Running already provides a lot of leg work, just not the kind that builds much strength.
• ›Upper body: volume can stay close to normal. It barely interferes with running.
• ›Session placement: keep heavy leg sessions away from intervals and the long run.
• ›Fewer, heavier sets: if lifting is there to support running, two or three hard sets of the main lifts usually do the job.

The good news: concurrent training doesn't seem to blunt maximal strength or muscle growth much overall. A 2022 meta-analysis found that adding aerobic training to strength training didn't meaningfully reduce maximal strength or hypertrophy, though explosive strength gains were somewhat lower (Schumann et al., 2022). For full runner-specific weeks, see strength and conditioning exercises for runners.

How to progress volume

Don't start at the top of the range. Start where you can recover, then add when progress stalls:

1. ›Add reps or load first.
2. ›When that stalls for two or three weeks, add one set per muscle per week.
3. ›Every few weeks, take a lighter week and drop back down.

Stop adding when sessions get longer but progress doesn't follow, or when recovery starts slipping. More sets is a tool, not a personality.

The geeky bits (optional)

Some volume questions are interesting but won't change what you do on Monday:

• ›Tempo: eccentric vs concentric emphasis changes how a set feels and how sore you get, but hard sets are still hard sets.
• ›Failure: what does training to failure mean, and do you need it? Not on every set. Use it occasionally, on safer exercises, and rarely on heavy squats and deadlifts.
• ›Types of growth: sarcoplasmic vs myofibrillar hypertrophy is a fun argument; set counts work the same either way.
• ›More fibers or bigger fibers: hypertrophy vs hyperplasia is the textbook distinction. For practical training, the answer is "train hard, enough sets, consistently".

How exrsz handles volume

exrsz sets your weekly lifting volume from your goal, level, schedule and equipment, balances it against your running in the same plan, and adapts each week to how you actually trained. Miss a session and it reshuffles the week instead of piling the sets onto the next one.

FAQ

How many sets per workout should I do?

Most people do well with about 12 to 25 total hard sets per workout, or roughly 4 to 10 sets per muscle group. Work backward from a weekly target of about 10 to 20 sets per muscle.

How many sets per muscle group per workout?

About 4 to 10 hard sets per muscle per session is a common coaching range. If you need more than that, train the muscle more often rather than piling it into one day.

How many sets per week to build muscle?

Research shows more weekly sets lead to more growth, with diminishing returns (Schoenfeld et al., 2017). For trained lifters, a review suggested 12 to 20 weekly sets per muscle as a sound target (Baz-Valle et al., 2022); beginners can grow on less.

Do warm-up sets count?

No. Only working sets taken reasonably close to failure count toward your weekly volume.

Should runners do fewer sets?

Usually, especially for legs. Running already loads the legs and uses recovery, so most runners do well with fewer lifting sets, focused on the main lifts.