Guides · 5 min read
How many sets and reps? A plain-English guide
There's no single right answer, which is why the internet argues about it. But there is a range that works for most people, and it's wider than you think.
Reps: a wide range works
- Muscle size: research shows muscle grows across a broad range, from about 5 to 30 reps a set, as long as sets are taken fairly close to failure. Most people find 8 to 15 the most practical on machines.
- Strength: heavier sets of about 3 to 8 reps build the most strength in that lift.
- Machines and small muscles often feel better at the higher end: 10 to 20.
Sets: count them per muscle, per week
A useful starting point is about 10 hard sets per muscle group per week, spread over two or more sessions. Beginners grow on less. Experienced lifters often need more, but more isn't automatically better; recovery has to keep up.
How close to failure
"Hard set" means you finished within about one to three reps of not being able to do another good rep. Going all the way to failure on every set isn't necessary and makes recovery harder, especially on big lifts.
A simple default
| Goal | Reps | Sets per muscle per week | Effort |
|---|---|---|---|
| Build muscle | 8 to 15 | About 10 | 1 to 3 reps short of failure |
| Get stronger | 4 to 8 on main lifts | About 6 to 10 | 2 to 3 reps short |
| Just starting | 10 to 12 | About 6 | 2 to 3 reps short |
Starting points, not prescriptions.
What matters more than the numbers
Doing it consistently, and doing a little more over time. A program you follow for six months beats a perfect one you quit after three weeks.
General information about training, not medical or personalised advice. If you have an injury or a health condition, check with a doctor or physiotherapist first.