Rest Time Calculator
How long should you rest between sets? It depends on your goal and the exercise. Get the rest period the research supports, from heavy squats to biceps curls.
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Rest between sets
| Goal | Compound | Isolation |
|---|
Rest until you can match the reps you're aiming for. If your reps drop a lot from set to set, rest longer.
How to use it
- Pick your goal. Building muscle, getting stronger, power or endurance.
- Choose whether the exercise is compound (several joints) or isolation (one joint), and how long you've been training.
- Use the rest range between your sets. The table shows every combination.
How it's calculated
The ranges. From the American College of Sports Medicine’s position stand on resistance training (2009):
| Goal | Compound | Isolation |
|---|---|---|
| Build muscle | 2–3 min | 1–2 min |
| Get stronger | 2–3 min (3 min or more with heavy loads once experienced) | 1–2 min |
| Power and speed | 2–3 min | 1–2 min |
| Muscular endurance | under 90 s | under 90 s |
“Experienced” here means about a year or more of training, when heavy sets of 1 to 6 reps become a regular part of your program.
Why longer rest helps growth. Short rests cut the reps you can do in the next set. Singer et al. (2024) pooled nine studies and found a small advantage for rests longer than 60 seconds, but no clear benefit beyond 90 seconds. So for muscle growth, a minute or two is plenty on most exercises.
Limits. These ranges are starting points. Heavier loads, bigger muscles and harder sets need more rest. If your reps drop sharply from one set to the next, rest longer.
Sources
- American College of Sports Medicine (2009). Progression models in resistance training for healthy adults. Medicine & Science in Sports & Exercise, 41(3), 687–708.
- Singer, A., Wolf, M., Generoso, L., et al. (2024). Give it a rest: a systematic review with Bayesian meta-analysis on the effect of inter-set rest interval duration on muscle hypertrophy. Frontiers in Sports and Active Living, 6, 1429789.
Questions
How long should I rest between sets to build muscle?
At least a minute. A 2024 meta-analysis found a small benefit to resting more than 60 seconds, and no clear difference beyond 90 seconds. For heavy compound lifts, 2 to 3 minutes helps you keep your reps up.
How long should I rest for strength?
2 to 3 minutes on big lifts, and 3 minutes or more once you're lifting heavy (1 to 6 reps) with some experience. Isolation exercises need 1 to 2 minutes.
Is shorter rest better for burning fat?
Shorter rest makes a session feel harder, but it usually means fewer reps per set. Your diet decides fat loss far more than your rest periods.
Should I time my rest?
Timing keeps you consistent, which makes progress easier to track. Treat the range as a guide and rest a bit longer on days you feel flat.
Updated November 9, 2026.