How long should a gym workout be?

45 to 60 minutes is the right length for most people. That's enough time to warm up, do 4 to 6 exercises with proper rest between sets, and leave. If you only have 30 minutes, you can still get a good session in. If you're regularly past 90 minutes, something is usually off.

What fits in an hour

Here's a rough split for a 60 minute lifting session:

• 5 to 10 minutes warming up
• 40 to 45 minutes of working sets
• 5 minutes to finish up, stretch or walk

Working sets take longer than people expect, because the rest between them is the real time cost. If you rest 2 to 3 minutes between heavy sets, 15 to 20 sets will fill most of an hour on their own.

When 30 minutes is enough

A short workout works fine if you cut the fluff and keep it simple. Pick 3 or 4 exercises, do 2 to 3 hard sets of each, and skip the extras. Supersetting two exercises that don't compete (say, a row and a push-up) saves time without wrecking your performance.

A half hour you actually do beats an hour you keep postponing. If this is your situation, is a 10-minute workout worth it goes into how little you can get away with.

League of Fitness suits the short-session case. You're matched each day with someone near your level, and a lifting session synced from Apple Health counts, so a focused 30 minutes is a legitimate way to play your side of the day.

Why longer isn't better

Past about 75 to 90 minutes, most people's sets get sloppier and their focus drops. Research on training volume points to the number of hard sets per muscle per week mattering, not how long you stay in the building. A lot of long sessions are just phone time between sets.

There's one fair exception. If you're doing a heavy powerlifting style session with long rests of 4 or 5 minutes, it will take longer, and that's fine. Time spent resting before a heavy set isn't wasted.

If your workouts keep running long

Check three things:

1. Rest timers. Set one and stick to it.
2. Number of exercises. More than 6 or 7 in a session usually means some of them are filler.
3. Waiting for equipment. Pick a backup exercise so you don't stand around.

If you'd rather do more total work, spread it over more days. Four 45 minute sessions beat two 90 minute ones.