For most men over 30, a good workout lasts 20 to 45 minutes. Not two hours. If your session runs longer than that, you are probably resting too much, scrolling too much or having a long chat with the guy who owns the squat rack. Short and consistent beats long and occasional.
Need a plan to fill those minutes? Start the 4-week restart plan.
Does a workout need to be an hour?
No. The Physical Activity Guidelines for Americans say any amount of activity has health benefits, and the old rule that exercise must come in bouts of at least 10 minutes was dropped. Short bouts count.
So the 20 minutes you have before the kids wake up are not "not enough." They are a workout. Treat them with respect.
What is a good length for a strength session?
Thirty to forty minutes covers it. That is time for a warm-up, five or six exercises of two or three sets each, and a bit of rest between sets.
- Warm-up: 5 minutes.
- Main lifts: 20 to 30 minutes.
- Finish: a carry, a stretch, or nothing. Nothing is allowed.
If you are strapped for time, circuits of four exercises can fit in 20 minutes. See 20-minute workouts for busy dads.
Why do some workouts drag on?
Because gyms are social events with weights in them. Here is where the other 75 minutes went:
- Scrolling between sets.
- Waiting for a machine someone has claimed since 2019.
- Resting for four minutes because the playlist was good.
- A thorough conversation about last night's game.
Time how long you actually spend moving. Most men are surprised, and a little embarrassed.
Can you work out too long?
You can. Marathon sessions raise soreness and fatigue, and they make it harder to turn up next time. More isn't better if it wrecks the next three days. Soreness is normal, but being flattened for a week is a sign you overdid it. See sore for days after working out.
If you are new or returning, keep sessions short while your body adapts. You can always build up later.
What about cardio?
Aim for walks of 20 to 30 minutes on non-lifting days, or longer if you enjoy them. Easy cardio doesn't need a stopwatch or a motivational speech. Read whether walking is enough to lose weight.
How do you pick a length that works?
Pick the length you can repeat. If 30 minutes is realistic three times a week, that beats 90 minutes once a month. Habits are built by repetition, not by endurance. A University College London study found a new habit takes a median of 66 days to feel automatic, so you want a workout so manageable it doesn't scare you.
The bottom line
Thirty minutes. Warm up, lift, go home. Anything longer is optional and probably a podcast. Use the restart plan and spend the saved time with your family, or your phone, you animal.
Go train, FATBOY.
This article is general information, not medical advice. If you have a health condition, check with your doctor before starting.
- workout length
- beginners