Last updated: September 2026
How long do bodybuilders workout? Most bodybuilders lift for 1 to 2 hours a day, 4 to 6 days a week. A typical session is 60–90 minutes of weight training, which adds up to roughly 5–9 hours a week. Competitors in contest prep add cardio on top, which is where the “all day in the gym” reputation comes from.
The hours are only half the answer, though. What actually drives muscle growth is how many hard sets each muscle gets per week. Session length is mostly a result of that number, as you’ll see below.
How Many Hours Do Bodybuilders Work Out a Day?
It depends on experience and the time of year. These are typical ranges, not rules:
| Who | Per session | Days per week | Hours per week |
|---|---|---|---|
| Beginner | 45–60 min | 3–4 | about 2–4 |
| Recreational / intermediate natural | 60–90 min | 4–5 | about 4–7 |
| Competitive bodybuilder, off-season | 75–120 min | 5–6 | about 6–12 |
| Contest prep (lifting + cardio) | 60–90 min lifting + 30–60 min cardio | 5–6 lifting, cardio most days | about 10–15 |
So when people ask how long bodybuilders spend in the gym, the honest answer is usually 1–2 hours a day. Longer days mostly mean cardio has been added, or the day is split into two sessions, not that someone is lifting for four hours straight.
How Many Days a Week Do Bodybuilders Train?
Most bodybuilders lift 4 to 6 days a week and take at least one full rest day. Seven hard lifting days a week is rare, even among professionals, because each muscle still needs time to recover between sessions.
The number of days matters less than you might think. A 2026 meta-regression of 67 studies found that weekly training volume clearly drove muscle growth, while training frequency on its own had little measurable effect on muscle size [Pelland et al., 2026]. Bodybuilders train 4–6 days mainly because it’s the easiest way to fit a lot of sets into sessions that stay a manageable length.
Related Reading
How Many Rest Days a Week Do You Need? (Complete Guide) →Where the Time Goes in a 60–90 Minute Session
Working sets are only part of a session. A typical 75-minute bodybuilding workout breaks down roughly like this:
- Warm-up (10–15 min): general movement plus lighter ramp-up sets of the first exercise.
- Main compound lift (20–30 min): squats, presses, rows or deadlift variations, with 2–3 minutes of rest between sets.
- Accessory work (20–30 min): two or three exercises hitting the same muscles from other angles, with 60–120 seconds of rest.
- Isolation “finishers” (10–15 min): higher-rep work for smaller muscles like arms, calves or rear delts.
Rest periods are what stretch a session. A workout with 20 working sets can easily take 90 minutes, not because the volume is excessive, but because heavy sets need proper rest. Cutting rest too short to save time usually means lifting less weight on the following sets. For non-bodybuilders, here’s how long a workout should be by goal, with a simple way to estimate your own session length.
The Real Metric: Weekly Sets Per Muscle Group
The American College of Sports Medicine’s 2026 position stand, based on 137 systematic reviews, found that muscle growth was greater with 10 or more sets per muscle group per week [ACSM, 2026]. More volume keeps adding growth beyond that, but with diminishing returns: each extra set adds a little less than the one before [Pelland et al., 2026].
In practice, many bodybuilders land somewhere around 10–20 hard sets per muscle per week, with more for larger or lagging muscles and less for small muscles that already get indirect work from compound lifts (biceps from rows, triceps from presses).
Here’s how that turns into session length:
- Train chest twice a week with 6 sets each time and you’re at 12 weekly sets.
- Six sets with proper rest takes roughly 20–25 minutes.
- Put three or four muscle groups in one session and you’re at 60–100 minutes.
The session length is an output of the weekly volume, not the input. That’s why two lifters can both train 90 minutes a day and get very different results.
Find Your Weekly Set Target
Enter your weekly sets for a muscle group and the Training Volume Calculator shows where they sit against minimum, optimal and maximum recoverable volume landmarks.
Calculate Your Volume →Session Length by Training Split
The split decides how the weekly volume is divided, and so how long each day takes:
| Split | Days per week | Typical session | Notes |
|---|---|---|---|
| Push/pull/legs (run twice) | 6 | 60–80 min (legs up to 90) | Each muscle trained twice a week. Common for intermediate and advanced lifters. |
| Body part (“bro”) split | 5 | 45–90 min | One or two muscle groups a day. Arm day is short, leg and back days run long. |
| Upper/lower | 4 | 60–90 min | More work per session, more rest days. Popular with natural lifters. |
| Full body | 3 | 60–75 min | Best starting point for beginners. |
The more days you train, the shorter each session can be, because the same weekly sets are spread across more days.
Related Reading
6 Day Gym Workout Schedule: Full PPL Split →Related Reading
How Many Squats Should I Do a Day? (Sets, Reps & Volume) →Off-Season vs Contest Prep
A bodybuilder’s schedule changes through the year.
Off-Season (Building Phase)
This is when lifting volume and session length are highest, because the goal is adding muscle. Sessions often run 75–120 minutes for competitors, and food intake is above maintenance to support training and recovery.
Contest Prep (Cutting Phase)
Lifting usually continues at a similar weekly volume while calories come down, and cardio gets added. Some competitors use “two-a-days”: a cardio session in the morning and lifting later in the day, or cardio straight after lifting. That’s how total daily training can reach 2–3 hours. It isn’t 3 hours of lifting. It’s lifting plus cardio during a hard diet, for a limited number of weeks.
Bodybuilders vs Powerlifters: Who Trains Longer?
Session for session, powerlifters often spend as long or longer in the gym, even though they do fewer exercises. Heavy sets close to a one-rep max need longer rest (often 3–5 minutes) and long warm-ups to work up to the top weight. Bodybuilders do more exercises and more total sets, but with shorter rests on most of them. Both commonly end up in the 60–120 minute range.
Related Reading
Powerlifting vs. Bodybuilding: Key Differences Explained →Is 2 Hours in the Gym Too Much?
Not automatically. There’s no proven minute mark where a workout stops working. But when a lifting session regularly runs past 2 hours, it usually means one of three things: very long rests, a lot of time between sets (phone, chatting, waiting for equipment), or more sets in one session than you can do well. Low-quality “junk” sets add fatigue without adding much growth.
Four hours or more of daily gym time is usually lifting plus cardio, or two separate sessions. For almost everyone outside contest prep, that’s more than recovery can keep up with. Spending 6–7 hours a day in the gym has no training benefit. It just raises the risk of overuse injuries and burnout.
How hard you train matters more than how long. A focused 60-minute session with sets taken close to failure will usually do more than 2 unfocused hours.
Related Reading
Signs of Overtraining: Symptoms, Causes & How to Recover →Related Reading
Training to Failure: Does It Actually Build More Muscle? →How Long Should You Train?
If you’re not competing, you don’t need to match a pro’s hours. You need to match the weekly volume logic.
For most intermediate lifters building muscle:
- 4–5 days per week
- 60–75 minutes per session
- Around 10–16 hard sets per muscle group per week, spread across sessions
That’s enough to drive steady progress. Adding hours on top mostly adds fatigue you then have to recover from, because each extra set adds less than the last.
Related Reading
How Often Should I Workout to Build Muscle? →Nutrition: The Other Variable That Determines Session Quality
Long, hard sessions only work if your eating supports them. Bodybuilders in an off-season aren’t training 90 minutes on 1,800 calories. They eat above maintenance to fuel performance and recovery.
If your workouts feel shorter or weaker than they should, undereating is one of the first things to check. Your TDEE (Total Daily Energy Expenditure) is the baseline your intake has to match or beat before your body can add muscle.
Are You Eating Enough to Train Hard?
Calculate your TDEE to see your daily calorie needs based on your weight, height, age, and activity level. If you’re consistently below this number, session quality will suffer.
Calculate Your TDEE →The Bottom Line
Bodybuilders work out about 1–2 hours a day, 4–6 days a week, with most lifting sessions lasting 60–90 minutes. Sessions are that long because 10–20 hard sets per muscle per week, with proper rest, takes that much time. Contest prep adds cardio, not extra hours of lifting.
For your own training, forget matching the hours. Hit the right weekly volume per muscle with real effort, and a well-planned 65-minute session will beat 2 unfocused hours.
Plan Your Bulk: Calories + Volume Together
Use the Bulk Calculator to get your calorie surplus target for muscle building, then pair it with your volume target from the Training Volume Calculator for a complete off-season plan.
Calculate Your Bulk Calories →Frequently Asked Questions
Is 2 hours at the gym too much for bodybuilding?
Not necessarily, but it’s the upper end. Most productive bodybuilding sessions take 60–90 minutes. If yours regularly pass 2 hours, check your rest times and whether some sets are low-effort filler. Splitting the work across more days usually gives better sessions than one very long one.
Is 4 hours at the gym too long?
For almost everyone, yes. Four hours is usually lifting plus cardio or two separate sessions, which a few competitors use briefly during contest prep. For regular training, that much daily volume is more than most people can recover from, and progress tends to stall rather than speed up.
How many days a week do bodybuilders train?
Most bodybuilders lift 4–6 days a week and take at least one full rest day. Common setups are push/pull/legs over 6 days, a 5-day body part split, or upper/lower over 4 days. Research suggests weekly volume matters more for muscle growth than the number of days.
How many hours a week do bodybuilders train?
Roughly 5–9 hours of lifting a week for most serious recreational bodybuilders, and about 6–12 hours for competitors in the off-season. During contest prep, adding cardio can push total training time to 10–15 hours a week for a limited period.
How long do bodybuilders spend in the gym each day?
Usually 1–2 hours in total. That includes 10–15 minutes of warm-up, 45–90 minutes of lifting, and in some phases 30–60 minutes of cardio. Time spent between sets, moving between equipment and cooling down is why gym time is longer than the working sets alone.
Can you build muscle in 45 minutes a day?
Yes. What matters is getting enough hard sets per muscle each week. Four or five focused 45-minute sessions, with supersets for small muscles and timed rests, can reach 10+ weekly sets per muscle group, which is where research shows good growth.
Sources: Pelland JC et al. The Resistance Training Dose Response: Meta-Regressions Exploring the Effects of Weekly Volume and Frequency on Muscle Hypertrophy and Strength Gains. Sports Medicine, 2026 (PMID 41343037). Currier BS et al. American College of Sports Medicine Position Stand: Resistance Training Prescription for Muscle Function, Hypertrophy, and Physical Performance in Healthy Adults. Medicine & Science in Sports & Exercise, 2026 (PMID 41843416).
