The Best 4 Day Workout Split (3 Templates That Actually Work)

Quick answer: A 4 day workout split trains four times a week and hits every major muscle roughly twice, which is the frequency most muscle-growth research supports. The three templates worth running are upper/lower twice through, a push/pull/legs plus upper hybrid, and a four-way body-part rotation. Upper/lower is the safest default.

Four days is where most people land eventually. Three starts to feel light once you have been lifting a year, and six looks great written down until the first Thursday you have plans.

Four fits around a job, leaves three rest days, and still trains every muscle twice. The harder question is which four days.

Why is 4 days a week the sweet spot for most lifters?

Four sessions is the smallest number of days that comfortably trains every muscle twice a week, and twice a week is the frequency the research keeps pointing at.

The 2016 meta-analysis by Schoenfeld, Ogborn and Krieger in Sports Medicine found that major muscle groups should be trained at least twice per week to maximise growth. Training something once a week leaves results on the table.

A 2019 meta-analysis in the Journal of Sports Sciences then found no meaningful difference between higher and lower frequencies once weekly volume was matched. Twice a week clears the bar. Training more often than that mostly buys you shorter sessions rather than extra growth.

So four days gets you over the line with three days off for recovery, family, and the sessions you inevitably miss. If you are still deciding on your weekly count, how many days a week you should go to the gym covers the trade-offs at two, three, five, and six.

What are the three main 4 day split templates?

There are dozens of names for four-day plans but only three real shapes, and everything else is a variation on one of them.

Template 1: Upper / Lower x2 (the default)

Two upper days, two lower days. Every muscle gets exactly two sessions, volume is easy to count, and the sessions are around an hour.

Upper A

Lower A

Upper B

Lower B

That is roughly 10 to 14 hard sets per muscle per week, which is a sensible place to start. Our full upper/lower split guide goes deeper on progressing this one.

Template 2: Push / Pull / Legs + Upper (the hybrid)

Run push, pull, legs, then a fourth day that mops up whatever the first three under-served, usually an upper day weighted toward shoulders and arms.

The catch is legs. In this layout your quads and hamstrings get one session a week unless you tack leg work onto the fourth day. Upper body ends up at two or three exposures, legs at one.

That makes the hybrid a fine pick if your goal is upper-body size and your legs are already ahead, and a poor pick if you want balanced development. Our push pull legs vs upper/lower comparison breaks down where each structure wins.

Template 3: The four-way body-part rotation

The old-school option, and the one most people picture when they think about splits.

Each muscle gets one dedicated session, but arms and delts pick up a second dose on day four, and chest and back both get indirect work from the pressing and pulling elsewhere.

It is more defensible than a six-day bro split because nothing is truly trained once with no overlap. It is still the weakest of the three for legs, which see one session, and for anyone who wants clean twice-weekly frequency across the board.

Where it genuinely wins: you can attack one area with real intent, and the sessions are simple to remember. Plenty of people stay consistent on this split precisely because it asks nothing of their planning.

Which 4 day split should you pick?

Match the template to your goal, not to what looks hardest.

If that table looks lopsided, that is the honest answer. The best 4 day split for muscle for most people is upper/lower, because it delivers twice-weekly frequency without any thinking. The other two are choices you make for a specific reason.

Experience matters less than people assume here. A beginner on upper/lower and an intermediate on upper/lower run the same shape; the intermediate just carries more sets and a slower rate of progress.

How many sets per muscle should a 4 day workout routine hit?

Start near 10 hard sets per muscle per week and add from there only if you are recovering. That is a starting dose. Plenty of lifters end up well above it.

On a four-day upper/lower plan that maths out cleanly:

Add a set or two per muscle every few weeks while the weights keep moving. When they stop, stop adding. Our guide to how many sets per week to build muscle covers where the useful ceiling sits and how to spot junk volume.

Before you commit to a template, you can get a free private link to the workout plan optimizer, which maps what your four days actually hit and flags the muscle that quietly ends up at three sets a week.

How should you schedule the four days around rest?

Never train the same region on back-to-back days, and put your longest gap after your heaviest session.

Three schedules that work:

• Mon / Tue / Thu / Fri. The default. Two on, one off, two on, two off. Weekends free.
• Mon / Wed / Fri / Sat. Better if you struggle with consecutive training days midweek.
• Rolling: train, train, rest, repeat. Days drift across the week, but a missed session shifts the sequence instead of destroying the plan.

The rolling version is underrated if your week is unpredictable. You stop thinking in Mondays and start thinking in sessions, which means a busy Tuesday costs you nothing.

One rule holds across all three: whichever day contains your heaviest squat or deadlift should have a rest day after it, not another lower session. For more on spacing sessions per muscle, see how often to train each muscle.

Why do most 4 day splits fail on paper rather than in the gym?

Because the plan says one thing and the log says another.

Four days looks perfectly balanced when you write it out. Then eight weeks pass, you have skipped a few lower days, dropped rows when the gym was busy, and added a fourth pressing exercise because you enjoy pressing. Chest is at 12 weekly sets and hamstrings are at 4.

Nobody notices this from inside a session. You only see it in the running total, and almost nobody keeps a running total by hand.

A notebook records the session fine. What it cannot do is tell you, in February, that your back has had half the volume of your chest since December.

A simple starting plan

1. Pick upper/lower unless you have a specific reason not to. Two upper, two lower, four days, done.
2. Lock your four days before you pick exercises. Mon/Tue/Thu/Fri suits most people. Fix the schedule first so the plan survives a busy week.
3. Build A and B versions of each day. Vary the lead compound: bench on Upper A, overhead press on Upper B, squat on Lower A, deadlift on Lower B.
4. Set a weekly target near 10 hard sets per muscle and check your actual sessions deliver it, not just your plan.
5. Run it for eight weeks before judging it. Switching splits every month resets your data and hides whether anything was working.

If you already log your workouts as text

Most people running a four-day split keep it in a notes app or a notebook, one line per exercise, because that takes four seconds between sets.

That habit is right. The gap is that four months of Bench 80x8, 80x8, 80x7 lines never add themselves up, so the volume drift that quietly wrecks a split stays invisible.

Gym Note Plus is built around that habit rather than against it:

• Type your sets the way you already type them. There is no form to fill in and no exercise picker to search.
• Weekly sets per muscle, counted automatically. See whether both upper days actually balanced push and pull.
• Per-exercise charts so you can tell a stalled lift from a slow one.
• Personal records flagged as you hit them.
• Your existing notes import, so the history you already wrote comes with you.

Want to see it before committing? Paste one of your sessions into the free notes to workout translator and watch the text turn into tracked sets.

A 4 day split is the cheapest way to train every muscle twice a week. The schedule does the frequency; only your log tells you whether the volume followed.

Frequently Asked Questions

What is the best 4 day workout split?

The best 4 day workout split for most lifters is upper/lower run twice: two upper-body sessions and two lower-body sessions. This structure trains every major muscle group twice per week, keeps sessions near an hour, and makes weekly volume easy to count. Push/pull/legs plus an upper day and four-way body-part rotations are viable alternatives with specific trade-offs.

Is a 4 day split enough to build muscle?

Four days a week is enough to build muscle for beginners and intermediates. Four sessions allow every major muscle group to be trained twice weekly, the frequency the 2016 Schoenfeld meta-analysis in Sports Medicine linked to maximum growth, while leaving three rest days for recovery. Total weekly hard sets per muscle matters more than the number of days.

What is the best 4 day split for muscle growth?

For muscle growth specifically, a 4 day upper lower split works best because it distributes each muscle's weekly volume across two sessions instead of one. Aim for roughly 10 to 16 hard sets per muscle per week, spread evenly across the two relevant days, and progress by adding reps within a range before adding weight.

Should a beginner use a 4 day split?

A beginner can use a 4 day split, and upper/lower is the right version. Beginners recover quickly and benefit from frequent practice of the main lifts. Three full-body days a week remains the simplest starting point, but a four-day upper/lower split works well for anyone who can reliably attend four sessions and wants more volume per muscle.

Which days should you train on a 4 day split?

Monday, Tuesday, Thursday and Friday is the standard 4 day split schedule, giving two training days, a rest day, two more training days, then a two-day weekend break. Wednesday, Friday, Saturday variations work equally well. The only rule that matters is avoiding the same body region on consecutive days so each muscle gets 48 hours of recovery.

Can you do a 4 day push pull legs split?

Push/pull/legs runs on a three-day cycle, so a four-day week gives you push, pull, legs and then a fourth session, usually an extra upper day. That layout leaves legs with a single weekly session while upper body gets two or three. It suits lifters prioritising upper-body size, not those wanting balanced development.

Final Takeaways

• Four days is the smallest schedule that trains everything twice a week. That is why it works for so many people.
• Upper/lower twice through is the default answer. Pick another template only for a specific reason.
• PPL plus upper shortchanges legs. Fine for an upper-body priority, poor for balance.
• Start near 10 hard sets per muscle per week and add slowly while the weights keep moving.
• Fix the schedule before the exercises. A plan you can keep beats a better plan you cannot.
• Track weekly sets per muscle. The split handles frequency; only your log catches volume drift.