Pull Ups vs Chin Ups: Which Is Better?
Neither is better overall; they work almost the same muscles. In a muscle-activity study, both hit the lats hardest. Chin-ups, with palms facing you, worked the biceps and chest significantly more. Pull-ups, with palms facing away, worked the lower trapezius more. Most lifters do best including both, or picking based on their goal.
The grip difference is smaller than gym arguments suggest. Here's what the research measured, how other grips compare, and how to choose the right one, plus how to get your first rep if you can't do one yet.
What Is the Difference Between Pull Ups and Chin Ups?
The grip. A pull-up uses an overhand grip, palms facing away, usually a bit wider than shoulder width. A chin-up uses an underhand grip, palms facing you, usually about shoulder width. That small change shifts how much your biceps and upper back contribute, and most people find chin-ups slightly easier.
Both are vertical pulling exercises where you lift your whole body until your chin clears the bar. Both train the lats, the large muscles that give your back its width, along with the biceps, shoulders, and muscles between your shoulder blades.
In the study below, the elbow also moved through slightly more range of motion in the chin-up, about 101 degrees compared with 93 degrees in the pull-up.
Which Muscles Do Pull Ups and Chin Ups Work?
Mainly the lats, followed by the biceps and the muscles around your shoulder blades. A study measuring electrical activity in seven muscles found the lats were by far the most active in both exercises. The chest, lower back and abs also contributed, mostly to stabilize your body as you pull.
That 2010 study in the Journal of Strength and Conditioning Research measured 25 young adults. Here's how hard each muscle worked across the exercises, as a percentage of its maximum effort:
| Muscle | Activity across both exercises | Which grip worked it more |
|---|---|---|
| Lats | 117% to 130% | Similar |
| Biceps | 78% to 96% | Chin-up |
| Infraspinatus (rear shoulder) | 71% to 79% | Similar |
| Lower trapezius | 45% to 56% | Pull-up |
| Chest (pec major) | 44% to 57% | Chin-up |
| Lower back (erector spinae) | 39% to 41% | Similar |
| Abs (external oblique) | 31% to 35% | Similar |
Values above 100% are possible because each muscle's activity was compared with a static maximum hold, which a moving exercise can exceed.
Are Chin Ups Better for Biceps?
Yes, a little. The biceps were significantly more active in chin-ups than pull-ups, so if bigger arms are a goal, chin-ups give your biceps more work alongside your back. Pull-ups still train the biceps quite hard, just not as much. Neither replaces direct arm work if your arms are a priority.
The chest was also more active in chin-ups. That doesn't make chin-ups a chest exercise, but it shows the underhand grip spreads the effort across more of the upper body. For a true chest builder with no equipment, see what muscles push ups work.
If you want to build your arms more directly, adding curls alongside chin-ups gives you more weekly volume for the biceps. Our guide on how many reps and sets to build muscle shows how to count your weekly sets per muscle.
Are Pull Ups Better for Your Back?
For the lower trapezius, yes. The overhand pull-up worked the lower traps significantly more, which help pull your shoulder blades down and back, the same muscles that fixing rounded shoulders depends on. For the lats, the biggest back muscles, the two exercises were similar. So if you want an all-around back builder, both work well.
A second study looked at more grips. The 2017 study in the Journal of Electromyography and Kinesiology compared underhand, overhand, neutral (palms facing each other) and rope pull-ups in 19 strength-trained men. Activation was similar across grips overall, with the overhand grip working the middle traps more than the neutral grip.
The takeaway: grip changes shift the emphasis a little, but every version is a solid back exercise.
Should You Add Weight to Your Pull Ups?
Once you can do more than about 12 to 15 good reps, adding weight is a good way to keep progressing. For muscle growth, high-rep bodyweight sets and heavier weighted sets both work if you push close to failure. For maximal strength, heavier weighted sets are more effective.
A 2017 meta-analysis in the Journal of Strength and Conditioning Research found heavy loads produced greater one-rep max gains, while muscle growth was similar across a wide range of loads. A dip belt or a dumbbell held between your feet are simple ways to add load.
A practical mix is one heavier day of weighted reps and one lighter day of bodyweight sets each week.
Which Should You Do, Pull Ups or Chin Ups?
Choose based on your goal and comfort. Chin-ups suit beginners and anyone who wants more biceps work. Pull-ups suit lifters who want more upper and middle back emphasis. Neutral grips are a good option if either one bothers your shoulders or elbows. Rotating grips across the week gives you the benefits of each.
| Your goal | Best choice |
|---|---|
| First reps, building strength | Chin-ups (usually easier) |
| Bigger biceps alongside your back | Chin-ups |
| More upper and mid-back emphasis | Pull-ups |
| Shoulder or elbow discomfort | Neutral grip |
| Overall back development | Alternate grips |
Muscle growth comes from total weekly sets taken close to failure, so the version you'll do consistently and push hard matters more than the exact grip.
How Do You Get Your First Pull Up or Chin Up?
Build up with easier versions and practice often. Start with chin-ups, since most people find them easier. Use resistance bands or an assisted machine, slow negatives where you lower yourself from the top, and rows to build pulling strength. Practicing several times a week helps strength come faster.
A simple progression:
- Rows and lat pulldowns to build the base muscles.
- Assisted reps with a band or machine, gradually using less help.
- Negatives: jump or step to the top, then lower yourself slowly over 3 to 5 seconds.
- Singles: once you get one rep, do several single reps with rest between them.
Strength gains rise with how often you train a movement, according to a 2026 meta-regression in Sports Medicine, so short, frequent practice sessions help. Our guide on how to improve grip strength helps if your hands give out first.
FAQ
Are chin ups easier than pull ups?
For most people, yes. The underhand grip lets your biceps help more, so many lifters can do a few more chin-ups than pull-ups. That makes chin-ups a good place to start if you're working toward your first rep.
How many pull ups should you be able to do?
There's no single standard. Being able to do several controlled reps with full range of motion is a good sign of relative strength. Focus on adding reps or weight over time rather than hitting a specific number.
Can you build a big back with only vertical pulls?
They're excellent for back width, but adding rows trains the back from a different angle and helps balance your upper body. Combining vertical pulls with rows is a simple way to cover the whole back.
Should you do pull ups or chin ups first in a workout?
Do whichever is your priority first, when you're freshest. If you want to improve pull-up strength, put them early in your session. Our guide on full body vs split workouts shows how to fit pulling work into your week.
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