You can build stronger arms with one kettlebell, and you don't need a rack or a cable stack to do it. This kettlebell arm workout hits your biceps, triceps, and forearms with the moves we coach in our own garage gyms. We'll also tell you where a bell falls short, so you know when to grab a dumbbell. Pick your moves, run the routine below, and train arms twice a week.
TLDR: A kettlebell builds strong forearms and solid biceps and triceps, especially with slow reps and rows. For the biggest arms, add dumbbells or a cable machine. Start with the horn-grip curl, overhead triceps extension, bent-over row, and suitcase carry, and train arms twice a week with a rest day between sessions.
Can a Kettlebell Really Build Your Arms?
A kettlebell is a better arm tool than most lifters expect. The thick handle works your grip hard. The offset weight makes every curl and extension a little harder to control. Both help your forearms and the muscles around your elbows.
Here's the honest part. Our lightest bell is 12 kg (26 lb), and that's heavy for curls and triceps work. Standard sizes also jump by 4 kg (about 9 lb) or more, so you can't add weight in small steps. Slow your tempo, cut the reps if your form slips, and stop a rep or two short of failure. When you need smaller jumps, a pair of dumbbells fills the gap.
Best Kettlebell Exercises for Biceps
One curl and a couple of rows cover your biceps well. Your biceps work on every pull, so rows count as arm training here.
Horn-Grip Curl
Hold the bell upright by the horns, the two sides of the handle, with both hands. Pin your elbows to your ribs and curl the bell toward your chest. Lower it for a slow three-count. The thick horns hit your forearms as hard as your biceps.
Do: 3 x 8 to 12
Bent-Over Row
Hinge at the hips with a flat back and let the bell hang from one hand. Rest your other hand on a rack or your thigh. Drive your elbow toward your hip and squeeze your shoulder blade back. Lower the bell under control.
Do: 3 x 8 to 10 per side
Gorilla Row
Stand wide with a bell on the floor under each hand and your chest tall. Row one bell to your hip while the other hand stays planted, then switch sides. Keep your hips level and don't twist. You need a pair of bells for this one.
Do: 3 x 6 to 8 per side
Best Kettlebell Exercises for Triceps
Your triceps do the work on every press and extension. These three moves load them from different angles, and none of them needs a bench.
Overhead Triceps Extension
Hold the bell by the horns with both hands and press it overhead so it hangs behind your head. Point your elbows forward and keep your ribs down. Bend your elbows to lower the bell, then straighten your arms. Go slowly, because the bell swings behind you.
Do: 3 x 8 to 10
Skull Crusher
Lie on your back with your knees bent and hold the bell by the horns over your chest. Bend only your elbows to lower the bell toward your forehead. Press it back up without letting your elbows flare. Start with a bell you can control for all your reps.
Do: 3 x 8 to 10
Close-Grip Floor Press
Lie on your back with the bell racked on your forearm. Keep your elbow close to your ribs and lower until your upper arm touches the floor. Press the bell back up. Tucking your elbow close shifts more of the work to your triceps.
Do: 3 x 8 per side
Best Kettlebell Exercises for Forearms and Grip
Carries are the simplest forearm builder you can do with a bell. They also train your trunk and shoulders, so they pay you back twice.
Suitcase Carry
Hold one bell at your side like a suitcase and walk. Stand tall, keep your shoulders level, and don't lean toward the bell. Your forearms and trunk work to keep you upright. Use your heavier bell here, since your grip can handle more than your biceps can.
Do: 3 x 30 to 40 seconds per side
Farmer Carry
Hold a bell in each hand and walk with tall posture. Take short, quick steps and keep your shoulders back. A pair doubles the grip demand. If you only own one bell, stick with the suitcase carry.
Do: 3 x 30 to 40 seconds
A Kettlebell Arm Workout You Can Run This Week
This routine takes about 25 minutes and needs one bell. Use a 12 to 16 kg bell for the curl, extension, and press, and a heavier one for the carry if you own it.
- Bent-over row, 3 x 8 to 10 per side
- Horn-grip curl, 3 x 8 to 12
- Close-grip floor press, 3 x 8 per side
- Overhead triceps extension, 3 x 8 to 10
- Suitcase carry, 3 x 30 to 40 seconds per side
Rest 60 to 90 seconds between sets. Train arms twice a week with at least a day off between sessions. When every set feels clean, add a rep per set. Once you hit the top of each range, slow your lowering to a five-count. Then move up a bell size.
Want legs and shoulders too? Our best kettlebell exercises guide covers all four muscle groups, and you can follow it with our kettlebell shoulder workout or kettlebell leg workout.
Bottom Line
If you own one bell and want stronger arms, run the routine above twice a week. Row for your biceps, extend overhead for your triceps, and carry for your forearms. If you want maximum arm size, pair your bell with dumbbells or a cable machine, since they load those muscles in smaller steps.
Need a kettlebell? Browse our Prime Kettlebells or grab a pair or set for moves like the gorilla row. Not sure which size to start with? Our kettlebell buying guide breaks it down.
Questions about picking a bell? Call us at (512) 201-4404. We're lifters too. Lift heavy, lift happy.