Arms · Dumbbell
Dumbbell Single Arm Tricep Extension
How to do the dumbbell single arm tricep extension, the muscles it works, and the mistakes to avoid. Pulled straight from the Kovo app's exercise library.

- Equipment
- Dumbbell
- Difficulty
- Intermediate
- Logged as
- Weighted reps
- Movement
- Extension
- Mechanic
- Isolation
How to do it
Hold a dumbbell overhead with one hand, elbow bent and close to your ear. Extend your arm fully, then lower the dumbbell behind your head under control. Keep your core tight to avoid arching.
- 1Feel your triceps working as you extend the dumbbell overhead
- 2Keep your elbow pointing up and stable to isolate the muscle
- 3Squeeze at the top and lower under control
Common mistakes
- Avoid letting your elbow flare out or move forward
- Don't arch your back; keep your ribs down and core tight
- Avoid bending your wrist; keep it straight
Muscles worked
The dumbbell single arm tricep extension mainly works the triceps, with the lower chest assisting.
- TricepsPrimary
- Lower ChestSupport
- ForearmsMinor
Dumbbell Single Arm Tricep Extension strength standards
See how your dumbbell single arm tricep extension ranks, from Bronze to Champion. These are the same standards the Kovo app uses to rank your lifts.
Bronzee1RM40 lb
Silvere1RM67.5 lb
Golde1RM105 lb
Platinume1RM145 lb
Diamonde1RM170 lb
Champione1RM190 lb
Find your rank
Enter your best set. We estimate your 1RM and match it to a tier.
Kovo tracks this rank automatically as you train, across every lift, and levels you up as you get stronger.
Kovo programs the dumbbell single arm tricep extension for you and tracks it every session.
We build your whole program, drop the right lifts into each workout, and adjust your weights as you get stronger. Free on iOS and Android.
More triceps exercises
- How to do the bent-over tricep extension
- How to do the crossbody tricep extension
- How to do the cable katana tricep extension
- How to do the cable single arm tricep extension
- How to do the kickback
- How to do the lying tricep extension
Last reviewed April 2026.
