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Exercise guide

Dumbbell bench press: muscles worked and how to do it

The dumbbell bench press is a flat bench press with a dumbbell in each hand instead of a barbell. Each arm works on its own and the dumbbells can travel a little lower. GymTribe's library lists it as Flat Dumbbell Bench Press, with the mid chest as its target muscle.

Illustration of a dumbbell bench press, showing the start and end positions

How to do a dumbbell bench press

  1. Sit on the end of the bench with the dumbbells resting on your thighs.

  2. Lie back and use your knees to help bring the dumbbells up over your chest.

  3. Set your feet flat and pull your shoulder blades back and down.

  4. Press the dumbbells up until your arms are straight, palms facing your feet.

  5. Lower them under control to the sides of your chest, elbows angled partway toward your body.

  6. Press back up, bringing the dumbbells toward each other over your chest.

These steps describe common technique. If something hurts, stop and ask a qualified coach or clinician.

Common dumbbell bench press mistakes

  • Dumbbells drifting toward your face

    Lower them to the level of your mid chest, not your shoulders.

  • Elbows flared straight out

    Keep them at an angle to your body, as in a barbell bench press.

  • Dropping the dumbbells at the end

    Bring them back to your chest, then to your thighs as you sit up.

  • One arm finishing first

    Press both together. If one side falls behind, choose a weight both can finish.

How to track your dumbbell bench press

Log the weight and reps of every set. Over a few weeks, the heaviest weight you lift and your estimated one-rep max show whether you are getting stronger, even when your sets use different rep counts.

Estimated 1RM, Epley formula

30 kg × (1 + 8 ÷ 30) ≈ 38 kg

A set of 8 at 30 kg estimates a one-rep max of about 38 kg.

Dumbbell bench press questions

What muscles does the dumbbell bench press work?

Mostly the chest, with the front delts and triceps, and more work for the small shoulder muscles that keep each dumbbell steady. In GymTribe's muscle map, each set of Flat Dumbbell Bench Press counts toward the mid chest.

Dumbbell or barbell bench press?

The barbell lets you lift more in total. Dumbbells let each arm work on its own and allow a slightly deeper range. Many programs use both. GymTribe tracks them separately.

Do I log the weight of one dumbbell or both?

Log the weight of one dumbbell, the usual convention, and do it the same way every time so your charts stay comparable.

How do I estimate my dumbbell bench press one-rep max?

Use the Epley formula, weight × (1 + reps ÷ 30). A set of 8 at 30 kg estimates about 38 kg. The 1RM calculator on this site does the sum for any set.

How do I track my dumbbell bench press in GymTribe?

Log each set's weight and reps under Flat Dumbbell Bench Press. Every session adds a point to its charts: heaviest weight and estimated 1RM, best set volume and most reps, and best session volume and max session reps. A New PR alert appears when a set beats your heaviest weight, estimated 1RM or rep record.

More mid chest exercises in GymTribe

GymTribe counts these toward the mid chest too. The ones with a guide are linked.

More chest guides

All exercise guides →

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