Barbell Curl — how to, muscles worked, alternatives

How to do the Barbell Curl

Stand with your feet hip-width apart, holding a barbell with palms up.
Let the bar hang, elbows near your sides, and wrists straight.
Pull the bar up by bending your elbows, keeping your upper arms still.
Lift until your forearms are upright, then slowly lower it until your elbows are fully extended.
Repeat the movement, focusing on a smooth, controlled lift and lower.

Full technique — 6 steps

Stand tall with feet about hip width apart, holding a barbell with an underhand grip.
Let the bar hang against your thighs with wrists straight and elbows close to your sides.
Set your ribs down and keep your torso upright without leaning back.
Curl the bar upward by bending your elbows while keeping your upper arms mostly fixed.
Raise the bar until your forearms are nearly vertical and your biceps fully shorten.
Lower the bar back to the start under control until your elbows are fully extended.

Common mistakes

Leaning back to start reps
Letting elbows drift forward
Bending wrists under the bar
Cutting the bottom short
Using hips to swing

Form cues

Keep upper arms still
Curl through the pinkies
Wrists stay straight
Stand tall throughout

Compared with similar variants

	Barbell Curl	Hammer Curl	Alternating Dumbbell Curl	Incline Dumbbell Curl
Level	Beginner	Beginner	Beginner	Beginner
Technique to learn	easy	easy	easy	easy
How tiring	low	low	low	low
Elbow	moderate	low	low	low
Wrist	low	low	low	—
Equipment	Barbell	Dumbbells	Dumbbells	Dumbbells, Adjustable bench

An estimate from our exercise ratings, not medical advice. How we rate exercises

Substitutes by equipment

Same muscles, same movement — pick the version you have the gear for.

Where to start and where to go next

Same muscles, same movement. Too hard for now — step down; once it gets easy — step up.

Easier Alternating Machine Biceps Curl Beginner
Easier Barbell Reverse Concentration Curl Beginner
This exercise Barbell Curl Beginner
Harder Bent Over Barbell Curl Intermediate
Harder Single Arm Barbell Curl Intermediate

Too hard for now? Start with the Barbell Reverse Concentration Curl.

Quick answers

What muscles does the Barbell Curl work?

Primary: Biceps 10/10. Also works: Forearms 6/10.

Which joints does the Barbell Curl load?

Elbow: moderate, Wrist: low. Elbow — lighter options: Hammer Curl, Alternating Dumbbell Curl, Incline Dumbbell Curl.

When should I do the Barbell Curl in a workout?

Finisher. Goes last, once the heavy work is done. ≈ 6 min with rest.

How many sets and reps of the Barbell Curl?

Strength: 4–5 sets of 4–6 reps, rest 2 min, 1–2 reps in reserve. Muscle growth: 3–4 sets of 8–12 reps, rest 1 min 15 s, 2–3 reps in reserve. Endurance: 2–3 sets of 15–20 reps, rest 45 s, 3–4 reps in reserve.

What can I do instead of the Barbell Curl?

Dumbbells: Alternating Dumbbell Curl, Dumbbell Curl. Resistance bands: Resistance Band Spider Curl, Squatting Resistance Band Curl. No equipment: EZ Bar Spider Curl, Leg Resisted Biceps Curl. Kettlebell: Incline Bench Kettlebell Preacher Curl, Kettlebell Concentration Curl.