Dumbbell Fly
Primary
Chest
Secondary
Shoulders
Equipment
Dumbbell
Difficulty
Beginner
Type
Push
NASM-CPT, CSCS certified trainers. Every guide is built from peer-reviewed research and real coaching experience.
An isolation exercise that lets you focus on one muscle group, the Dumbbell Fly targets your chest through a pushing movement pattern. Use for chest isolation and stretching.
Everything You Need to Know About the Dumbbell Fly
The Dumbbell Fly is a good for beginners exercise that targets your Chest (pectoralis major). It's a popular choice for building strength and muscle in these areas. When should you use it? Use for chest isolation and stretching. This timing makes the most of your workout and helps you get better results. Who is this for? All fitness levels looking to build strength and muscle definition. Whether you're just starting out or working toward a specific goal, this exercise fits into your routine.
What muscles does the Dumbbell Fly work?
Primary
Secondary
Stabilizers
Step-by-step: Dumbbell Fly
- 1
Lie flat on a bench with dumbbells extended above you.
- 2
Keep a slight bend in your elbows.
- 3
Lower the dumbbells out to the sides in an arc.
- 4
Go until you feel a stretch in your chest.
- 5
Bring the weights back up in a hugging motion.
- 6
Squeeze your chest at the top.
What are the best tips for the Dumbbell Fly?
Think of hugging a big tree.
Don't go too deep and stress your shoulders.
Keep the same elbow angle throughout.
Control the weight the entire time.
Mistakes to watch for on the Dumbbell Fly
Going too heavy and turning it into a press.
Loading more weight than you can control on the Dumbbell Fly forces compensatory movement patterns that bypass your Chest (pectoralis major). Drop the weight until you can perform every rep with clean form — your results will actually improve.
Lowering too far and straining shoulders.
Without proper shoulder positioning during the Dumbbell Fly, your Chest (pectoralis major) can't fully engage. Set your shoulder blades down and back before you start, and maintain that position throughout each rep.
Changing elbow angle during the movement.
Letting your elbows drift wide during the Dumbbell Fly shifts load onto your shoulder joint instead of your Chest (pectoralis major). Keep them tucked at about 45 degrees to protect your rotator cuff and keep tension where it belongs.
Not controlling the descent.
During any pressing movement like the Dumbbell Fly, this mistake reduces how effectively your Chest (pectoralis major) can produce force. Focus on the muscle you're trying to work — if you can't feel your Chest (pectoralis major) driving the movement, something is off.
Who should do the Dumbbell Fly?
All fitness levels looking to build strength and muscle definition.
How to Program the Dumbbell Fly
Lower reps with heavier weight builds raw strength. Your muscles and nervous system adapt to handle more load over time. This range is best for strength-focused goals.
This rep range keeps your muscles under tension long enough to trigger growth. Most people see the best muscle-building results in this zone. It balances strength and muscle size.
Higher reps with lighter weight builds muscular endurance and improves conditioning. This range is good for joint health and building work capacity.
General guideline: 3 sets of 10-15 reps. Rest 60-90s.
What are good alternatives to the Dumbbell Fly?
Other Variations
- Incline Dumbbell Fly
- Decline Dumbbell Fly
Variation Details
Incline Dumbbell Fly
Done on an incline bench. Targets your upper chest more.
Decline Dumbbell Fly
Done on a decline bench. Targets your lower chest more.
Cable Fly
Uses cables for constant tension. Great for peak contraction.
Pec Deck
Machine version with fixed movement path. Easy to learn and very safe.
This Exercise Is in Your Plan
MySetPlan picks the right exercises for your goals — like the Dumbbell Fly — and builds them into a monthly program. Every set, every rep, planned out.
Take the Free Quiz2-minute quiz · No credit card
Safety Notes
- Don't go too heavy.
- Avoid excessive range of motion.
Related Training Guides
Workout Plans with This Exercise
Compare This Exercise
Dumbbell Fly vs Barbell Bench Press
Bench press builds overall chest strength and mass, while dumbbell flyes isolate the pecs with a greater stretch. Use both for complete chest development.
Dumbbell Fly vs Cable Fly
Cable flyes provide constant tension throughout, while dumbbell flyes offer a deeper stretch. Cable flyes are often considered superior for hypertrophy.