EZ Bar Curl vs Dumbbell Concentration Curl Strength Standards
Compare your EZ bar curl and dumbbell concentration curl against strength standards for your sex and bodyweight. Enter one recent set of 1–12 reps for each lift to see your estimated one-rep maxes, strength levels, next targets, and which lift you should prioritize.
Use each exercise's canonical input: Total EZ bar weight for EZ Bar Curl and External load for Dumbbell Concentration Curl. Use a strict EZ-bar curl with quiet torso and upper arms, controlled top, and full lowering and a strict, repeatable dumbbell concentration curl test using the canonical setup, range, and finish rules. You can enter either lift in pounds or kilograms. Each lift is compared with its own standards, so the heavier lift is not automatically the stronger one.
EZ Bar Curl vs Dumbbell Concentration Curl Strength Standards by Bodyweight
Use these tables to compare the estimated one-rep max required for the EZ bar curl and dumbbell concentration curl to reach the same strength level at each listed bodyweight. They show the targets used by the calculator—not a required difference between your EZ bar curl and dumbbell concentration curl.
Choose the men’s or women’s table, find your bodyweight or the closest listed row, then read across to Novice, Intermediate, Advanced, or Elite. Every entry shows EZ Bar Curl / Dumbbell Concentration Curl, with pounds first and kilograms underneath. For a result based on your exact bodyweight and recent sets, use the calculator above; you do not need to test either true one-rep max.
Men’s EZ Bar Curl vs Dumbbell Concentration Curl Standards
How to read the table: The first number is EZ Bar Curl; the second is Dumbbell Concentration Curl. Each number is the lowest estimated one-rep max needed to reach that strength level. Scroll horizontally on smaller screens.
| Bodyweight | Novice | Intermediate | Advanced | Elite |
|---|---|---|---|---|
| 120 lb 54.4 kg | 31 / 15 lb 14.1 / 6.8 kg | 45 / 27 lb 20.4 / 12.2 kg | 62 / 39 lb 28.1 / 17.7 kg | 81 / 54 lb 36.7 / 24.5 kg |
| 130 lb 59 kg | 33 / 16 lb 15 / 7.3 kg | 47 / 28 lb 21.3 / 12.7 kg | 65 / 41 lb 29.5 / 18.6 kg | 85 / 57 lb 38.6 / 25.9 kg |
| 140 lb 63.5 kg | 34 / 17 lb 15.4 / 7.7 kg | 50 / 29 lb 22.7 / 13.2 kg | 69 / 43 lb 31.3 / 19.5 kg | 90 / 60 lb 40.8 / 27.2 kg |
| 150 lb 68 kg | 36 / 18 lb 16.3 / 8.2 kg | 52 / 31 lb 23.6 / 14.1 kg | 72 / 45 lb 32.7 / 20.4 kg | 94 / 63 lb 42.6 / 28.6 kg |
| 160 lb 72.6 kg | 37 / 19 lb 16.8 / 8.6 kg | 54 / 32 lb 24.5 / 14.5 kg | 75 / 47 lb 34 / 21.3 kg | 98 / 66 lb 44.5 / 29.9 kg |
| 170 lb 77.1 kg | 39 / 19 lb 17.7 / 8.6 kg | 57 / 33 lb 25.9 / 15 kg | 78 / 49 lb 35.4 / 22.2 kg | 102 / 69 lb 46.3 / 31.3 kg |
| 180 lb 81.6 kg | 41 / 20 lb 18.6 / 9.1 kg | 59 / 35 lb 26.8 / 15.9 kg | 81 / 51 lb 36.7 / 23.1 kg | 106 / 71 lb 48.1 / 32.2 kg |
| 190 lb 86.2 kg | 42 / 21 lb 19.1 / 9.5 kg | 61 / 36 lb 27.7 / 16.3 kg | 84 / 53 lb 38.1 / 24 kg | 110 / 74 lb 49.9 / 33.6 kg |
| 200 lb 90.7 kg | 43 / 22 lb 19.5 / 10 kg | 63 / 37 lb 28.6 / 16.8 kg | 87 / 55 lb 39.5 / 24.9 kg | 114 / 77 lb 51.7 / 34.9 kg |
| 210 lb 95.3 kg | 45 / 22 lb 20.4 / 10 kg | 65 / 38 lb 29.5 / 17.2 kg | 90 / 57 lb 40.8 / 25.9 kg | 118 / 79 lb 53.5 / 35.8 kg |
| 220 lb 99.8 kg | 46 / 23 lb 20.9 / 10.4 kg | 67 / 40 lb 30.4 / 18.1 kg | 93 / 58 lb 42.2 / 26.3 kg | 121 / 82 lb 54.9 / 37.2 kg |
| 230 lb 104.3 kg | 48 / 24 lb 21.8 / 10.9 kg | 69 / 41 lb 31.3 / 18.6 kg | 95 / 60 lb 43.1 / 27.2 kg | 125 / 84 lb 56.7 / 38.1 kg |
| 240 lb 108.9 kg | 49 / 25 lb 22.2 / 11.3 kg | 71 / 42 lb 32.2 / 19.1 kg | 98 / 62 lb 44.5 / 28.1 kg | 129 / 86 lb 58.5 / 39 kg |
| 250 lb 113.4 kg | 50 / 25 lb 22.7 / 11.3 kg | 73 / 43 lb 33.1 / 19.5 kg | 101 / 64 lb 45.8 / 29 kg | 132 / 89 lb 59.9 / 40.4 kg |
| 260 lb 117.9 kg | 52 / 26 lb 23.6 / 11.8 kg | 75 / 44 lb 34 / 20 kg | 104 / 65 lb 47.2 / 29.5 kg | 136 / 91 lb 61.7 / 41.3 kg |
| 270 lb 122.5 kg | 53 / 27 lb 24 / 12.2 kg | 77 / 46 lb 34.9 / 20.9 kg | 106 / 67 lb 48.1 / 30.4 kg | 139 / 94 lb 63 / 42.6 kg |
| 280 lb 127 kg | 54 / 27 lb 24.5 / 12.2 kg | 79 / 47 lb 35.8 / 21.3 kg | 109 / 69 lb 49.4 / 31.3 kg | 142 / 96 lb 64.4 / 43.5 kg |
| 290 lb 131.5 kg | 56 / 28 lb 25.4 / 12.7 kg | 81 / 48 lb 36.7 / 21.8 kg | 111 / 70 lb 50.3 / 31.8 kg | 146 / 98 lb 66.2 / 44.5 kg |
| 300 lb 136.1 kg | 57 / 28 lb 25.9 / 12.7 kg | 83 / 49 lb 37.6 / 22.2 kg | 114 / 72 lb 51.7 / 32.7 kg | 149 / 100 lb 67.6 / 45.4 kg |
Women’s EZ Bar Curl vs Dumbbell Concentration Curl Standards
How to read the table: The first number is EZ Bar Curl; the second is Dumbbell Concentration Curl. Each number is the lowest estimated one-rep max needed to reach that strength level. Scroll horizontally on smaller screens.
| Bodyweight | Novice | Intermediate | Advanced | Elite |
|---|---|---|---|---|
| 100 lb 45.4 kg | 16 / 9 lb 7.3 / 4.1 kg | 25 / 16 lb 11.3 / 7.3 kg | 37 / 24 lb 16.8 / 10.9 kg | 50 / 34 lb 22.7 / 15.4 kg |
| 110 lb 49.9 kg | 17 / 10 lb 7.7 / 4.5 kg | 27 / 17 lb 12.2 / 7.7 kg | 39 / 26 lb 17.7 / 11.8 kg | 53 / 37 lb 24 / 16.8 kg |
| 120 lb 54.4 kg | 18 / 10 lb 8.2 / 4.5 kg | 28 / 18 lb 12.7 / 8.2 kg | 41 / 28 lb 18.6 / 12.7 kg | 56 / 39 lb 25.4 / 17.7 kg |
| 130 lb 59 kg | 19 / 11 lb 8.6 / 5 kg | 30 / 19 lb 13.6 / 8.6 kg | 44 / 29 lb 20 / 13.2 kg | 59 / 41 lb 26.8 / 18.6 kg |
| 140 lb 63.5 kg | 20 / 11 lb 9.1 / 5 kg | 32 / 20 lb 14.5 / 9.1 kg | 46 / 31 lb 20.9 / 14.1 kg | 62 / 43 lb 28.1 / 19.5 kg |
| 150 lb 68 kg | 21 / 12 lb 9.5 / 5.4 kg | 33 / 21 lb 15 / 9.5 kg | 48 / 32 lb 21.8 / 14.5 kg | 65 / 45 lb 29.5 / 20.4 kg |
| 160 lb 72.6 kg | 22 / 13 lb 10 / 5.9 kg | 34 / 22 lb 15.4 / 10 kg | 50 / 33 lb 22.7 / 15 kg | 68 / 47 lb 30.8 / 21.3 kg |
| 170 lb 77.1 kg | 23 / 13 lb 10.4 / 5.9 kg | 36 / 23 lb 16.3 / 10.4 kg | 52 / 35 lb 23.6 / 15.9 kg | 71 / 49 lb 32.2 / 22.2 kg |
| 180 lb 81.6 kg | 24 / 14 lb 10.9 / 6.4 kg | 37 / 24 lb 16.8 / 10.9 kg | 54 / 36 lb 24.5 / 16.3 kg | 73 / 51 lb 33.1 / 23.1 kg |
| 190 lb 86.2 kg | 25 / 14 lb 11.3 / 6.4 kg | 39 / 25 lb 17.7 / 11.3 kg | 56 / 37 lb 25.4 / 16.8 kg | 76 / 53 lb 34.5 / 24 kg |
| 200 lb 90.7 kg | 25 / 15 lb 11.3 / 6.8 kg | 40 / 25 lb 18.1 / 11.3 kg | 58 / 39 lb 26.3 / 17.7 kg | 79 / 55 lb 35.8 / 24.9 kg |
| 210 lb 95.3 kg | 26 / 15 lb 11.8 / 6.8 kg | 41 / 26 lb 18.6 / 11.8 kg | 60 / 40 lb 27.2 / 18.1 kg | 81 / 56 lb 36.7 / 25.4 kg |
| 220 lb 99.8 kg | 27 / 15 lb 12.2 / 6.8 kg | 43 / 27 lb 19.5 / 12.2 kg | 62 / 41 lb 28.1 / 18.6 kg | 84 / 58 lb 38.1 / 26.3 kg |
| 230 lb 104.3 kg | 28 / 16 lb 12.7 / 7.3 kg | 44 / 28 lb 20 / 12.7 kg | 64 / 43 lb 29 / 19.5 kg | 86 / 60 lb 39 / 27.2 kg |
| 240 lb 108.9 kg | 29 / 16 lb 13.2 / 7.3 kg | 45 / 29 lb 20.4 / 13.2 kg | 66 / 44 lb 29.9 / 20 kg | 89 / 62 lb 40.4 / 28.1 kg |
How Your EZ Bar Curl vs Dumbbell Concentration Curl Result Is Calculated
The calculator estimates each max, rates it against the standards for that exercise and bodyweight, then compares the two ratings. Here is the complete process.
1. Estimate a one-rep max from each set
For one rep, it uses the weight entered. For 2–12 reps, it runs both formulas and keeps the lower, less aggressive estimate.
- Epley: weight × (1 + reps ÷ 30)
- Brzycki: weight × 36 ÷ (37 − reps)
A published back-squat study supports estimated-max prediction under its study conditions. It does not independently validate every exercise or population used by this comparison. Estimates are more dependable from clean, difficult, lower-rep sets. See the Back-squat formula validation study and Published discussion of back-squat one-rep-max prediction research.
2. Find the EZ bar curl strength level
The standards use the sex-specific total-load thresholds from the individual tool. Targets begin at 190 lb for men and 150 lb for women, then adjust to your exact bodyweight: reference target × (user bodyweight ÷ reference bodyweight) to the two-thirds power.
The target rises more slowly than bodyweight so larger lifters are expected to curl more without pound-for-pound scaling.
3. Find the dumbbell concentration curl strength level
The standards use the sex-specific targets from the individual Dumbbell Concentration Curl tool. Targets begin at 190 lb for men and 150 lb for women, then adjust to your exact bodyweight: reference target × (user bodyweight ÷ reference bodyweight) to the two-thirds power.
The target rises more slowly than bodyweight so heavier lifters are expected to lift more without requiring strength to increase pound for pound.
4. Compare the two results
Each max receives a level from Beginner through Elite. The lower-level lift is the priority. If the levels match, a priority appears only when one lift is at least 10 points farther from its next level. Otherwise, the result is Balanced.
The result shows which lift ranks lower, not why. Technique, fatigue, training history, and set quality can affect it. Age range is recorded anonymously but does not change the standards.
| Stage | What happens |
|---|---|
| Estimate each max | Use the entered weight for 1 rep; for 2–12 reps, keep the lower formula result. |
| Rate the EZ bar curl | Use total-EZ-bar estimated max and adjust targets with the two-thirds rule. |
| Rate the dumbbell concentration curl | Adjust dumbbell concentration curl targets to exact bodyweight with the two-thirds rule. |
| Compare different levels | Name the lower-level lift as the priority. |
| Compare matching levels | Use Balanced unless the difference in progress toward the next level reaches 10 points. |
Use the calculator above to see both estimated maxes, strength levels, the priority or Balanced result, and both next-level targets.
How Men’s EZ Bar Curl and Dumbbell Concentration Curl Standards Differ
How to read both charts: Choose a strength level, find bodyweight along the bottom, and follow that level’s line. Zero means the two standards are equal. Above zero means the dumbbell concentration curl standard is higher; below zero means the EZ bar curl standard is higher. On a phone, swipe the chart left and right to inspect the full-size lines and labels. The tables provide the exact pounds and kilograms.
What the men’s data shows:
The standards come closest at 120 lb.
Novice, Intermediate, Advanced, and Elite at every displayed bodyweight.
12.2 → 22.2 kg from 120 to 300 lb bodyweight.
How to read the table: Every number is the dumbbell concentration curl standard minus the EZ bar curl standard. A plus sign means the dumbbell concentration curl standard is higher. A minus sign means the EZ bar curl standard is higher.
| Bodyweight | Novice | Intermediate | Advanced | Elite |
|---|---|---|---|---|
| 120 lb 54.4 kg | −16 lb −7.3 kg | −18 lb −8.2 kg | −23 lb −10.4 kg | −27 lb −12.2 kg |
| 130 lb 59 kg | −17 lb −7.7 kg | −19 lb −8.6 kg | −24 lb −10.9 kg | −28 lb −12.7 kg |
| 140 lb 63.5 kg | −17 lb −7.7 kg | −21 lb −9.5 kg | −26 lb −11.8 kg | −30 lb −13.6 kg |
| 150 lb 68 kg | −18 lb −8.1 kg | −21 lb −9.5 kg | −27 lb −12.3 kg | −31 lb −14 kg |
| 160 lb 72.6 kg | −18 lb −8.2 kg | −22 lb −10 kg | −28 lb −12.7 kg | −32 lb −14.6 kg |
| 170 lb 77.1 kg | −20 lb −9.1 kg | −24 lb −10.9 kg | −29 lb −13.2 kg | −33 lb −15 kg |
| 180 lb 81.6 kg | −21 lb −9.5 kg | −24 lb −10.9 kg | −30 lb −13.6 kg | −35 lb −15.9 kg |
| 190 lb 86.2 kg | −21 lb −9.6 kg | −25 lb −11.4 kg | −31 lb −14.1 kg | −36 lb −16.3 kg |
| 200 lb 90.7 kg | −21 lb −9.5 kg | −26 lb −11.8 kg | −32 lb −14.6 kg | −37 lb −16.8 kg |
| 210 lb 95.3 kg | −23 lb −10.4 kg | −27 lb −12.3 kg | −33 lb −14.9 kg | −39 lb −17.7 kg |
| 220 lb 99.8 kg | −23 lb −10.5 kg | −27 lb −12.3 kg | −35 lb −15.9 kg | −39 lb −17.7 kg |
| 230 lb 104.3 kg | −24 lb −10.9 kg | −28 lb −12.7 kg | −35 lb −15.9 kg | −41 lb −18.6 kg |
| 240 lb 108.9 kg | −24 lb −10.9 kg | −29 lb −13.1 kg | −36 lb −16.4 kg | −43 lb −19.5 kg |
| 250 lb 113.4 kg | −25 lb −11.4 kg | −30 lb −13.6 kg | −37 lb −16.8 kg | −43 lb −19.5 kg |
| 260 lb 117.9 kg | −26 lb −11.8 kg | −31 lb −14 kg | −39 lb −17.7 kg | −45 lb −20.4 kg |
| 270 lb 122.5 kg | −26 lb −11.8 kg | −31 lb −14 kg | −39 lb −17.7 kg | −45 lb −20.4 kg |
| 280 lb 127 kg | −27 lb −12.3 kg | −32 lb −14.5 kg | −40 lb −18.1 kg | −46 lb −20.9 kg |
| 290 lb 131.5 kg | −28 lb −12.7 kg | −33 lb −14.9 kg | −41 lb −18.5 kg | −48 lb −21.7 kg |
| 300 lb 136.1 kg | −29 lb −13.2 kg | −34 lb −15.4 kg | −42 lb −19 kg | −49 lb −22.2 kg |
How Women’s EZ Bar Curl and Dumbbell Concentration Curl Standards Differ
What the women’s data shows:
The standards come closest at 100 lb.
Novice, Intermediate, Advanced, and Elite at every displayed bodyweight.
7.3 → 12.3 kg from 100 to 240 lb bodyweight.
How to read the table: Every number is the dumbbell concentration curl standard minus the EZ bar curl standard. A plus sign means the dumbbell concentration curl standard is higher. A minus sign means the EZ bar curl standard is higher.
| Bodyweight | Novice | Intermediate | Advanced | Elite |
|---|---|---|---|---|
| 100 lb 45.4 kg | −7 lb −3.2 kg | −9 lb −4 kg | −13 lb −5.9 kg | −16 lb −7.3 kg |
| 110 lb 49.9 kg | −7 lb −3.2 kg | −10 lb −4.5 kg | −13 lb −5.9 kg | −16 lb −7.2 kg |
| 120 lb 54.4 kg | −8 lb −3.7 kg | −10 lb −4.5 kg | −13 lb −5.9 kg | −17 lb −7.7 kg |
| 130 lb 59 kg | −8 lb −3.6 kg | −11 lb −5 kg | −15 lb −6.8 kg | −18 lb −8.2 kg |
| 140 lb 63.5 kg | −9 lb −4.1 kg | −12 lb −5.4 kg | −15 lb −6.8 kg | −19 lb −8.6 kg |
| 150 lb 68 kg | −9 lb −4.1 kg | −12 lb −5.5 kg | −16 lb −7.3 kg | −20 lb −9.1 kg |
| 160 lb 72.6 kg | −9 lb −4.1 kg | −12 lb −5.4 kg | −17 lb −7.7 kg | −21 lb −9.5 kg |
| 170 lb 77.1 kg | −10 lb −4.5 kg | −13 lb −5.9 kg | −17 lb −7.7 kg | −22 lb −10 kg |
| 180 lb 81.6 kg | −10 lb −4.5 kg | −13 lb −5.9 kg | −18 lb −8.2 kg | −22 lb −10 kg |
| 190 lb 86.2 kg | −11 lb −4.9 kg | −14 lb −6.4 kg | −19 lb −8.6 kg | −23 lb −10.5 kg |
| 200 lb 90.7 kg | −10 lb −4.5 kg | −15 lb −6.8 kg | −19 lb −8.6 kg | −24 lb −10.9 kg |
| 210 lb 95.3 kg | −11 lb −5 kg | −15 lb −6.8 kg | −20 lb −9.1 kg | −25 lb −11.3 kg |
| 220 lb 99.8 kg | −12 lb −5.4 kg | −16 lb −7.3 kg | −21 lb −9.5 kg | −26 lb −11.8 kg |
| 230 lb 104.3 kg | −12 lb −5.4 kg | −16 lb −7.3 kg | −21 lb −9.5 kg | −26 lb −11.8 kg |
| 240 lb 108.9 kg | −13 lb −5.9 kg | −16 lb −7.2 kg | −22 lb −9.9 kg | −27 lb −12.3 kg |
EZ Bar Curl and Dumbbell Concentration Curl Exercises Used by This Calculator
This calculator uses a strict EZ-bar curl and a strict dumbbell concentration curl. Use strict canonical EZ Bar Curl and Dumbbell Concentration Curl tests. Do not mix variations, assistance, partial range, momentum, or different load conventions.
Enter total EZ-bar weight
Enter the bar plus all plates. Keep torso and upper arms quiet, reach a controlled top, and lower fully. Do not enter per-side plates, straight-bar, preacher, reverse, cable, dumbbell, swung, partial, rack-supported, or assisted reps.
Use a strict, repeatable Dumbbell Concentration Curl
Follow the individual Dumbbell Concentration Curl calculator’s canonical setup, load convention, range of motion, and finish rules. Keep the same setup when retesting.
Enter one recent EZ Bar Curl result and one recent Dumbbell Concentration Curl result
Use each exercise’s canonical input: Total EZ bar weight for EZ Bar Curl and External load for Dumbbell Concentration Curl.
Related Tools
- EZ Bar Curl — View the individual EZ Bar Curl standards and next strength-level target.
- Dumbbell Concentration Curl — View the individual Dumbbell Concentration Curl standards and next strength-level target.
- Cable Hammer Curl — Use this related standards tool to compare a registry-approved neighboring exercise without mixing its result into this comparison.
- Incline Dumbbell Curls — Use this related standards tool to compare a registry-approved neighboring exercise without mixing its result into this comparison.
- Dumbbell Curls — Use this related standards tool to compare a registry-approved neighboring exercise without mixing its result into this comparison.
- Dumbbell Hammer Curl — Use this related standards tool to compare a registry-approved neighboring exercise without mixing its result into this comparison.