EZ Bar Curl vs Barbell Preacher Curl Strength Standards
Compare your EZ bar curl and barbell preacher 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.
Enter the canonical load and a whole number of strict repetitions for each exercise. Pounds and kilograms can be mixed. Use a strict EZ-bar curl with quiet torso and upper arms, controlled top, and full lowering and a strict bilateral barbell preacher curl from controlled near-full elbow extension to full flexion with upper arms planted. 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 Barbell Preacher Curl Strength Standards by Bodyweight
Use these tables to compare the estimated one-rep max required for the EZ bar curl and barbell preacher 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 barbell preacher 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 / Barbell Preacher 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 Barbell Preacher Curl Standards
How to read the table: The first number is EZ Bar Curl; the second is Barbell Preacher 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 / 35 lb 14.1 / 15.9 kg | 45 / 53 lb 20.4 / 24 kg | 62 / 77 lb 28.1 / 34.9 kg | 81 / 101 lb 36.7 / 45.8 kg |
| 130 lb 59 kg | 33 / 37 lb 15 / 16.8 kg | 47 / 56 lb 21.3 / 25.4 kg | 65 / 82 lb 29.5 / 37.2 kg | 85 / 106 lb 38.6 / 48.1 kg |
| 140 lb 63.5 kg | 34 / 39 lb 15.4 / 17.7 kg | 50 / 59 lb 22.7 / 26.8 kg | 69 / 86 lb 31.3 / 39 kg | 90 / 112 lb 40.8 / 50.8 kg |
| 150 lb 68 kg | 36 / 41 lb 16.3 / 18.6 kg | 52 / 62 lb 23.6 / 28.1 kg | 72 / 90 lb 32.7 / 40.8 kg | 94 / 117 lb 42.6 / 53.1 kg |
| 160 lb 72.6 kg | 37 / 43 lb 16.8 / 19.5 kg | 54 / 64 lb 24.5 / 29 kg | 75 / 94 lb 34 / 42.6 kg | 98 / 122 lb 44.5 / 55.3 kg |
| 170 lb 77.1 kg | 39 / 45 lb 17.7 / 20.4 kg | 57 / 67 lb 25.9 / 30.4 kg | 78 / 97 lb 35.4 / 44 kg | 102 / 127 lb 46.3 / 57.6 kg |
| 180 lb 81.6 kg | 41 / 46 lb 18.6 / 20.9 kg | 59 / 69 lb 26.8 / 31.3 kg | 81 / 101 lb 36.7 / 45.8 kg | 106 / 132 lb 48.1 / 59.9 kg |
| 190 lb 86.2 kg | 42 / 48 lb 19.1 / 21.8 kg | 61 / 72 lb 27.7 / 32.7 kg | 84 / 105 lb 38.1 / 47.6 kg | 110 / 137 lb 49.9 / 62.1 kg |
| 200 lb 90.7 kg | 43 / 50 lb 19.5 / 22.7 kg | 63 / 75 lb 28.6 / 34 kg | 87 / 109 lb 39.5 / 49.4 kg | 114 / 142 lb 51.7 / 64.4 kg |
| 210 lb 95.3 kg | 45 / 51 lb 20.4 / 23.1 kg | 65 / 77 lb 29.5 / 34.9 kg | 90 / 112 lb 40.8 / 50.8 kg | 118 / 146 lb 53.5 / 66.2 kg |
| 220 lb 99.8 kg | 46 / 53 lb 20.9 / 24 kg | 67 / 79 lb 30.4 / 35.8 kg | 93 / 116 lb 42.2 / 52.6 kg | 121 / 151 lb 54.9 / 68.5 kg |
| 230 lb 104.3 kg | 48 / 55 lb 21.8 / 24.9 kg | 69 / 82 lb 31.3 / 37.2 kg | 95 / 119 lb 43.1 / 54 kg | 125 / 156 lb 56.7 / 70.8 kg |
| 240 lb 108.9 kg | 49 / 56 lb 22.2 / 25.4 kg | 71 / 84 lb 32.2 / 38.1 kg | 98 / 123 lb 44.5 / 55.8 kg | 129 / 160 lb 58.5 / 72.6 kg |
| 250 lb 113.4 kg | 50 / 58 lb 22.7 / 26.3 kg | 73 / 86 lb 33.1 / 39 kg | 101 / 126 lb 45.8 / 57.2 kg | 132 / 165 lb 59.9 / 74.8 kg |
| 260 lb 117.9 kg | 52 / 59 lb 23.6 / 26.8 kg | 75 / 89 lb 34 / 40.4 kg | 104 / 129 lb 47.2 / 58.5 kg | 136 / 169 lb 61.7 / 76.7 kg |
| 270 lb 122.5 kg | 53 / 61 lb 24 / 27.7 kg | 77 / 91 lb 34.9 / 41.3 kg | 106 / 133 lb 48.1 / 60.3 kg | 139 / 173 lb 63 / 78.5 kg |
| 280 lb 127 kg | 54 / 62 lb 24.5 / 28.1 kg | 79 / 93 lb 35.8 / 42.2 kg | 109 / 136 lb 49.4 / 61.7 kg | 142 / 177 lb 64.4 / 80.3 kg |
| 290 lb 131.5 kg | 56 / 64 lb 25.4 / 29 kg | 81 / 95 lb 36.7 / 43.1 kg | 111 / 139 lb 50.3 / 63 kg | 146 / 182 lb 66.2 / 82.6 kg |
| 300 lb 136.1 kg | 57 / 65 lb 25.9 / 29.5 kg | 83 / 98 lb 37.6 / 44.5 kg | 114 / 142 lb 51.7 / 64.4 kg | 149 / 186 lb 67.6 / 84.4 kg |
Women’s EZ Bar Curl vs Barbell Preacher Curl Standards
How to read the table: The first number is EZ Bar Curl; the second is Barbell Preacher 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 / 20 lb 7.3 / 9.1 kg | 25 / 34 lb 11.3 / 15.4 kg | 37 / 50 lb 16.8 / 22.7 kg | 50 / 69 lb 22.7 / 31.3 kg |
| 110 lb 49.9 kg | 17 / 21 lb 7.7 / 9.5 kg | 27 / 37 lb 12.2 / 16.8 kg | 39 / 53 lb 17.7 / 24 kg | 53 / 73 lb 24 / 33.1 kg |
| 120 lb 54.4 kg | 18 / 22 lb 8.2 / 10 kg | 28 / 39 lb 12.7 / 17.7 kg | 41 / 56 lb 18.6 / 25.4 kg | 56 / 78 lb 25.4 / 35.4 kg |
| 130 lb 59 kg | 19 / 24 lb 8.6 / 10.9 kg | 30 / 41 lb 13.6 / 18.6 kg | 44 / 59 lb 20 / 26.8 kg | 59 / 82 lb 26.8 / 37.2 kg |
| 140 lb 63.5 kg | 20 / 25 lb 9.1 / 11.3 kg | 32 / 43 lb 14.5 / 19.5 kg | 46 / 62 lb 20.9 / 28.1 kg | 62 / 86 lb 28.1 / 39 kg |
| 150 lb 68 kg | 21 / 26 lb 9.5 / 11.8 kg | 33 / 45 lb 15 / 20.4 kg | 48 / 65 lb 21.8 / 29.5 kg | 65 / 90 lb 29.5 / 40.8 kg |
| 160 lb 72.6 kg | 22 / 27 lb 10 / 12.2 kg | 34 / 47 lb 15.4 / 21.3 kg | 50 / 68 lb 22.7 / 30.8 kg | 68 / 94 lb 30.8 / 42.6 kg |
| 170 lb 77.1 kg | 23 / 28 lb 10.4 / 12.7 kg | 36 / 49 lb 16.3 / 22.2 kg | 52 / 71 lb 23.6 / 32.2 kg | 71 / 98 lb 32.2 / 44.5 kg |
| 180 lb 81.6 kg | 24 / 29 lb 10.9 / 13.2 kg | 37 / 51 lb 16.8 / 23.1 kg | 54 / 73 lb 24.5 / 33.1 kg | 73 / 102 lb 33.1 / 46.3 kg |
| 190 lb 86.2 kg | 25 / 30 lb 11.3 / 13.6 kg | 39 / 53 lb 17.7 / 24 kg | 56 / 76 lb 25.4 / 34.5 kg | 76 / 105 lb 34.5 / 47.6 kg |
| 200 lb 90.7 kg | 25 / 31 lb 11.3 / 14.1 kg | 40 / 55 lb 18.1 / 24.9 kg | 58 / 79 lb 26.3 / 35.8 kg | 79 / 109 lb 35.8 / 49.4 kg |
| 210 lb 95.3 kg | 26 / 33 lb 11.8 / 15 kg | 41 / 56 lb 18.6 / 25.4 kg | 60 / 81 lb 27.2 / 36.7 kg | 81 / 113 lb 36.7 / 51.3 kg |
| 220 lb 99.8 kg | 27 / 34 lb 12.2 / 15.4 kg | 43 / 58 lb 19.5 / 26.3 kg | 62 / 84 lb 28.1 / 38.1 kg | 84 / 116 lb 38.1 / 52.6 kg |
| 230 lb 104.3 kg | 28 / 35 lb 12.7 / 15.9 kg | 44 / 60 lb 20 / 27.2 kg | 64 / 86 lb 29 / 39 kg | 86 / 120 lb 39 / 54.4 kg |
| 240 lb 108.9 kg | 29 / 36 lb 13.2 / 16.3 kg | 45 / 62 lb 20.4 / 28.1 kg | 66 / 89 lb 29.9 / 40.4 kg | 89 / 123 lb 40.4 / 55.8 kg |
How Your EZ Bar Curl vs Barbell Preacher 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 barbell preacher curl strength level
The standards use the sex-specific strength levels from the individual Barbell Preacher 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 curl more total barbell weight 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 barbell preacher curl | Adjust barbell preacher 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 Barbell Preacher 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 barbell preacher 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.
9.1 → 16.8 kg from 120 to 300 lb bodyweight.
How to read the table: Every number is the barbell preacher curl standard minus the EZ bar curl standard. A plus sign means the barbell preacher 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 | +4 lb +1.8 kg | +8 lb +3.6 kg | +15 lb +6.8 kg | +20 lb +9.1 kg |
| 130 lb 59 kg | +4 lb +1.8 kg | +9 lb +4.1 kg | +17 lb +7.7 kg | +21 lb +9.5 kg |
| 140 lb 63.5 kg | +5 lb +2.3 kg | +9 lb +4.1 kg | +17 lb +7.7 kg | +22 lb +10 kg |
| 150 lb 68 kg | +5 lb +2.3 kg | +10 lb +4.5 kg | +18 lb +8.1 kg | +23 lb +10.5 kg |
| 160 lb 72.6 kg | +6 lb +2.7 kg | +10 lb +4.5 kg | +19 lb +8.6 kg | +24 lb +10.8 kg |
| 170 lb 77.1 kg | +6 lb +2.7 kg | +10 lb +4.5 kg | +19 lb +8.6 kg | +25 lb +11.3 kg |
| 180 lb 81.6 kg | +5 lb +2.3 kg | +10 lb +4.5 kg | +20 lb +9.1 kg | +26 lb +11.8 kg |
| 190 lb 86.2 kg | +6 lb +2.7 kg | +11 lb +5 kg | +21 lb +9.5 kg | +27 lb +12.2 kg |
| 200 lb 90.7 kg | +7 lb +3.2 kg | +12 lb +5.4 kg | +22 lb +9.9 kg | +28 lb +12.7 kg |
| 210 lb 95.3 kg | +6 lb +2.7 kg | +12 lb +5.4 kg | +22 lb +10 kg | +28 lb +12.7 kg |
| 220 lb 99.8 kg | +7 lb +3.1 kg | +12 lb +5.4 kg | +23 lb +10.4 kg | +30 lb +13.6 kg |
| 230 lb 104.3 kg | +7 lb +3.1 kg | +13 lb +5.9 kg | +24 lb +10.9 kg | +31 lb +14.1 kg |
| 240 lb 108.9 kg | +7 lb +3.2 kg | +13 lb +5.9 kg | +25 lb +11.3 kg | +31 lb +14.1 kg |
| 250 lb 113.4 kg | +8 lb +3.6 kg | +13 lb +5.9 kg | +25 lb +11.4 kg | +33 lb +14.9 kg |
| 260 lb 117.9 kg | +7 lb +3.2 kg | +14 lb +6.4 kg | +25 lb +11.3 kg | +33 lb +15 kg |
| 270 lb 122.5 kg | +8 lb +3.7 kg | +14 lb +6.4 kg | +27 lb +12.2 kg | +34 lb +15.5 kg |
| 280 lb 127 kg | +8 lb +3.6 kg | +14 lb +6.4 kg | +27 lb +12.3 kg | +35 lb +15.9 kg |
| 290 lb 131.5 kg | +8 lb +3.6 kg | +14 lb +6.4 kg | +28 lb +12.7 kg | +36 lb +16.4 kg |
| 300 lb 136.1 kg | +8 lb +3.6 kg | +15 lb +6.9 kg | +28 lb +12.7 kg | +37 lb +16.8 kg |
How Women’s EZ Bar Curl and Barbell Preacher 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.
8.6 → 15.4 kg from 100 to 240 lb bodyweight.
How to read the table: Every number is the barbell preacher curl standard minus the EZ bar curl standard. A plus sign means the barbell preacher 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 | +4 lb +1.8 kg | +9 lb +4.1 kg | +13 lb +5.9 kg | +19 lb +8.6 kg |
| 110 lb 49.9 kg | +4 lb +1.8 kg | +10 lb +4.6 kg | +14 lb +6.3 kg | +20 lb +9.1 kg |
| 120 lb 54.4 kg | +4 lb +1.8 kg | +11 lb +5 kg | +15 lb +6.8 kg | +22 lb +10 kg |
| 130 lb 59 kg | +5 lb +2.3 kg | +11 lb +5 kg | +15 lb +6.8 kg | +23 lb +10.4 kg |
| 140 lb 63.5 kg | +5 lb +2.2 kg | +11 lb +5 kg | +16 lb +7.2 kg | +24 lb +10.9 kg |
| 150 lb 68 kg | +5 lb +2.3 kg | +12 lb +5.4 kg | +17 lb +7.7 kg | +25 lb +11.3 kg |
| 160 lb 72.6 kg | +5 lb +2.2 kg | +13 lb +5.9 kg | +18 lb +8.1 kg | +26 lb +11.8 kg |
| 170 lb 77.1 kg | +5 lb +2.3 kg | +13 lb +5.9 kg | +19 lb +8.6 kg | +27 lb +12.3 kg |
| 180 lb 81.6 kg | +5 lb +2.3 kg | +14 lb +6.3 kg | +19 lb +8.6 kg | +29 lb +13.2 kg |
| 190 lb 86.2 kg | +5 lb +2.3 kg | +14 lb +6.3 kg | +20 lb +9.1 kg | +29 lb +13.1 kg |
| 200 lb 90.7 kg | +6 lb +2.8 kg | +15 lb +6.8 kg | +21 lb +9.5 kg | +30 lb +13.6 kg |
| 210 lb 95.3 kg | +7 lb +3.2 kg | +15 lb +6.8 kg | +21 lb +9.5 kg | +32 lb +14.6 kg |
| 220 lb 99.8 kg | +7 lb +3.2 kg | +15 lb +6.8 kg | +22 lb +10 kg | +32 lb +14.5 kg |
| 230 lb 104.3 kg | +7 lb +3.2 kg | +16 lb +7.2 kg | +22 lb +10 kg | +34 lb +15.4 kg |
| 240 lb 108.9 kg | +7 lb +3.1 kg | +17 lb +7.7 kg | +23 lb +10.5 kg | +34 lb +15.4 kg |
EZ Bar Curl and Barbell Preacher Curl Exercises Used by This Calculator
This calculator uses a strict EZ-bar curl and a strict bilateral barbell preacher curl. Use strict canonical EZ Bar Curl and Barbell Preacher 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.
Enter total barbell weight and keep the upper arms planted
Start near full elbow extension with both upper arms fixed on the preacher pad, curl to full flexion, and lower under control. Do not count upper-arm lift, bounce, partials, torso or hip drive, standing assistance, spotter help, machine, cable, or assisted reps.
Enter one recent EZ Bar Curl result and one recent Barbell Preacher Curl result
Enter the canonical load and a whole number of strict repetitions for each exercise. Pounds and kilograms can be mixed.
Related Tools
- EZ Bar Curl — View the individual EZ Bar Curl standards and next strength-level target.
- Barbell Preacher Curl — View the individual Barbell Preacher 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.
- Barbell Curl (Strict) — 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.