Zercher Deadlift vs Bodyweight Back Extension Strength Standards
Compare your zercher deadlift and bodyweight back extension against strength standards for your sex, age range, and bodyweight. Enter one result for each exercise to see your strength levels, next target, and which exercise is the priority.
Use each exercise's canonical input: External load for Zercher Deadlift and No external load for Bodyweight Back Extension. Use a strict, repeatable zercher deadlift test using the canonical setup, range, and finish rules; use a strict, repeatable bodyweight back extension test using the canonical setup, range, and finish rules. Repetitions are never converted into weight. Each exercise keeps its own measurement type. Age range changes only an exercise whose standards use age.
Zercher Deadlift vs Bodyweight Back Extension Strength Standards by Bodyweight
These tables show the minimum result each exercise needs to reach Novice, Intermediate, Advanced, and Elite. Weight-based standards are shown in pounds and kilograms. Direct-performance standards remain strict repetitions or seconds and show every applicable age range.
Find your bodyweight in the men’s or women’s table, then read across the strength levels. Results measured in weight, repetitions, or seconds are not meant to match and are never converted into one another. Use the calculator for your exact inputs and a direct comparison of the strength levels.
Men’s Zercher Deadlift vs Bodyweight Back Extension Standards
How to read the table: Each table entry lists the minimum result for both exercises. Weight-based targets show pounds and kilograms; direct-performance targets show strict repetitions or seconds for each age range. Scroll horizontally on smaller screens.
| Bodyweight | Novice | Intermediate | Advanced | Elite |
|---|---|---|---|---|
| 120 lb 54.4 kg | Zercher Deadlift:189 lb85.7 kg Bodyweight Back Extension:Under 30: 12 reps30–39: 11 reps40–49: 10 reps50–59: 8 reps60+: 6 reps | Zercher Deadlift:245 lb111.1 kg Bodyweight Back Extension:Under 30: 30 reps30–39: 27 reps40–49: 24 reps50–59: 20 reps60+: 15 reps | Zercher Deadlift:280 lb127 kg Bodyweight Back Extension:Under 30: 55 reps30–39: 50 reps40–49: 44 reps50–59: 36 reps60+: 28 reps | Zercher Deadlift:322 lb146.1 kg Bodyweight Back Extension:Under 30: 85 reps30–39: 77 reps40–49: 68 reps50–59: 55 reps60+: 43 reps |
| 130 lb 59 kg | Zercher Deadlift:200 lb90.7 kg Bodyweight Back Extension:Under 30: 12 reps30–39: 11 reps40–49: 10 reps50–59: 8 reps60+: 6 reps | Zercher Deadlift:259 lb117.5 kg Bodyweight Back Extension:Under 30: 30 reps30–39: 27 reps40–49: 24 reps50–59: 20 reps60+: 15 reps | Zercher Deadlift:295 lb133.8 kg Bodyweight Back Extension:Under 30: 55 reps30–39: 50 reps40–49: 44 reps50–59: 36 reps60+: 28 reps | Zercher Deadlift:339 lb153.8 kg Bodyweight Back Extension:Under 30: 85 reps30–39: 77 reps40–49: 68 reps50–59: 55 reps60+: 43 reps |
| 140 lb 63.5 kg | Zercher Deadlift:210 lb95.3 kg Bodyweight Back Extension:Under 30: 12 reps30–39: 11 reps40–49: 10 reps50–59: 8 reps60+: 6 reps | Zercher Deadlift:272 lb123.4 kg Bodyweight Back Extension:Under 30: 30 reps30–39: 27 reps40–49: 24 reps50–59: 20 reps60+: 15 reps | Zercher Deadlift:310 lb140.6 kg Bodyweight Back Extension:Under 30: 55 reps30–39: 50 reps40–49: 44 reps50–59: 36 reps60+: 28 reps | Zercher Deadlift:357 lb161.9 kg Bodyweight Back Extension:Under 30: 85 reps30–39: 77 reps40–49: 68 reps50–59: 55 reps60+: 43 reps |
| 150 lb 68 kg | Zercher Deadlift:220 lb99.8 kg Bodyweight Back Extension:Under 30: 10 reps30–39: 9 reps40–49: 8 reps50–59: 7 reps60+: 5 reps | Zercher Deadlift:284 lb128.8 kg Bodyweight Back Extension:Under 30: 25 reps30–39: 23 reps40–49: 20 reps50–59: 16 reps60+: 13 reps | Zercher Deadlift:325 lb147.4 kg Bodyweight Back Extension:Under 30: 46 reps30–39: 41 reps40–49: 37 reps50–59: 30 reps60+: 23 reps | Zercher Deadlift:373 lb169.2 kg Bodyweight Back Extension:Under 30: 72 reps30–39: 65 reps40–49: 58 reps50–59: 47 reps60+: 36 reps |
| 160 lb 72.6 kg | Zercher Deadlift:229 lb103.9 kg Bodyweight Back Extension:Under 30: 10 reps30–39: 9 reps40–49: 8 reps50–59: 7 reps60+: 5 reps | Zercher Deadlift:297 lb134.7 kg Bodyweight Back Extension:Under 30: 25 reps30–39: 23 reps40–49: 20 reps50–59: 16 reps60+: 13 reps | Zercher Deadlift:339 lb153.8 kg Bodyweight Back Extension:Under 30: 46 reps30–39: 41 reps40–49: 37 reps50–59: 30 reps60+: 23 reps | Zercher Deadlift:390 lb176.9 kg Bodyweight Back Extension:Under 30: 72 reps30–39: 65 reps40–49: 58 reps50–59: 47 reps60+: 36 reps |
| 170 lb 77.1 kg | Zercher Deadlift:239 lb108.4 kg Bodyweight Back Extension:Under 30: 10 reps30–39: 9 reps40–49: 8 reps50–59: 7 reps60+: 5 reps | Zercher Deadlift:309 lb140.2 kg Bodyweight Back Extension:Under 30: 25 reps30–39: 23 reps40–49: 20 reps50–59: 16 reps60+: 13 reps | Zercher Deadlift:353 lb160.1 kg Bodyweight Back Extension:Under 30: 46 reps30–39: 41 reps40–49: 37 reps50–59: 30 reps60+: 23 reps | Zercher Deadlift:406 lb184.2 kg Bodyweight Back Extension:Under 30: 72 reps30–39: 65 reps40–49: 58 reps50–59: 47 reps60+: 36 reps |
| 180 lb 81.6 kg | Zercher Deadlift:248 lb112.5 kg Bodyweight Back Extension:Under 30: 10 reps30–39: 9 reps40–49: 8 reps50–59: 7 reps60+: 5 reps | Zercher Deadlift:321 lb145.6 kg Bodyweight Back Extension:Under 30: 25 reps30–39: 23 reps40–49: 20 reps50–59: 16 reps60+: 13 reps | Zercher Deadlift:367 lb166.5 kg Bodyweight Back Extension:Under 30: 46 reps30–39: 41 reps40–49: 37 reps50–59: 30 reps60+: 23 reps | Zercher Deadlift:422 lb191.4 kg Bodyweight Back Extension:Under 30: 72 reps30–39: 65 reps40–49: 58 reps50–59: 47 reps60+: 36 reps |
| 190 lb 86.2 kg | Zercher Deadlift:257 lb116.6 kg Bodyweight Back Extension:Under 30: 10 reps30–39: 9 reps40–49: 8 reps50–59: 7 reps60+: 5 reps | Zercher Deadlift:333 lb151 kg Bodyweight Back Extension:Under 30: 25 reps30–39: 23 reps40–49: 20 reps50–59: 16 reps60+: 13 reps | Zercher Deadlift:380 lb172.4 kg Bodyweight Back Extension:Under 30: 46 reps30–39: 41 reps40–49: 37 reps50–59: 30 reps60+: 23 reps | Zercher Deadlift:437 lb198.2 kg Bodyweight Back Extension:Under 30: 72 reps30–39: 65 reps40–49: 58 reps50–59: 47 reps60+: 36 reps |
| 200 lb 90.7 kg | Zercher Deadlift:266 lb120.7 kg Bodyweight Back Extension:Under 30: 8 reps30–39: 7 reps40–49: 6 reps50–59: 5 reps60+: 4 reps | Zercher Deadlift:345 lb156.5 kg Bodyweight Back Extension:Under 30: 20 reps30–39: 18 reps40–49: 16 reps50–59: 13 reps60+: 10 reps | Zercher Deadlift:393 lb178.3 kg Bodyweight Back Extension:Under 30: 38 reps30–39: 34 reps40–49: 30 reps50–59: 25 reps60+: 19 reps | Zercher Deadlift:452 lb205 kg Bodyweight Back Extension:Under 30: 60 reps30–39: 54 reps40–49: 48 reps50–59: 39 reps60+: 30 reps |
| 210 lb 95.3 kg | Zercher Deadlift:275 lb124.7 kg Bodyweight Back Extension:Under 30: 8 reps30–39: 7 reps40–49: 6 reps50–59: 5 reps60+: 4 reps | Zercher Deadlift:356 lb161.5 kg Bodyweight Back Extension:Under 30: 20 reps30–39: 18 reps40–49: 16 reps50–59: 13 reps60+: 10 reps | Zercher Deadlift:406 lb184.2 kg Bodyweight Back Extension:Under 30: 38 reps30–39: 34 reps40–49: 30 reps50–59: 25 reps60+: 19 reps | Zercher Deadlift:467 lb211.8 kg Bodyweight Back Extension:Under 30: 60 reps30–39: 54 reps40–49: 48 reps50–59: 39 reps60+: 30 reps |
| 220 lb 99.8 kg | Zercher Deadlift:283 lb128.4 kg Bodyweight Back Extension:Under 30: 8 reps30–39: 7 reps40–49: 6 reps50–59: 5 reps60+: 4 reps | Zercher Deadlift:367 lb166.5 kg Bodyweight Back Extension:Under 30: 20 reps30–39: 18 reps40–49: 16 reps50–59: 13 reps60+: 10 reps | Zercher Deadlift:419 lb190.1 kg Bodyweight Back Extension:Under 30: 38 reps30–39: 34 reps40–49: 30 reps50–59: 25 reps60+: 19 reps | Zercher Deadlift:482 lb218.6 kg Bodyweight Back Extension:Under 30: 60 reps30–39: 54 reps40–49: 48 reps50–59: 39 reps60+: 30 reps |
| 230 lb 104.3 kg | Zercher Deadlift:292 lb132.4 kg Bodyweight Back Extension:Under 30: 8 reps30–39: 7 reps40–49: 6 reps50–59: 5 reps60+: 4 reps | Zercher Deadlift:378 lb171.5 kg Bodyweight Back Extension:Under 30: 20 reps30–39: 18 reps40–49: 16 reps50–59: 13 reps60+: 10 reps | Zercher Deadlift:432 lb196 kg Bodyweight Back Extension:Under 30: 38 reps30–39: 34 reps40–49: 30 reps50–59: 25 reps60+: 19 reps | Zercher Deadlift:496 lb225 kg Bodyweight Back Extension:Under 30: 60 reps30–39: 54 reps40–49: 48 reps50–59: 39 reps60+: 30 reps |
| 240 lb 108.9 kg | Zercher Deadlift:300 lb136.1 kg Bodyweight Back Extension:Under 30: 8 reps30–39: 7 reps40–49: 6 reps50–59: 5 reps60+: 4 reps | Zercher Deadlift:389 lb176.4 kg Bodyweight Back Extension:Under 30: 20 reps30–39: 18 reps40–49: 16 reps50–59: 13 reps60+: 10 reps | Zercher Deadlift:444 lb201.4 kg Bodyweight Back Extension:Under 30: 38 reps30–39: 34 reps40–49: 30 reps50–59: 25 reps60+: 19 reps | Zercher Deadlift:511 lb231.8 kg Bodyweight Back Extension:Under 30: 60 reps30–39: 54 reps40–49: 48 reps50–59: 39 reps60+: 30 reps |
| 250 lb 113.4 kg | Zercher Deadlift:309 lb140.2 kg Bodyweight Back Extension:Under 30: 8 reps30–39: 7 reps40–49: 6 reps50–59: 5 reps60+: 4 reps | Zercher Deadlift:400 lb181.4 kg Bodyweight Back Extension:Under 30: 20 reps30–39: 18 reps40–49: 16 reps50–59: 13 reps60+: 10 reps | Zercher Deadlift:456 lb206.8 kg Bodyweight Back Extension:Under 30: 38 reps30–39: 34 reps40–49: 30 reps50–59: 25 reps60+: 19 reps | Zercher Deadlift:525 lb238.1 kg Bodyweight Back Extension:Under 30: 60 reps30–39: 54 reps40–49: 48 reps50–59: 39 reps60+: 30 reps |
| 260 lb 117.9 kg | Zercher Deadlift:317 lb143.8 kg Bodyweight Back Extension:Under 30: 8 reps30–39: 7 reps40–49: 6 reps50–59: 5 reps60+: 4 reps | Zercher Deadlift:410 lb186 kg Bodyweight Back Extension:Under 30: 20 reps30–39: 18 reps40–49: 16 reps50–59: 13 reps60+: 10 reps | Zercher Deadlift:468 lb212.3 kg Bodyweight Back Extension:Under 30: 38 reps30–39: 34 reps40–49: 30 reps50–59: 25 reps60+: 19 reps | Zercher Deadlift:539 lb244.5 kg Bodyweight Back Extension:Under 30: 60 reps30–39: 54 reps40–49: 48 reps50–59: 39 reps60+: 30 reps |
| 270 lb 122.5 kg | Zercher Deadlift:325 lb147.4 kg Bodyweight Back Extension:Under 30: 8 reps30–39: 7 reps40–49: 6 reps50–59: 5 reps60+: 4 reps | Zercher Deadlift:421 lb191 kg Bodyweight Back Extension:Under 30: 20 reps30–39: 18 reps40–49: 16 reps50–59: 13 reps60+: 10 reps | Zercher Deadlift:480 lb217.7 kg Bodyweight Back Extension:Under 30: 38 reps30–39: 34 reps40–49: 30 reps50–59: 25 reps60+: 19 reps | Zercher Deadlift:552 lb250.4 kg Bodyweight Back Extension:Under 30: 60 reps30–39: 54 reps40–49: 48 reps50–59: 39 reps60+: 30 reps |
| 280 lb 127 kg | Zercher Deadlift:333 lb151 kg Bodyweight Back Extension:Under 30: 8 reps30–39: 7 reps40–49: 6 reps50–59: 5 reps60+: 4 reps | Zercher Deadlift:431 lb195.5 kg Bodyweight Back Extension:Under 30: 20 reps30–39: 18 reps40–49: 16 reps50–59: 13 reps60+: 10 reps | Zercher Deadlift:492 lb223.2 kg Bodyweight Back Extension:Under 30: 38 reps30–39: 34 reps40–49: 30 reps50–59: 25 reps60+: 19 reps | Zercher Deadlift:566 lb256.7 kg Bodyweight Back Extension:Under 30: 60 reps30–39: 54 reps40–49: 48 reps50–59: 39 reps60+: 30 reps |
| 290 lb 131.5 kg | Zercher Deadlift:341 lb154.7 kg Bodyweight Back Extension:Under 30: 8 reps30–39: 7 reps40–49: 6 reps50–59: 5 reps60+: 4 reps | Zercher Deadlift:441 lb200 kg Bodyweight Back Extension:Under 30: 20 reps30–39: 18 reps40–49: 16 reps50–59: 13 reps60+: 10 reps | Zercher Deadlift:504 lb228.6 kg Bodyweight Back Extension:Under 30: 38 reps30–39: 34 reps40–49: 30 reps50–59: 25 reps60+: 19 reps | Zercher Deadlift:579 lb262.6 kg Bodyweight Back Extension:Under 30: 60 reps30–39: 54 reps40–49: 48 reps50–59: 39 reps60+: 30 reps |
| 300 lb 136.1 kg | Zercher Deadlift:348 lb157.9 kg Bodyweight Back Extension:Under 30: 8 reps30–39: 7 reps40–49: 6 reps50–59: 5 reps60+: 4 reps | Zercher Deadlift:452 lb205 kg Bodyweight Back Extension:Under 30: 20 reps30–39: 18 reps40–49: 16 reps50–59: 13 reps60+: 10 reps | Zercher Deadlift:515 lb233.6 kg Bodyweight Back Extension:Under 30: 38 reps30–39: 34 reps40–49: 30 reps50–59: 25 reps60+: 19 reps | Zercher Deadlift:593 lb269 kg Bodyweight Back Extension:Under 30: 60 reps30–39: 54 reps40–49: 48 reps50–59: 39 reps60+: 30 reps |
Women’s Zercher Deadlift vs Bodyweight Back Extension Standards
How to read the table: Each table entry lists the minimum result for both exercises. Weight-based targets show pounds and kilograms; direct-performance targets show strict repetitions or seconds for each age range. Scroll horizontally on smaller screens.
| Bodyweight | Novice | Intermediate | Advanced | Elite |
|---|---|---|---|---|
| 100 lb 45.4 kg | Zercher Deadlift:114 lb51.7 kg Bodyweight Back Extension:Under 30: 11 reps30–39: 10 reps40–49: 9 reps50–59: 7 reps60+: 6 reps | Zercher Deadlift:155 lb70.3 kg Bodyweight Back Extension:Under 30: 28 reps30–39: 25 reps40–49: 22 reps50–59: 18 reps60+: 14 reps | Zercher Deadlift:183 lb83 kg Bodyweight Back Extension:Under 30: 50 reps30–39: 45 reps40–49: 40 reps50–59: 33 reps60+: 25 reps | Zercher Deadlift:212 lb96.2 kg Bodyweight Back Extension:Under 30: 78 reps30–39: 70 reps40–49: 62 reps50–59: 51 reps60+: 39 reps |
| 110 lb 49.9 kg | Zercher Deadlift:122 lb55.3 kg Bodyweight Back Extension:Under 30: 11 reps30–39: 10 reps40–49: 9 reps50–59: 7 reps60+: 6 reps | Zercher Deadlift:165 lb74.8 kg Bodyweight Back Extension:Under 30: 28 reps30–39: 25 reps40–49: 22 reps50–59: 18 reps60+: 14 reps | Zercher Deadlift:195 lb88.5 kg Bodyweight Back Extension:Under 30: 50 reps30–39: 45 reps40–49: 40 reps50–59: 33 reps60+: 25 reps | Zercher Deadlift:226 lb102.5 kg Bodyweight Back Extension:Under 30: 78 reps30–39: 70 reps40–49: 62 reps50–59: 51 reps60+: 39 reps |
| 120 lb 54.4 kg | Zercher Deadlift:129 lb58.5 kg Bodyweight Back Extension:Under 30: 9 reps30–39: 8 reps40–49: 7 reps50–59: 6 reps60+: 5 reps | Zercher Deadlift:175 lb79.4 kg Bodyweight Back Extension:Under 30: 23 reps30–39: 21 reps40–49: 18 reps50–59: 15 reps60+: 12 reps | Zercher Deadlift:207 lb93.9 kg Bodyweight Back Extension:Under 30: 42 reps30–39: 38 reps40–49: 34 reps50–59: 27 reps60+: 21 reps | Zercher Deadlift:240 lb108.9 kg Bodyweight Back Extension:Under 30: 66 reps30–39: 59 reps40–49: 53 reps50–59: 43 reps60+: 33 reps |
| 130 lb 59 kg | Zercher Deadlift:136 lb61.7 kg Bodyweight Back Extension:Under 30: 9 reps30–39: 8 reps40–49: 7 reps50–59: 6 reps60+: 5 reps | Zercher Deadlift:185 lb83.9 kg Bodyweight Back Extension:Under 30: 23 reps30–39: 21 reps40–49: 18 reps50–59: 15 reps60+: 12 reps | Zercher Deadlift:218 lb98.9 kg Bodyweight Back Extension:Under 30: 42 reps30–39: 38 reps40–49: 34 reps50–59: 27 reps60+: 21 reps | Zercher Deadlift:253 lb114.8 kg Bodyweight Back Extension:Under 30: 66 reps30–39: 59 reps40–49: 53 reps50–59: 43 reps60+: 33 reps |
| 140 lb 63.5 kg | Zercher Deadlift:143 lb64.9 kg Bodyweight Back Extension:Under 30: 9 reps30–39: 8 reps40–49: 7 reps50–59: 6 reps60+: 5 reps | Zercher Deadlift:194 lb88 kg Bodyweight Back Extension:Under 30: 23 reps30–39: 21 reps40–49: 18 reps50–59: 15 reps60+: 12 reps | Zercher Deadlift:229 lb103.9 kg Bodyweight Back Extension:Under 30: 42 reps30–39: 38 reps40–49: 34 reps50–59: 27 reps60+: 21 reps | Zercher Deadlift:266 lb120.7 kg Bodyweight Back Extension:Under 30: 66 reps30–39: 59 reps40–49: 53 reps50–59: 43 reps60+: 33 reps |
| 150 lb 68 kg | Zercher Deadlift:150 lb68 kg Bodyweight Back Extension:Under 30: 9 reps30–39: 8 reps40–49: 7 reps50–59: 6 reps60+: 5 reps | Zercher Deadlift:203 lb92.1 kg Bodyweight Back Extension:Under 30: 23 reps30–39: 21 reps40–49: 18 reps50–59: 15 reps60+: 12 reps | Zercher Deadlift:240 lb108.9 kg Bodyweight Back Extension:Under 30: 42 reps30–39: 38 reps40–49: 34 reps50–59: 27 reps60+: 21 reps | Zercher Deadlift:278 lb126.1 kg Bodyweight Back Extension:Under 30: 66 reps30–39: 59 reps40–49: 53 reps50–59: 43 reps60+: 33 reps |
| 160 lb 72.6 kg | Zercher Deadlift:157 lb71.2 kg Bodyweight Back Extension:Under 30: 7 reps30–39: 6 reps40–49: 6 reps50–59: 5 reps60+: 4 reps | Zercher Deadlift:212 lb96.2 kg Bodyweight Back Extension:Under 30: 18 reps30–39: 16 reps40–49: 14 reps50–59: 12 reps60+: 9 reps | Zercher Deadlift:251 lb113.9 kg Bodyweight Back Extension:Under 30: 34 reps30–39: 31 reps40–49: 27 reps50–59: 22 reps60+: 17 reps | Zercher Deadlift:290 lb131.5 kg Bodyweight Back Extension:Under 30: 54 reps30–39: 49 reps40–49: 43 reps50–59: 35 reps60+: 27 reps |
| 170 lb 77.1 kg | Zercher Deadlift:163 lb73.9 kg Bodyweight Back Extension:Under 30: 7 reps30–39: 6 reps40–49: 6 reps50–59: 5 reps60+: 4 reps | Zercher Deadlift:221 lb100.2 kg Bodyweight Back Extension:Under 30: 18 reps30–39: 16 reps40–49: 14 reps50–59: 12 reps60+: 9 reps | Zercher Deadlift:261 lb118.4 kg Bodyweight Back Extension:Under 30: 34 reps30–39: 31 reps40–49: 27 reps50–59: 22 reps60+: 17 reps | Zercher Deadlift:302 lb137 kg Bodyweight Back Extension:Under 30: 54 reps30–39: 49 reps40–49: 43 reps50–59: 35 reps60+: 27 reps |
| 180 lb 81.6 kg | Zercher Deadlift:169 lb76.7 kg Bodyweight Back Extension:Under 30: 7 reps30–39: 6 reps40–49: 6 reps50–59: 5 reps60+: 4 reps | Zercher Deadlift:229 lb103.9 kg Bodyweight Back Extension:Under 30: 18 reps30–39: 16 reps40–49: 14 reps50–59: 12 reps60+: 9 reps | Zercher Deadlift:271 lb122.9 kg Bodyweight Back Extension:Under 30: 34 reps30–39: 31 reps40–49: 27 reps50–59: 22 reps60+: 17 reps | Zercher Deadlift:314 lb142.4 kg Bodyweight Back Extension:Under 30: 54 reps30–39: 49 reps40–49: 43 reps50–59: 35 reps60+: 27 reps |
| 190 lb 86.2 kg | Zercher Deadlift:176 lb79.8 kg Bodyweight Back Extension:Under 30: 7 reps30–39: 6 reps40–49: 6 reps50–59: 5 reps60+: 4 reps | Zercher Deadlift:238 lb108 kg Bodyweight Back Extension:Under 30: 18 reps30–39: 16 reps40–49: 14 reps50–59: 12 reps60+: 9 reps | Zercher Deadlift:281 lb127.5 kg Bodyweight Back Extension:Under 30: 34 reps30–39: 31 reps40–49: 27 reps50–59: 22 reps60+: 17 reps | Zercher Deadlift:325 lb147.4 kg Bodyweight Back Extension:Under 30: 54 reps30–39: 49 reps40–49: 43 reps50–59: 35 reps60+: 27 reps |
| 200 lb 90.7 kg | Zercher Deadlift:182 lb82.6 kg Bodyweight Back Extension:Under 30: 7 reps30–39: 6 reps40–49: 6 reps50–59: 5 reps60+: 4 reps | Zercher Deadlift:246 lb111.6 kg Bodyweight Back Extension:Under 30: 18 reps30–39: 16 reps40–49: 14 reps50–59: 12 reps60+: 9 reps | Zercher Deadlift:291 lb132 kg Bodyweight Back Extension:Under 30: 34 reps30–39: 31 reps40–49: 27 reps50–59: 22 reps60+: 17 reps | Zercher Deadlift:337 lb152.9 kg Bodyweight Back Extension:Under 30: 54 reps30–39: 49 reps40–49: 43 reps50–59: 35 reps60+: 27 reps |
| 210 lb 95.3 kg | Zercher Deadlift:188 lb85.3 kg Bodyweight Back Extension:Under 30: 7 reps30–39: 6 reps40–49: 6 reps50–59: 5 reps60+: 4 reps | Zercher Deadlift:254 lb115.2 kg Bodyweight Back Extension:Under 30: 18 reps30–39: 16 reps40–49: 14 reps50–59: 12 reps60+: 9 reps | Zercher Deadlift:300 lb136.1 kg Bodyweight Back Extension:Under 30: 34 reps30–39: 31 reps40–49: 27 reps50–59: 22 reps60+: 17 reps | Zercher Deadlift:348 lb157.9 kg Bodyweight Back Extension:Under 30: 54 reps30–39: 49 reps40–49: 43 reps50–59: 35 reps60+: 27 reps |
| 220 lb 99.8 kg | Zercher Deadlift:194 lb88 kg Bodyweight Back Extension:Under 30: 7 reps30–39: 6 reps40–49: 6 reps50–59: 5 reps60+: 4 reps | Zercher Deadlift:262 lb118.8 kg Bodyweight Back Extension:Under 30: 18 reps30–39: 16 reps40–49: 14 reps50–59: 12 reps60+: 9 reps | Zercher Deadlift:310 lb140.6 kg Bodyweight Back Extension:Under 30: 34 reps30–39: 31 reps40–49: 27 reps50–59: 22 reps60+: 17 reps | Zercher Deadlift:359 lb162.8 kg Bodyweight Back Extension:Under 30: 54 reps30–39: 49 reps40–49: 43 reps50–59: 35 reps60+: 27 reps |
| 230 lb 104.3 kg | Zercher Deadlift:199 lb90.3 kg Bodyweight Back Extension:Under 30: 7 reps30–39: 6 reps40–49: 6 reps50–59: 5 reps60+: 4 reps | Zercher Deadlift:270 lb122.5 kg Bodyweight Back Extension:Under 30: 18 reps30–39: 16 reps40–49: 14 reps50–59: 12 reps60+: 9 reps | Zercher Deadlift:319 lb144.7 kg Bodyweight Back Extension:Under 30: 34 reps30–39: 31 reps40–49: 27 reps50–59: 22 reps60+: 17 reps | Zercher Deadlift:370 lb167.8 kg Bodyweight Back Extension:Under 30: 54 reps30–39: 49 reps40–49: 43 reps50–59: 35 reps60+: 27 reps |
| 240 lb 108.9 kg | Zercher Deadlift:205 lb93 kg Bodyweight Back Extension:Under 30: 7 reps30–39: 6 reps40–49: 6 reps50–59: 5 reps60+: 4 reps | Zercher Deadlift:278 lb126.1 kg Bodyweight Back Extension:Under 30: 18 reps30–39: 16 reps40–49: 14 reps50–59: 12 reps60+: 9 reps | Zercher Deadlift:328 lb148.8 kg Bodyweight Back Extension:Under 30: 34 reps30–39: 31 reps40–49: 27 reps50–59: 22 reps60+: 17 reps | Zercher Deadlift:380 lb172.4 kg Bodyweight Back Extension:Under 30: 54 reps30–39: 49 reps40–49: 43 reps50–59: 35 reps60+: 27 reps |
How Your Zercher Deadlift vs Bodyweight Back Extension Result Is Calculated
The two exercises can use different measurements. The calculator rates each result against the standards for that exercise first, then compares the resulting strength levels and progress toward the next level. It never invents a reps-to-weight conversion.
1. Estimate the weight-based result
For Zercher Deadlift, one rep uses the weight entered. For 2–12 reps, the calculator runs both estimates and keeps the lower result.
- 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.
2. Rate the Zercher Deadlift result
The standards use the sex-specific targets from the individual Zercher Deadlift tool. The target adjusts to bodyweight using reference target × (user bodyweight ÷ reference bodyweight) to the two-thirds power.
3. Rate the Bodyweight Back Extension result
The canonical repetition thresholds map the strict set to a strength tier; no reps-to-weight conversion is used. The calculator uses one continuous strict bodyweight back extension set scored by repetitions and does not convert the repetitions into an estimated weight.
4. Compare strength level and progress
The lower strength level is the priority. When both exercises reach the same level, a priority appears only when one is at least 10 points farther from its next target. Otherwise, the result is Balanced. Age range changes only the exercise whose standards include age; it remains an analytics field for the other exercise.
| Stage | What happens |
|---|---|
| Rate the zercher deadlift | Adjust zercher deadlift targets to exact bodyweight with the two-thirds rule. Measurement: estimated one-rep max. |
| Rate the bodyweight back extension | Rate strict bodyweight back extension repetitions without converting them into weight. Measurement: Strict bodyweight back extension reps. |
| Compare levels | Use each exercise’s own level and next target; do not compare or divide results that use different measurements. |
How Men’s Zercher Deadlift and Bodyweight Back Extension Standards Differ
What the men’s standards show:
Zercher Deadlift Elite targets322 lb → 593 lb
Elite weight targets from 120 to 300 lb bodyweight.
Bodyweight Back Extension Elite targets85 reps → 43 reps
Elite direct-performance targets from the youngest to oldest listed age range at 120 lb bodyweight.
Comparison boundaryStrength level first
Raw repetitions, seconds, and weights are not divided or converted. The calculator compares each exercise’s canonical tier and progress within that tier.
The exact table above is the correct way to inspect direct or unlike measurements. A pounds-difference chart would be invalid because repetitions, seconds, and estimated weight do not share a unit.
How Women’s Zercher Deadlift and Bodyweight Back Extension Standards Differ
What the women’s standards show:
Zercher Deadlift Elite targets212 lb → 380 lb
Elite weight targets from 100 to 240 lb bodyweight.
Bodyweight Back Extension Elite targets78 reps → 39 reps
Elite direct-performance targets from the youngest to oldest listed age range at 100 lb bodyweight.
Comparison boundaryStrength level first
Raw repetitions, seconds, and weights are not divided or converted. The calculator compares each exercise’s canonical tier and progress within that tier.
Use the calculator to apply the correct age range and exact bodyweight before comparing the two strength levels.
Zercher Deadlift and Bodyweight Back Extension Exercises Used by This Calculator
This calculator uses a strict zercher deadlift and a strict bodyweight back extension. Use strict canonical Zercher Deadlift and Bodyweight Back Extension tests. Do not mix variations, assistance, partial range, momentum, or different load conventions.
Use a strict, repeatable Zercher Deadlift
Follow the individual Zercher Deadlift calculator’s canonical setup, load convention, range of motion, and finish rules. Keep the same setup when retesting.
Use a strict, repeatable Bodyweight Back Extension
Follow the individual Bodyweight Back Extension calculator’s canonical setup, load convention, range of motion, and finish rules. Keep the same setup when retesting.
Enter one recent Zercher Deadlift result and one recent Bodyweight Back Extension result
Use each exercise’s canonical input: External load for Zercher Deadlift and No external load for Bodyweight Back Extension.
Related Tools
- Zercher Deadlift (From Floor) — View the individual Zercher Deadlift standards and next strength-level target.
- Bodyweight Back Extension Strength Standards — View the individual Bodyweight Back Extension standards and next strength-level target.
- Machine Back Extension — Use this related standards tool to compare a registry-approved neighboring exercise without mixing its result into this comparison.
- Lying Leg Curl — Use this related standards tool to compare a registry-approved neighboring exercise without mixing its result into this comparison.
- Cable Pull Through — Use this related standards tool to compare a registry-approved neighboring exercise without mixing its result into this comparison.
- Romanian Deadlift — Use this related standards tool to compare a registry-approved neighboring exercise without mixing its result into this comparison.