Leg Extension vs Barbell Front Squat Strength Standards
Compare your leg extension and barbell front squat 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 working weight and a whole number of strict repetitions for each exercise. Pounds and kilograms can be mixed. Use a strict bilateral leg extension on one dedicated machine with stable hips and torso, a controlled flexed-knee start, near-straight finish, and controlled return and a barbell front squat with a stable front rack, upright controlled descent below parallel, and full standing lockout. 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.
Leg Extension vs Barbell Front Squat Strength Standards by Bodyweight
Use these tables to compare the estimated one-rep max required for the leg extension and barbell front squat to reach the same strength level at each listed bodyweight. They show the targets used by the calculator—not a required difference between your leg extension and barbell front squat.
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 Leg Extension / Barbell Front Squat, 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 Leg Extension vs Barbell Front Squat Standards
How to read the table: The first number is Leg Extension; the second is Barbell Front Squat. 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 | 49 / 119 lb 22.2 / 54 kg | 77 / 154 lb 34.9 / 69.9 kg | 109 / 203 lb 49.4 / 92.1 kg | 143 / 259 lb 64.9 / 117.5 kg |
| 130 lb 59 kg | 52 / 126 lb 23.6 / 57.2 kg | 82 / 162 lb 37.2 / 73.5 kg | 115 / 214 lb 52.2 / 97.1 kg | 151 / 273 lb 68.5 / 123.8 kg |
| 140 lb 63.5 kg | 55 / 132 lb 24.9 / 59.9 kg | 86 / 171 lb 39 / 77.6 kg | 121 / 225 lb 54.9 / 102.1 kg | 158 / 287 lb 71.7 / 130.2 kg |
| 150 lb 68 kg | 57 / 138 lb 25.9 / 62.6 kg | 90 / 179 lb 40.8 / 81.2 kg | 126 / 236 lb 57.2 / 107 kg | 166 / 301 lb 75.3 / 136.5 kg |
| 160 lb 72.6 kg | 60 / 144 lb 27.2 / 65.3 kg | 94 / 186 lb 42.6 / 84.4 kg | 132 / 246 lb 59.9 / 111.6 kg | 173 / 314 lb 78.5 / 142.4 kg |
| 170 lb 77.1 kg | 62 / 150 lb 28.1 / 68 kg | 97 / 194 lb 44 / 88 kg | 137 / 256 lb 62.1 / 116.1 kg | 180 / 327 lb 81.6 / 148.3 kg |
| 180 lb 81.6 kg | 65 / 156 lb 29.5 / 70.8 kg | 101 / 202 lb 45.8 / 91.6 kg | 143 / 266 lb 64.9 / 120.7 kg | 187 / 340 lb 84.8 / 154.2 kg |
| 190 lb 86.2 kg | 67 / 162 lb 30.4 / 73.5 kg | 105 / 209 lb 47.6 / 94.8 kg | 148 / 276 lb 67.1 / 125.2 kg | 194 / 352 lb 88 / 159.7 kg |
| 200 lb 90.7 kg | 69 / 168 lb 31.3 / 76.2 kg | 109 / 216 lb 49.4 / 98 kg | 153 / 286 lb 69.4 / 129.7 kg | 201 / 364 lb 91.2 / 165.1 kg |
| 210 lb 95.3 kg | 72 / 173 lb 32.7 / 78.5 kg | 112 / 223 lb 50.8 / 101.2 kg | 158 / 295 lb 71.7 / 133.8 kg | 207 / 376 lb 93.9 / 170.6 kg |
| 220 lb 99.8 kg | 74 / 179 lb 33.6 / 81.2 kg | 116 / 230 lb 52.6 / 104.3 kg | 163 / 304 lb 73.9 / 137.9 kg | 214 / 388 lb 97.1 / 176 kg |
| 230 lb 104.3 kg | 76 / 184 lb 34.5 / 83.5 kg | 119 / 237 lb 54 / 107.5 kg | 168 / 313 lb 76.2 / 142 kg | 220 / 400 lb 99.8 / 181.4 kg |
| 240 lb 108.9 kg | 78 / 189 lb 35.4 / 85.7 kg | 123 / 244 lb 55.8 / 110.7 kg | 173 / 323 lb 78.5 / 146.5 kg | 227 / 411 lb 103 / 186.4 kg |
| 250 lb 113.4 kg | 80 / 195 lb 36.3 / 88.5 kg | 126 / 251 lb 57.2 / 113.9 kg | 178 / 331 lb 80.7 / 150.1 kg | 233 / 423 lb 105.7 / 191.9 kg |
| 260 lb 117.9 kg | 83 / 200 lb 37.6 / 90.7 kg | 129 / 258 lb 58.5 / 117 kg | 182 / 340 lb 82.6 / 154.2 kg | 239 / 434 lb 108.4 / 196.9 kg |
| 270 lb 122.5 kg | 85 / 205 lb 38.6 / 93 kg | 133 / 264 lb 60.3 / 119.7 kg | 187 / 349 lb 84.8 / 158.3 kg | 245 / 445 lb 111.1 / 201.8 kg |
| 280 lb 127 kg | 87 / 210 lb 39.5 / 95.3 kg | 136 / 271 lb 61.7 / 122.9 kg | 192 / 357 lb 87.1 / 161.9 kg | 251 / 456 lb 113.9 / 206.8 kg |
| 290 lb 131.5 kg | 89 / 215 lb 40.4 / 97.5 kg | 139 / 277 lb 63 / 125.6 kg | 196 / 366 lb 88.9 / 166 kg | 257 / 467 lb 116.6 / 211.8 kg |
| 300 lb 136.1 kg | 91 / 220 lb 41.3 / 99.8 kg | 142 / 283 lb 64.4 / 128.4 kg | 201 / 374 lb 91.2 / 169.6 kg | 263 / 477 lb 119.3 / 216.4 kg |
Women’s Leg Extension vs Barbell Front Squat Standards
How to read the table: The first number is Leg Extension; the second is Barbell Front Squat. 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 | 29 / 86 lb 13.2 / 39 kg | 46 / 114 lb 20.9 / 51.7 kg | 69 / 149 lb 31.3 / 67.6 kg | 89 / 189 lb 40.4 / 85.7 kg |
| 110 lb 49.9 kg | 31 / 92 lb 14.1 / 41.7 kg | 49 / 122 lb 22.2 / 55.3 kg | 73 / 159 lb 33.1 / 72.1 kg | 95 / 202 lb 43.1 / 91.6 kg |
| 120 lb 54.4 kg | 33 / 97 lb 15 / 44 kg | 52 / 129 lb 23.6 / 58.5 kg | 78 / 168 lb 35.4 / 76.2 kg | 101 / 214 lb 45.8 / 97.1 kg |
| 130 lb 59 kg | 35 / 103 lb 15.9 / 46.7 kg | 55 / 136 lb 24.9 / 61.7 kg | 82 / 177 lb 37.2 / 80.3 kg | 106 / 225 lb 48.1 / 102.1 kg |
| 140 lb 63.5 kg | 36 / 108 lb 16.3 / 49 kg | 57 / 143 lb 25.9 / 64.9 kg | 86 / 186 lb 39 / 84.4 kg | 112 / 237 lb 50.8 / 107.5 kg |
| 150 lb 68 kg | 38 / 113 lb 17.2 / 51.3 kg | 60 / 150 lb 27.2 / 68 kg | 90 / 195 lb 40.8 / 88.5 kg | 117 / 248 lb 53.1 / 112.5 kg |
| 160 lb 72.6 kg | 40 / 118 lb 18.1 / 53.5 kg | 63 / 157 lb 28.6 / 71.2 kg | 94 / 204 lb 42.6 / 92.5 kg | 122 / 259 lb 55.3 / 117.5 kg |
| 170 lb 77.1 kg | 41 / 123 lb 18.6 / 55.8 kg | 65 / 163 lb 29.5 / 73.9 kg | 98 / 212 lb 44.5 / 96.2 kg | 127 / 270 lb 57.6 / 122.5 kg |
| 180 lb 81.6 kg | 43 / 128 lb 19.5 / 58.1 kg | 68 / 169 lb 30.8 / 76.7 kg | 102 / 220 lb 46.3 / 99.8 kg | 132 / 280 lb 59.9 / 127 kg |
| 190 lb 86.2 kg | 44 / 132 lb 20 / 59.9 kg | 70 / 176 lb 31.8 / 79.8 kg | 105 / 228 lb 47.6 / 103.4 kg | 137 / 290 lb 62.1 / 131.5 kg |
| 200 lb 90.7 kg | 46 / 137 lb 20.9 / 62.1 kg | 73 / 182 lb 33.1 / 82.6 kg | 109 / 236 lb 49.4 / 107 kg | 142 / 300 lb 64.4 / 136.1 kg |
| 210 lb 95.3 kg | 48 / 141 lb 21.8 / 64 kg | 75 / 188 lb 34 / 85.3 kg | 113 / 244 lb 51.3 / 110.7 kg | 146 / 310 lb 66.2 / 140.6 kg |
| 220 lb 99.8 kg | 49 / 146 lb 22.2 / 66.2 kg | 77 / 194 lb 34.9 / 88 kg | 116 / 252 lb 52.6 / 114.3 kg | 151 / 320 lb 68.5 / 145.1 kg |
| 230 lb 104.3 kg | 51 / 150 lb 23.1 / 68 kg | 80 / 199 lb 36.3 / 90.3 kg | 120 / 259 lb 54.4 / 117.5 kg | 156 / 330 lb 70.8 / 149.7 kg |
| 240 lb 108.9 kg | 52 / 155 lb 23.6 / 70.3 kg | 82 / 205 lb 37.2 / 93 kg | 123 / 267 lb 55.8 / 121.1 kg | 160 / 339 lb 72.6 / 153.8 kg |
How Your Leg Extension vs Barbell Front Squat 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 leg extension strength level
The leg extension standards use the sex-specific standards from the individual Leg Extension 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 extend more displayed resistance without requiring strength to increase pound for pound.
3. Find the barbell front squat strength level
The standards use the sex-specific front squat 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 squat 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 leg extension | Adjust leg extension targets to exact bodyweight with the two-thirds rule. |
| Rate the barbell front squat | Use total-barbell estimated max and adjust 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 Leg Extension and Barbell Front Squat 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 front squat standard is higher; below zero means the leg extension 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.
52.6 → 97.1 kg from 120 to 300 lb bodyweight.
How to read the table: Every number is the barbell front squat standard minus the leg extension standard. A plus sign means the barbell front squat standard is higher. A minus sign means the leg extension standard is higher.
| Bodyweight | Novice | Intermediate | Advanced | Elite |
|---|---|---|---|---|
| 120 lb 54.4 kg | +70 lb +31.8 kg | +77 lb +35 kg | +94 lb +42.7 kg | +116 lb +52.6 kg |
| 130 lb 59 kg | +74 lb +33.6 kg | +80 lb +36.3 kg | +99 lb +44.9 kg | +122 lb +55.3 kg |
| 140 lb 63.5 kg | +77 lb +35 kg | +85 lb +38.6 kg | +104 lb +47.2 kg | +129 lb +58.5 kg |
| 150 lb 68 kg | +81 lb +36.7 kg | +89 lb +40.4 kg | +110 lb +49.8 kg | +135 lb +61.2 kg |
| 160 lb 72.6 kg | +84 lb +38.1 kg | +92 lb +41.8 kg | +114 lb +51.7 kg | +141 lb +63.9 kg |
| 170 lb 77.1 kg | +88 lb +39.9 kg | +97 lb +44 kg | +119 lb +54 kg | +147 lb +66.7 kg |
| 180 lb 81.6 kg | +91 lb +41.3 kg | +101 lb +45.8 kg | +123 lb +55.8 kg | +153 lb +69.4 kg |
| 190 lb 86.2 kg | +95 lb +43.1 kg | +104 lb +47.2 kg | +128 lb +58.1 kg | +158 lb +71.7 kg |
| 200 lb 90.7 kg | +99 lb +44.9 kg | +107 lb +48.6 kg | +133 lb +60.3 kg | +163 lb +73.9 kg |
| 210 lb 95.3 kg | +101 lb +45.8 kg | +111 lb +50.4 kg | +137 lb +62.1 kg | +169 lb +76.7 kg |
| 220 lb 99.8 kg | +105 lb +47.6 kg | +114 lb +51.7 kg | +141 lb +64 kg | +174 lb +78.9 kg |
| 230 lb 104.3 kg | +108 lb +49 kg | +118 lb +53.5 kg | +145 lb +65.8 kg | +180 lb +81.6 kg |
| 240 lb 108.9 kg | +111 lb +50.3 kg | +121 lb +54.9 kg | +150 lb +68 kg | +184 lb +83.4 kg |
| 250 lb 113.4 kg | +115 lb +52.2 kg | +125 lb +56.7 kg | +153 lb +69.4 kg | +190 lb +86.2 kg |
| 260 lb 117.9 kg | +117 lb +53.1 kg | +129 lb +58.5 kg | +158 lb +71.6 kg | +195 lb +88.5 kg |
| 270 lb 122.5 kg | +120 lb +54.4 kg | +131 lb +59.4 kg | +162 lb +73.5 kg | +200 lb +90.7 kg |
| 280 lb 127 kg | +123 lb +55.8 kg | +135 lb +61.2 kg | +165 lb +74.8 kg | +205 lb +92.9 kg |
| 290 lb 131.5 kg | +126 lb +57.1 kg | +138 lb +62.6 kg | +170 lb +77.1 kg | +210 lb +95.2 kg |
| 300 lb 136.1 kg | +129 lb +58.5 kg | +141 lb +64 kg | +173 lb +78.4 kg | +214 lb +97.1 kg |
How Women’s Leg Extension and Barbell Front Squat Standards Differ
What the women’s data shows:
The standards come closest at 100 lb.
Novice, Intermediate, Advanced, and Elite at every displayed bodyweight.
45.3 → 81.2 kg from 100 to 240 lb bodyweight.
How to read the table: Every number is the barbell front squat standard minus the leg extension standard. A plus sign means the barbell front squat standard is higher. A minus sign means the leg extension standard is higher.
| Bodyweight | Novice | Intermediate | Advanced | Elite |
|---|---|---|---|---|
| 100 lb 45.4 kg | +57 lb +25.8 kg | +68 lb +30.8 kg | +80 lb +36.3 kg | +100 lb +45.3 kg |
| 110 lb 49.9 kg | +61 lb +27.6 kg | +73 lb +33.1 kg | +86 lb +39 kg | +107 lb +48.5 kg |
| 120 lb 54.4 kg | +64 lb +29 kg | +77 lb +34.9 kg | +90 lb +40.8 kg | +113 lb +51.3 kg |
| 130 lb 59 kg | +68 lb +30.8 kg | +81 lb +36.8 kg | +95 lb +43.1 kg | +119 lb +54 kg |
| 140 lb 63.5 kg | +72 lb +32.7 kg | +86 lb +39 kg | +100 lb +45.4 kg | +125 lb +56.7 kg |
| 150 lb 68 kg | +75 lb +34.1 kg | +90 lb +40.8 kg | +105 lb +47.7 kg | +131 lb +59.4 kg |
| 160 lb 72.6 kg | +78 lb +35.4 kg | +94 lb +42.6 kg | +110 lb +49.9 kg | +137 lb +62.2 kg |
| 170 lb 77.1 kg | +82 lb +37.2 kg | +98 lb +44.4 kg | +114 lb +51.7 kg | +143 lb +64.9 kg |
| 180 lb 81.6 kg | +85 lb +38.6 kg | +101 lb +45.9 kg | +118 lb +53.5 kg | +148 lb +67.1 kg |
| 190 lb 86.2 kg | +88 lb +39.9 kg | +106 lb +48 kg | +123 lb +55.8 kg | +153 lb +69.4 kg |
| 200 lb 90.7 kg | +91 lb +41.2 kg | +109 lb +49.5 kg | +127 lb +57.6 kg | +158 lb +71.7 kg |
| 210 lb 95.3 kg | +93 lb +42.2 kg | +113 lb +51.3 kg | +131 lb +59.4 kg | +164 lb +74.4 kg |
| 220 lb 99.8 kg | +97 lb +44 kg | +117 lb +53.1 kg | +136 lb +61.7 kg | +169 lb +76.6 kg |
| 230 lb 104.3 kg | +99 lb +44.9 kg | +119 lb +54 kg | +139 lb +63.1 kg | +174 lb +78.9 kg |
| 240 lb 108.9 kg | +103 lb +46.7 kg | +123 lb +55.8 kg | +144 lb +65.3 kg | +179 lb +81.2 kg |
Leg Extension and Barbell Front Squat Exercises Used by This Calculator
This calculator uses a bilateral machine leg extension and a full-depth barbell front squat. Use strict canonical Leg Extension and Barbell Front Squat tests. Do not mix variations, assistance, partial range, momentum, or different load conventions.
Use a strict bilateral leg extension
Use both legs on the same dedicated machine and setup. Keep the hips, thighs, and torso stable, extend from a controlled flexed-knee start to a near-straight finish, and return under control. Do not enter per-leg load, a single-leg rep, partial pulse, bounced stack, cable or band extension, squat, or leg press.
Keep the bar in the front rack through full depth
Enter the bar plus all plates. Support the bar across the front of the shoulders, descend under control until the hip crease is below the top of the knee, and stand to full lockout while retaining the front rack. Do not enter per-side plates, back squats, Zercher or goblet squats, Smith or machine squats, partial reps, assisted reps, or reps that lose the front rack.
Enter one recent Leg Extension result and one recent Barbell Front Squat result
Enter the canonical working weight and a whole number of strict repetitions for each exercise. Pounds and kilograms can be mixed.
Related Tools
- Leg Extension — View the individual Leg Extension standards and next strength-level target.
- Barbell Front Squat — View the individual Barbell Front Squat standards and next strength-level target.
- Seated Leg Curl — 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.
- Leg Press (45° Sled) — Use this related standards tool to compare a registry-approved neighboring exercise without mixing its result into this comparison.
- Machine Hack Squat — Use this related standards tool to compare a registry-approved neighboring exercise without mixing its result into this comparison.