Endura

Barbell Box Squats vs Belt Squat Split Squat Strength Standards

Compare your barbell box squats and belt squat split 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.

Use each exercise's canonical input: External load for Barbell Box Squats and Selected or loaded belt-squat resistance for Belt Squat Split Squat. Use a strict, repeatable barbell box squats test using the canonical setup, range, and finish rules and a strict belt squat split squat using the same resistance, setup, range, and execution on both legs and total valid reps across both legs combined. 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.

Barbell Box Squats vs Belt Squat Split Squat Strength Standards by Bodyweight

Use these tables to compare the estimated one-rep max required for the barbell box squats and belt squat split 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 barbell box squats and belt squat split 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 Barbell Box Squats / Belt Squat Split 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 Barbell Box Squats vs Belt Squat Split Squat Standards

How to read the table: The first number is Barbell Box Squats; the second is Belt Squat Split Squat. Each number is the lowest estimated one-rep max needed to reach that strength level. Scroll horizontally on smaller screens.

BodyweightNoviceIntermediateAdvancedElite
120 lb
54.4 kg
147 / 77 lb
66.7 / 34.9 kg
189 / 112 lb
85.7 / 50.8 kg
238 / 154 lb
108 / 69.9 kg
286 / 196 lb
129.7 / 88.9 kg
130 lb
59 kg
155 / 82 lb
70.3 / 37.2 kg
200 / 118 lb
90.7 / 53.5 kg
251 / 162 lb
113.9 / 73.5 kg
302 / 207 lb
137 / 93.9 kg
140 lb
63.5 kg
163 / 86 lb
73.9 / 39 kg
210 / 124 lb
95.3 / 56.2 kg
264 / 171 lb
119.7 / 77.6 kg
317 / 217 lb
143.8 / 98.4 kg
150 lb
68 kg
171 / 90 lb
77.6 / 40.8 kg
220 / 130 lb
99.8 / 59 kg
276 / 179 lb
125.2 / 81.2 kg
332 / 227 lb
150.6 / 103 kg
160 lb
72.6 kg
178 / 94 lb
80.7 / 42.6 kg
229 / 136 lb
103.9 / 61.7 kg
288 / 186 lb
130.6 / 84.4 kg
347 / 237 lb
157.4 / 107.5 kg
170 lb
77.1 kg
186 / 97 lb
84.4 / 44 kg
239 / 141 lb
108.4 / 64 kg
300 / 194 lb
136.1 / 88 kg
361 / 247 lb
163.7 / 112 kg
180 lb
81.6 kg
193 / 101 lb
87.5 / 45.8 kg
248 / 147 lb
112.5 / 66.7 kg
312 / 202 lb
141.5 / 91.6 kg
375 / 257 lb
170.1 / 116.6 kg
190 lb
86.2 kg
200 / 105 lb
90.7 / 47.6 kg
257 / 152 lb
116.6 / 68.9 kg
323 / 209 lb
146.5 / 94.8 kg
389 / 266 lb
176.4 / 120.7 kg
200 lb
90.7 kg
207 / 109 lb
93.9 / 49.4 kg
266 / 157 lb
120.7 / 71.2 kg
334 / 216 lb
151.5 / 98 kg
403 / 275 lb
182.8 / 124.7 kg
210 lb
95.3 kg
214 / 112 lb
97.1 / 50.8 kg
275 / 162 lb
124.7 / 73.5 kg
345 / 223 lb
156.5 / 101.2 kg
416 / 284 lb
188.7 / 128.8 kg
220 lb
99.8 kg
221 / 116 lb
100.2 / 52.6 kg
283 / 168 lb
128.4 / 76.2 kg
356 / 230 lb
161.5 / 104.3 kg
429 / 293 lb
194.6 / 132.9 kg
230 lb
104.3 kg
227 / 119 lb
103 / 54 kg
292 / 173 lb
132.4 / 78.5 kg
367 / 237 lb
166.5 / 107.5 kg
442 / 302 lb
200.5 / 137 kg
240 lb
108.9 kg
234 / 123 lb
106.1 / 55.8 kg
300 / 178 lb
136.1 / 80.7 kg
377 / 244 lb
171 / 110.7 kg
455 / 311 lb
206.4 / 141.1 kg
250 lb
113.4 kg
240 / 126 lb
108.9 / 57.2 kg
309 / 183 lb
140.2 / 83 kg
388 / 251 lb
176 / 113.9 kg
467 / 319 lb
211.8 / 144.7 kg
260 lb
117.9 kg
247 / 129 lb
112 / 58.5 kg
317 / 187 lb
143.8 / 84.8 kg
398 / 258 lb
180.5 / 117 kg
479 / 328 lb
217.3 / 148.8 kg
270 lb
122.5 kg
253 / 133 lb
114.8 / 60.3 kg
325 / 192 lb
147.4 / 87.1 kg
408 / 264 lb
185.1 / 119.7 kg
492 / 336 lb
223.2 / 152.4 kg
280 lb
127 kg
259 / 136 lb
117.5 / 61.7 kg
333 / 197 lb
151 / 89.4 kg
418 / 271 lb
189.6 / 122.9 kg
504 / 344 lb
228.6 / 156 kg
290 lb
131.5 kg
265 / 139 lb
120.2 / 63 kg
341 / 201 lb
154.7 / 91.2 kg
428 / 277 lb
194.1 / 125.6 kg
516 / 353 lb
234.1 / 160.1 kg
300 lb
136.1 kg
271 / 142 lb
122.9 / 64.4 kg
348 / 206 lb
157.9 / 93.4 kg
438 / 283 lb
198.7 / 128.4 kg
527 / 361 lb
239 / 163.7 kg

Women’s Barbell Box Squats vs Belt Squat Split Squat Standards

How to read the table: The first number is Barbell Box Squats; the second is Belt Squat Split Squat. Each number is the lowest estimated one-rep max needed to reach that strength level. Scroll horizontally on smaller screens.

BodyweightNoviceIntermediateAdvancedElite
100 lb
45.4 kg
92 / 46 lb
41.7 / 20.9 kg
121 / 69 lb
54.9 / 31.3 kg
155 / 98 lb
70.3 / 44.5 kg
189 / 126 lb
85.7 / 57.2 kg
110 lb
49.9 kg
98 / 49 lb
44.5 / 22.2 kg
128 / 73 lb
58.1 / 33.1 kg
165 / 104 lb
74.8 / 47.2 kg
202 / 134 lb
91.6 / 60.8 kg
120 lb
54.4 kg
103 / 52 lb
46.7 / 23.6 kg
136 / 78 lb
61.7 / 35.4 kg
175 / 110 lb
79.4 / 49.9 kg
214 / 142 lb
97.1 / 64.4 kg
130 lb
59 kg
109 / 55 lb
49.4 / 24.9 kg
144 / 82 lb
65.3 / 37.2 kg
185 / 116 lb
83.9 / 52.6 kg
225 / 150 lb
102.1 / 68 kg
140 lb
63.5 kg
115 / 57 lb
52.2 / 25.9 kg
151 / 86 lb
68.5 / 39 kg
194 / 122 lb
88 / 55.3 kg
237 / 158 lb
107.5 / 71.7 kg
150 lb
68 kg
120 / 60 lb
54.4 / 27.2 kg
158 / 90 lb
71.7 / 40.8 kg
203 / 128 lb
92.1 / 58.1 kg
248 / 165 lb
112.5 / 74.8 kg
160 lb
72.6 kg
125 / 63 lb
56.7 / 28.6 kg
165 / 94 lb
74.8 / 42.6 kg
212 / 134 lb
96.2 / 60.8 kg
259 / 172 lb
117.5 / 78 kg
170 lb
77.1 kg
130 / 65 lb
59 / 29.5 kg
172 / 98 lb
78 / 44.5 kg
221 / 139 lb
100.2 / 63 kg
270 / 179 lb
122.5 / 81.2 kg
180 lb
81.6 kg
136 / 68 lb
61.7 / 30.8 kg
178 / 102 lb
80.7 / 46.3 kg
229 / 145 lb
103.9 / 65.8 kg
280 / 186 lb
127 / 84.4 kg
190 lb
86.2 kg
140 / 70 lb
63.5 / 31.8 kg
185 / 105 lb
83.9 / 47.6 kg
238 / 150 lb
108 / 68 kg
290 / 193 lb
131.5 / 87.5 kg
200 lb
90.7 kg
145 / 73 lb
65.8 / 33.1 kg
191 / 109 lb
86.6 / 49.4 kg
246 / 155 lb
111.6 / 70.3 kg
300 / 200 lb
136.1 / 90.7 kg
210 lb
95.3 kg
150 / 75 lb
68 / 34 kg
198 / 113 lb
89.8 / 51.3 kg
254 / 160 lb
115.2 / 72.6 kg
310 / 206 lb
140.6 / 93.4 kg
220 lb
99.8 kg
155 / 77 lb
70.3 / 34.9 kg
204 / 116 lb
92.5 / 52.6 kg
262 / 165 lb
118.8 / 74.8 kg
320 / 213 lb
145.1 / 96.6 kg
230 lb
104.3 kg
160 / 80 lb
72.6 / 36.3 kg
210 / 120 lb
95.3 / 54.4 kg
270 / 170 lb
122.5 / 77.1 kg
330 / 219 lb
149.7 / 99.3 kg
240 lb
108.9 kg
164 / 82 lb
74.4 / 37.2 kg
216 / 123 lb
98 / 55.8 kg
278 / 175 lb
126.1 / 79.4 kg
339 / 226 lb
153.8 / 102.5 kg

How Your Barbell Box Squats vs Belt Squat Split 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 barbell box squats strength level

The standards use the sex-specific targets from the individual Barbell Box Squats 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.

3. Find the belt squat split squat strength level

The standards use the sex-specific strength levels from the individual Belt Squat Split Squat 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 move more belt-squat resistance 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.

StageWhat happens
Estimate each maxUse the entered weight for 1 rep; for 2–12 reps, keep the lower formula result.
Rate the barbell box squatsAdjust barbell box squats targets to exact bodyweight with the two-thirds rule.
Rate the belt squat split squatAdjust belt squat split squat targets to exact bodyweight with the two-thirds rule while preserving the belt-load and total-reps conventions.
Compare different levelsName the lower-level lift as the priority.
Compare matching levelsUse 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 Barbell Box Squats and Belt Squat Split 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 belt squat split squat standard is higher; below zero means the barbell box squats 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:

Novice closest match120 lb

The standards come closest at 120 lb.

Barbell Box Squats target is higher4 strength levels

Novice, Intermediate, Advanced, and Elite at every displayed bodyweight.

Elite difference90 → 166 lb

40.8 → 75.3 kg from 120 to 300 lb bodyweight.

How men’s barbell box squats and belt squat split squat standards differ by bodyweightFour colored lines show the difference in pounds between the belt squat split squat and barbell box squats standards at Novice, Intermediate, Advanced, and Elite. Zero means the two standards are equal. Above zero means the belt squat split squat standard is higher. Below zero means the barbell box squats standard is higher.NoviceIntermediateAdvancedElite−200−150−100−500+50120140160180200220240260280300Bodyweight (lb)Difference between standards (lb)

How to read the table: Every number is the belt squat split squat standard minus the barbell box squats standard. A plus sign means the belt squat split squat standard is higher. A minus sign means the barbell box squats standard is higher.

BodyweightNoviceIntermediateAdvancedElite
120 lb
54.4 kg
−70 lb
−31.8 kg
−77 lb
−34.9 kg
−84 lb
−38.1 kg
−90 lb
−40.8 kg
130 lb
59 kg
−73 lb
−33.1 kg
−82 lb
−37.2 kg
−89 lb
−40.4 kg
−95 lb
−43.1 kg
140 lb
63.5 kg
−77 lb
−34.9 kg
−86 lb
−39.1 kg
−93 lb
−42.1 kg
−100 lb
−45.4 kg
150 lb
68 kg
−81 lb
−36.8 kg
−90 lb
−40.8 kg
−97 lb
−44 kg
−105 lb
−47.6 kg
160 lb
72.6 kg
−84 lb
−38.1 kg
−93 lb
−42.2 kg
−102 lb
−46.2 kg
−110 lb
−49.9 kg
170 lb
77.1 kg
−89 lb
−40.4 kg
−98 lb
−44.4 kg
−106 lb
−48.1 kg
−114 lb
−51.7 kg
180 lb
81.6 kg
−92 lb
−41.7 kg
−101 lb
−45.8 kg
−110 lb
−49.9 kg
−118 lb
−53.5 kg
190 lb
86.2 kg
−95 lb
−43.1 kg
−105 lb
−47.7 kg
−114 lb
−51.7 kg
−123 lb
−55.7 kg
200 lb
90.7 kg
−98 lb
−44.5 kg
−109 lb
−49.5 kg
−118 lb
−53.5 kg
−128 lb
−58.1 kg
210 lb
95.3 kg
−102 lb
−46.3 kg
−113 lb
−51.2 kg
−122 lb
−55.3 kg
−132 lb
−59.9 kg
220 lb
99.8 kg
−105 lb
−47.6 kg
−115 lb
−52.2 kg
−126 lb
−57.2 kg
−136 lb
−61.7 kg
230 lb
104.3 kg
−108 lb
−49 kg
−119 lb
−53.9 kg
−130 lb
−59 kg
−140 lb
−63.5 kg
240 lb
108.9 kg
−111 lb
−50.3 kg
−122 lb
−55.4 kg
−133 lb
−60.3 kg
−144 lb
−65.3 kg
250 lb
113.4 kg
−114 lb
−51.7 kg
−126 lb
−57.2 kg
−137 lb
−62.1 kg
−148 lb
−67.1 kg
260 lb
117.9 kg
−118 lb
−53.5 kg
−130 lb
−59 kg
−140 lb
−63.5 kg
−151 lb
−68.5 kg
270 lb
122.5 kg
−120 lb
−54.5 kg
−133 lb
−60.3 kg
−144 lb
−65.4 kg
−156 lb
−70.8 kg
280 lb
127 kg
−123 lb
−55.8 kg
−136 lb
−61.6 kg
−147 lb
−66.7 kg
−160 lb
−72.6 kg
290 lb
131.5 kg
−126 lb
−57.2 kg
−140 lb
−63.5 kg
−151 lb
−68.5 kg
−163 lb
−74 kg
300 lb
136.1 kg
−129 lb
−58.5 kg
−142 lb
−64.5 kg
−155 lb
−70.3 kg
−166 lb
−75.3 kg

How Women’s Barbell Box Squats and Belt Squat Split Squat Standards Differ

What the women’s data shows:

Novice closest match100 lb

The standards come closest at 100 lb.

Barbell Box Squats target is higher4 strength levels

Novice, Intermediate, Advanced, and Elite at every displayed bodyweight.

Elite difference63 → 113 lb

28.5 → 51.3 kg from 100 to 240 lb bodyweight.

How women’s barbell box squats and belt squat split squat standards differ by bodyweightFour colored lines show the difference in pounds between the belt squat split squat and barbell box squats standards at Novice, Intermediate, Advanced, and Elite. Zero means the two standards are equal. Above zero means the belt squat split squat standard is higher. Below zero means the barbell box squats standard is higher.NoviceIntermediateAdvancedElite−150−100−500+50100120140160180200220240Bodyweight (lb)Difference between standards (lb)

How to read the table: Every number is the belt squat split squat standard minus the barbell box squats standard. A plus sign means the belt squat split squat standard is higher. A minus sign means the barbell box squats standard is higher.

BodyweightNoviceIntermediateAdvancedElite
100 lb
45.4 kg
−46 lb
−20.8 kg
−52 lb
−23.6 kg
−57 lb
−25.8 kg
−63 lb
−28.5 kg
110 lb
49.9 kg
−49 lb
−22.3 kg
−55 lb
−25 kg
−61 lb
−27.6 kg
−68 lb
−30.8 kg
120 lb
54.4 kg
−51 lb
−23.1 kg
−58 lb
−26.3 kg
−65 lb
−29.5 kg
−72 lb
−32.7 kg
130 lb
59 kg
−54 lb
−24.5 kg
−62 lb
−28.1 kg
−69 lb
−31.3 kg
−75 lb
−34.1 kg
140 lb
63.5 kg
−58 lb
−26.3 kg
−65 lb
−29.5 kg
−72 lb
−32.7 kg
−79 lb
−35.8 kg
150 lb
68 kg
−60 lb
−27.2 kg
−68 lb
−30.9 kg
−75 lb
−34 kg
−83 lb
−37.7 kg
160 lb
72.6 kg
−62 lb
−28.1 kg
−71 lb
−32.2 kg
−78 lb
−35.4 kg
−87 lb
−39.5 kg
170 lb
77.1 kg
−65 lb
−29.5 kg
−74 lb
−33.5 kg
−82 lb
−37.2 kg
−91 lb
−41.3 kg
180 lb
81.6 kg
−68 lb
−30.9 kg
−76 lb
−34.4 kg
−84 lb
−38.1 kg
−94 lb
−42.6 kg
190 lb
86.2 kg
−70 lb
−31.7 kg
−80 lb
−36.3 kg
−88 lb
−40 kg
−97 lb
−44 kg
200 lb
90.7 kg
−72 lb
−32.7 kg
−82 lb
−37.2 kg
−91 lb
−41.3 kg
−100 lb
−45.4 kg
210 lb
95.3 kg
−75 lb
−34 kg
−85 lb
−38.5 kg
−94 lb
−42.6 kg
−104 lb
−47.2 kg
220 lb
99.8 kg
−78 lb
−35.4 kg
−88 lb
−39.9 kg
−97 lb
−44 kg
−107 lb
−48.5 kg
230 lb
104.3 kg
−80 lb
−36.3 kg
−90 lb
−40.9 kg
−100 lb
−45.4 kg
−111 lb
−50.4 kg
240 lb
108.9 kg
−82 lb
−37.2 kg
−93 lb
−42.2 kg
−103 lb
−46.7 kg
−113 lb
−51.3 kg

Barbell Box Squats and Belt Squat Split Squat Exercises Used by This Calculator

This calculator uses a strict barbell box squats and a strict belt squat split squat. Use strict canonical Barbell Box Squats and Belt Squat Split Squat tests. Do not mix variations, assistance, partial range, momentum, or different load conventions.

Use a strict, repeatable Barbell Box Squats

Follow the individual Barbell Box Squats calculator’s canonical setup, load convention, range of motion, and finish rules. Keep the same setup when retesting.

Enter the belt-squat resistance and total reps across both legs

Use the same belt-squat station, resistance, stance, range, and strict execution on each leg. Enter the selected or loaded resistance attached through the belt and total valid reps across both legs combined. Do not include bodyweight or substitute a bilateral belt squat, lunge, Bulgarian split squat, free-weight split squat, rail-assisted rep, machine-stop rebound, or partial rep.

Enter one recent Barbell Box Squats result and one recent Belt Squat Split Squat result

Use each exercise’s canonical input: External load for Barbell Box Squats and Selected or loaded belt-squat resistance for Belt Squat Split Squat.

  • Barbell Box Squats — View the individual Barbell Box Squats standards and next strength-level target.
  • Belt Squat Split Squat — View the individual Belt Squat Split Squat standards and next strength-level target.
  • Barbell Back Squat (High-Bar, Full Depth) — Use this related standards tool to compare a registry-approved neighboring exercise without mixing its result into this comparison.
  • Barbell Squat 1RM Calculator — Use this related standards tool to compare a registry-approved neighboring exercise without mixing its result into this comparison.
  • Barbell Front Squat — Use this related standards tool to compare a registry-approved neighboring exercise without mixing its result into this comparison.
  • Smith Machine Back Squat — Use this related standards tool to compare a registry-approved neighboring exercise without mixing its result into this comparison.
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