Endura

Deadlift vs Smith Machine Stiff Leg Deadlift Strength Standards

Compare your barbell deadlift and smith machine stiff leg deadlift against strength standards for your sex and bodyweight. Test each lift with 1–12 strict reps to see estimated one-rep maxes, strength levels, next targets, and priority.

First lift: total barbell weight and 1–12 strict reps. Second lift: weight used and 1–12 strict reps. Pounds or kilograms. For the first exercise, start every rep with the bar motionless on the floor and finish standing with the hips and knees straight. For the second exercise, hinge with minimal knee bend from the specified low start to standing without Romanian-deadlift drift, conventional-deadlift drift, bounce, or partial range. Each lift is compared with its own standards, so the heavier lift is not automatically the stronger one.

Barbell Deadlift vs Smith Machine Stiff Leg Deadlift Strength Standards

These bodyweight tables place the barbell deadlift and smith machine stiff leg deadlift targets side by side from Novice through Elite. Use them to compare standards, not to force a particular ratio between the lifts.

Find the closest row in the men’s or women’s table. Every target lists Barbell Deadlift / Smith Machine Stiff Leg Deadlift, pounds first and kilograms second. Enter your own sets above for exact ratings without testing a true one-rep max.

Men’s Barbell Deadlift vs Smith Machine Stiff Leg Deadlift Standards

How to read the table: Find the closest bodyweight, then use the labeled exercise row. Every strength-level entry shows one target with pounds first and kilograms beneath it.

Men’s Barbell Deadlift vs Smith Machine Stiff Leg Deadlift standards
BodyweightExerciseNoviceIntermediateAdvancedElite
120 lb54.4 kgBarbell Deadlift252 lb114.3 kg322 lb146.1 kg371 lb168.3 kg420 lb190.5 kg
Smith Machine Stiff Leg Deadlift81 lb36.7 kg115 lb52.2 kg154 lb69.9 kg196 lb88.9 kg
130 lb59 kgBarbell Deadlift266 lb120.7 kg339 lb153.8 kg391 lb177.4 kg443 lb200.9 kg
Smith Machine Stiff Leg Deadlift85 lb38.6 kg121 lb54.9 kg162 lb73.5 kg207 lb93.9 kg
140 lb63.5 kgBarbell Deadlift279 lb126.6 kg357 lb161.9 kg411 lb186.4 kg465 lb210.9 kg
Smith Machine Stiff Leg Deadlift90 lb40.8 kg127 lb57.6 kg171 lb77.6 kg217 lb98.4 kg
150 lb68 kgBarbell Deadlift292 lb132.4 kg373 lb169.2 kg431 lb195.5 kg487 lb220.9 kg
Smith Machine Stiff Leg Deadlift94 lb42.6 kg133 lb60.3 kg179 lb81.2 kg227 lb103 kg
160 lb72.6 kgBarbell Deadlift305 lb138.3 kg390 lb176.9 kg449 lb203.7 kg508 lb230.4 kg
Smith Machine Stiff Leg Deadlift98 lb44.5 kg139 lb63 kg186 lb84.4 kg237 lb107.5 kg
170 lb77.1 kgBarbell Deadlift318 lb144.2 kg406 lb184.2 kg468 lb212.3 kg529 lb240 kg
Smith Machine Stiff Leg Deadlift102 lb46.3 kg145 lb65.8 kg194 lb88 kg247 lb112 kg
180 lb81.6 kgBarbell Deadlift330 lb149.7 kg422 lb191.4 kg486 lb220.4 kg550 lb249.5 kg
Smith Machine Stiff Leg Deadlift106 lb48.1 kg150 lb68 kg202 lb91.6 kg257 lb116.6 kg
190 lb86.2 kgBarbell Deadlift342 lb155.1 kg437 lb198.2 kg504 lb228.6 kg570 lb258.5 kg
Smith Machine Stiff Leg Deadlift110 lb49.9 kg156 lb70.8 kg209 lb94.8 kg266 lb120.7 kg
200 lb90.7 kgBarbell Deadlift354 lb160.6 kg452 lb205 kg522 lb236.8 kg590 lb267.6 kg
Smith Machine Stiff Leg Deadlift114 lb51.7 kg161 lb73 kg216 lb98 kg275 lb124.7 kg
210 lb95.3 kgBarbell Deadlift366 lb166 kg467 lb211.8 kg539 lb244.5 kg609 lb276.2 kg
Smith Machine Stiff Leg Deadlift118 lb53.5 kg167 lb75.7 kg223 lb101.2 kg284 lb128.8 kg
220 lb99.8 kgBarbell Deadlift377 lb171 kg482 lb218.6 kg556 lb252.2 kg629 lb285.3 kg
Smith Machine Stiff Leg Deadlift121 lb54.9 kg172 lb78 kg230 lb104.3 kg293 lb132.9 kg
230 lb104.3 kgBarbell Deadlift388 lb176 kg496 lb225 kg572 lb259.5 kg647 lb293.5 kg
Smith Machine Stiff Leg Deadlift125 lb56.7 kg177 lb80.3 kg237 lb107.5 kg302 lb137 kg
240 lb108.9 kgBarbell Deadlift400 lb181.4 kg511 lb231.8 kg589 lb267.2 kg666 lb302.1 kg
Smith Machine Stiff Leg Deadlift129 lb58.5 kg182 lb82.6 kg244 lb110.7 kg311 lb141.1 kg
250 lb113.4 kgBarbell Deadlift411 lb186.4 kg525 lb238.1 kg605 lb274.4 kg684 lb310.3 kg
Smith Machine Stiff Leg Deadlift132 lb59.9 kg187 lb84.8 kg251 lb113.9 kg319 lb144.7 kg
260 lb117.9 kgBarbell Deadlift422 lb191.4 kg539 lb244.5 kg621 lb281.7 kg703 lb318.9 kg
Smith Machine Stiff Leg Deadlift136 lb61.7 kg192 lb87.1 kg258 lb117 kg328 lb148.8 kg
270 lb122.5 kgBarbell Deadlift432 lb196 kg552 lb250.4 kg637 lb288.9 kg720 lb326.6 kg
Smith Machine Stiff Leg Deadlift139 lb63 kg197 lb89.4 kg264 lb119.7 kg336 lb152.4 kg
280 lb127 kgBarbell Deadlift443 lb200.9 kg566 lb256.7 kg653 lb296.2 kg738 lb334.8 kg
Smith Machine Stiff Leg Deadlift142 lb64.4 kg202 lb91.6 kg271 lb122.9 kg344 lb156 kg
290 lb131.5 kgBarbell Deadlift453 lb205.5 kg579 lb262.6 kg668 lb303 kg756 lb342.9 kg
Smith Machine Stiff Leg Deadlift146 lb66.2 kg207 lb93.9 kg277 lb125.6 kg353 lb160.1 kg
300 lb136.1 kgBarbell Deadlift464 lb210.5 kg593 lb269 kg683 lb309.8 kg773 lb350.6 kg
Smith Machine Stiff Leg Deadlift149 lb67.6 kg212 lb96.2 kg283 lb128.4 kg361 lb163.7 kg

Women’s Barbell Deadlift vs Smith Machine Stiff Leg Deadlift Standards

How to read the table: Find the closest bodyweight, then use the labeled exercise row. Every strength-level entry shows one target with pounds first and kilograms beneath it.

Women’s Barbell Deadlift vs Smith Machine Stiff Leg Deadlift standards
BodyweightExerciseNoviceIntermediateAdvancedElite
100 lb45.4 kgBarbell Deadlift149 lb67.6 kg201 lb91.2 kg240 lb108.9 kg275 lb124.7 kg
Smith Machine Stiff Leg Deadlift43 lb19.5 kg64 lb29 kg89 lb40.4 kg117 lb53.1 kg
110 lb49.9 kgBarbell Deadlift159 lb72.1 kg214 lb97.1 kg256 lb116.1 kg293 lb132.9 kg
Smith Machine Stiff Leg Deadlift46 lb20.9 kg68 lb30.8 kg95 lb43.1 kg124 lb56.2 kg
120 lb54.4 kgBarbell Deadlift168 lb76.2 kg227 lb103 kg271 lb122.9 kg310 lb140.6 kg
Smith Machine Stiff Leg Deadlift49 lb22.2 kg72 lb32.7 kg101 lb45.8 kg132 lb59.9 kg
130 lb59 kgBarbell Deadlift177 lb80.3 kg239 lb108.4 kg286 lb129.7 kg327 lb148.3 kg
Smith Machine Stiff Leg Deadlift52 lb23.6 kg76 lb34.5 kg106 lb48.1 kg139 lb63 kg
140 lb63.5 kgBarbell Deadlift186 lb84.4 kg251 lb113.9 kg301 lb136.5 kg344 lb156 kg
Smith Machine Stiff Leg Deadlift54 lb24.5 kg80 lb36.3 kg112 lb50.8 kg146 lb66.2 kg
150 lb68 kgBarbell Deadlift195 lb88.5 kg263 lb119.3 kg315 lb142.9 kg360 lb163.3 kg
Smith Machine Stiff Leg Deadlift57 lb25.9 kg84 lb38.1 kg117 lb53.1 kg153 lb69.4 kg
160 lb72.6 kgBarbell Deadlift204 lb92.5 kg275 lb124.7 kg329 lb149.2 kg376 lb170.6 kg
Smith Machine Stiff Leg Deadlift60 lb27.2 kg88 lb39.9 kg122 lb55.3 kg160 lb72.6 kg
170 lb77.1 kgBarbell Deadlift212 lb96.2 kg286 lb129.7 kg342 lb155.1 kg391 lb177.4 kg
Smith Machine Stiff Leg Deadlift62 lb28.1 kg91 lb41.3 kg127 lb57.6 kg166 lb75.3 kg
180 lb81.6 kgBarbell Deadlift220 lb99.8 kg297 lb134.7 kg356 lb161.5 kg407 lb184.6 kg
Smith Machine Stiff Leg Deadlift64 lb29 kg95 lb43.1 kg132 lb59.9 kg173 lb78.5 kg
190 lb86.2 kgBarbell Deadlift228 lb103.4 kg308 lb139.7 kg369 lb167.4 kg421 lb191 kg
Smith Machine Stiff Leg Deadlift67 lb30.4 kg98 lb44.5 kg137 lb62.1 kg179 lb81.2 kg
200 lb90.7 kgBarbell Deadlift236 lb107 kg319 lb144.7 kg382 lb173.3 kg436 lb197.8 kg
Smith Machine Stiff Leg Deadlift69 lb31.3 kg102 lb46.3 kg142 lb64.4 kg185 lb83.9 kg
210 lb95.3 kgBarbell Deadlift244 lb110.7 kg329 lb149.2 kg394 lb178.7 kg451 lb204.6 kg
Smith Machine Stiff Leg Deadlift71 lb32.2 kg105 lb47.6 kg146 lb66.2 kg191 lb86.6 kg
220 lb99.8 kgBarbell Deadlift252 lb114.3 kg340 lb154.2 kg407 lb184.6 kg465 lb210.9 kg
Smith Machine Stiff Leg Deadlift74 lb33.6 kg108 lb49 kg151 lb68.5 kg198 lb89.8 kg
230 lb104.3 kgBarbell Deadlift259 lb117.5 kg350 lb158.8 kg419 lb190.1 kg479 lb217.3 kg
Smith Machine Stiff Leg Deadlift76 lb34.5 kg112 lb50.8 kg156 lb70.8 kg203 lb92.1 kg
240 lb108.9 kgBarbell Deadlift267 lb121.1 kg360 lb163.3 kg431 lb195.5 kg492 lb223.2 kg
Smith Machine Stiff Leg Deadlift78 lb35.4 kg115 lb52.2 kg160 lb72.6 kg209 lb94.8 kg

How Your Barbell Deadlift vs Smith Machine Stiff Leg Deadlift Result Is Calculated

The calculator estimates both one-rep maxes, rates each one against its exercise and bodyweight standards, and then compares the two ratings.

1. Estimate a one-rep max from each set

A one-rep set uses the entered weight. For 2–12 reps, both formulas are calculated and the lower estimate is retained.

  • Epley: weight × (1 + reps ÷ 30)
  • Brzycki: weight × 36 ÷ (37 − reps)

Set quality matters for this Barbell Deadlift vs Smith Machine Stiff Leg Deadlift comparison. Enter technically consistent, challenging sets, and prefer lower-rep results when practical because the estimate extends less far beyond the performed set.

2. Find the barbell deadlift strength level

The deadlift data uses lifters ages 18–39. Targets begin at 190 lb for men and 150 lb for women, then adjust to exact bodyweight with reference target × (user bodyweight ÷ reference bodyweight) to the two-thirds power.

This adjustment expects larger lifters to move more weight, but it does not increase the target pound for pound with bodyweight.

3. Find the smith machine stiff leg deadlift strength level

For smith machine stiff leg deadlift, the individual exercise thresholds start from reference bodyweights of 190 lb for men and 150 lb for women. Exact-bodyweight targets use reference target × (user bodyweight ÷ reference bodyweight) to the two-thirds power.

The target rises more slowly than bodyweight so larger lifters are expected to lift more without requiring strength to increase pound for pound.

4. Compare the two results

Strength level decides the comparison first. Matching levels remain Balanced unless progress toward the next target differs by at least 10 points.

Treat the result as a training comparison rather than an explanation of why one lift trails. Set quality, fatigue, skill, and training exposure all matter. Age range is recorded anonymously but does not change these standards.

StageWhat happens
Estimate each maxUse the entered weight for 1 rep; for 2–12 reps, keep the lower formula result.
Rate the barbell deadliftAdjust barbell deadlift targets to exact bodyweight with the two-thirds rule.
Rate the smith machine stiff leg deadliftUse the exercise-specific estimated max and adjust targets to exact bodyweight with the two-thirds scaling rule.
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.

Enter both sets above to see the estimated maxes, assigned levels, next-level targets, and comparison result.

How Men’s Barbell Deadlift and Smith Machine Stiff Leg Deadlift Standards Differ

What the men’s data shows:

Novice closest match120 lb

The standards come closest at 120 lb.

Barbell Deadlift target is higher4 strength levels

Across all listed bodyweights, Novice, Intermediate, Advanced, and Elite keep the same higher-target direction.

Elite difference224 → 412 lb

Across 120–300 lb bodyweight, the Elite gap changes from 101.6 to 186.9 kg.

How to read this chart: Choose a strength level and follow its line across bodyweight. Values show the Smith Machine Stiff Leg Deadlift standard minus the Barbell Deadlift standard: zero means equal, above zero means the Smith Machine Stiff Leg Deadlift standard is higher, and below zero means the Barbell Deadlift standard is higher. Swipe horizontally on mobile. Use the standards table for exact lb/kg targets.

Line chart loading. The standards tables above contain the exact pounds and kilograms.

How Women’s Barbell Deadlift and Smith Machine Stiff Leg Deadlift Standards Differ

What the women’s data shows:

Novice closest match100 lb

The standards come closest at 100 lb.

Barbell Deadlift target is higher4 strength levels

The higher target remains with Barbell Deadlift for Novice, Intermediate, Advanced, and Elite throughout the table.

Elite difference158 → 283 lb

Across 100–240 lb bodyweight, the Elite gap changes from 71.6 to 128.4 kg.

How to read this chart: Choose a strength level and follow its line across bodyweight. Values show the Smith Machine Stiff Leg Deadlift standard minus the Barbell Deadlift standard: zero means equal, above zero means the Smith Machine Stiff Leg Deadlift standard is higher, and below zero means the Barbell Deadlift standard is higher. Swipe horizontally on mobile. Use the standards table for exact lb/kg targets.

Line chart loading. The standards tables above contain the exact pounds and kilograms.

Barbell Deadlift and Smith Machine Stiff Leg Deadlift Exercises Used by This Calculator

Compare like-for-like attempts by keeping the barbell deadlift and smith machine stiff leg deadlift setup consistent with their individual rules. Use strict, repeatable Barbell Deadlift and Smith Machine Stiff Leg Deadlift tests that follow each exercise’s setup, range of motion, equipment, and load rules. Do not mix variations, assistance, partial range, momentum, or different load conventions.

Use a conventional barbell deadlift from the floor

Start every rep with the bar motionless on the floor and finish standing with the hips and knees straight. Do not bounce the bar, use touch-and-go reps, hitch it up the thighs, or enter a rack pull, block pull, trap-bar deadlift, Romanian deadlift, machine variation, or equipped result.

Use the Smith Machine Stiff Leg Deadlift setup and load convention

The total Smith machine bar weight used for the stiff-leg deadlift set. Valid Smith Machine Stiff Leg Deadlift reps. Hinge with minimal knee bend from the approved low start to standing without Romanian-deadlift drift, conventional-deadlift drift, bounce, or partial range. Consistent setup, range, and finish quality across the entered set. No substituted exercise or assisted reps.

Enter one recent Barbell Deadlift result and one recent Smith Machine Stiff Leg Deadlift result

First lift: total barbell weight and 1–12 strict reps. Second lift: weight used and 1–12 strict reps. Pounds or kilograms.

  • Barbell Deadlift — View the individual Barbell Deadlift standards and next strength-level target.
  • Smith Machine Stiff Leg Deadlift — View the individual Smith Machine Stiff Leg Deadlift standards and next strength-level target.
  • Barbell Stiff-Leg Deadlift — Use this related standards tool to examine a closely related exercise without mixing its result into this comparison.
  • Romanian Deadlift — Use this related standards tool to examine a closely related exercise without mixing its result into this comparison.
  • Smith Machine Romanian Deadlift — Use this related standards tool to examine a closely related exercise without mixing its result into this comparison.
  • Cable Romanian Deadlift — Use this related standards tool to examine a closely related exercise without mixing its result into this comparison.
Use Calculator