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Barbell Side Lunge vs Smith Machine Stiff Leg Deadlift

Compare your barbell side lunge and smith machine stiff leg deadlift against strength standards for your sex and bodyweight. Enter one recent set of 1–12 reps for each lift to see estimated one-rep maxes, strength levels, next targets, and priority.

First lift: weight used and 1–12 strict reps. Second lift: weight used and 1–12 strict reps. Pounds or kilograms. For the first exercise, reps are performed evenly on both sides; weaker side determines valid load and rep count. 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 Side Lunge vs Smith Machine Stiff Leg Deadlift Strength Standards

These bodyweight tables place the barbell side lunge 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 Side Lunge / 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 Side Lunge 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 Side Lunge vs Smith Machine Stiff Leg Deadlift standards
BodyweightExerciseNoviceIntermediateAdvancedElite
120 lb54.4 kgBarbell Side Lunge36 lb16.3 kg53 lb24 kg76 lb34.5 kg104 lb47.2 kg
Smith Machine Stiff Leg Deadlift81 lb36.7 kg115 lb52.2 kg154 lb69.9 kg196 lb88.9 kg
130 lb59 kgBarbell Side Lunge38 lb17.2 kg56 lb25.4 kg80 lb36.3 kg109 lb49.4 kg
Smith Machine Stiff Leg Deadlift85 lb38.6 kg121 lb54.9 kg162 lb73.5 kg207 lb93.9 kg
140 lb63.5 kgBarbell Side Lunge40 lb18.1 kg59 lb26.8 kg84 lb38.1 kg115 lb52.2 kg
Smith Machine Stiff Leg Deadlift90 lb40.8 kg127 lb57.6 kg171 lb77.6 kg217 lb98.4 kg
150 lb68 kgBarbell Side Lunge42 lb19.1 kg62 lb28.1 kg88 lb39.9 kg120 lb54.4 kg
Smith Machine Stiff Leg Deadlift94 lb42.6 kg133 lb60.3 kg179 lb81.2 kg227 lb103 kg
160 lb72.6 kgBarbell Side Lunge44 lb20 kg64 lb29 kg92 lb41.7 kg126 lb57.2 kg
Smith Machine Stiff Leg Deadlift98 lb44.5 kg139 lb63 kg186 lb84.4 kg237 lb107.5 kg
170 lb77.1 kgBarbell Side Lunge45 lb20.4 kg67 lb30.4 kg96 lb43.5 kg131 lb59.4 kg
Smith Machine Stiff Leg Deadlift102 lb46.3 kg145 lb65.8 kg194 lb88 kg247 lb112 kg
180 lb81.6 kgBarbell Side Lunge47 lb21.3 kg69 lb31.3 kg99 lb44.9 kg136 lb61.7 kg
Smith Machine Stiff Leg Deadlift106 lb48.1 kg150 lb68 kg202 lb91.6 kg257 lb116.6 kg
190 lb86.2 kgBarbell Side Lunge49 lb22.2 kg72 lb32.7 kg103 lb46.7 kg141 lb64 kg
Smith Machine Stiff Leg Deadlift110 lb49.9 kg156 lb70.8 kg209 lb94.8 kg266 lb120.7 kg
200 lb90.7 kgBarbell Side Lunge51 lb23.1 kg75 lb34 kg107 lb48.5 kg146 lb66.2 kg
Smith Machine Stiff Leg Deadlift114 lb51.7 kg161 lb73 kg216 lb98 kg275 lb124.7 kg
210 lb95.3 kgBarbell Side Lunge52 lb23.6 kg77 lb34.9 kg110 lb49.9 kg151 lb68.5 kg
Smith Machine Stiff Leg Deadlift118 lb53.5 kg167 lb75.7 kg223 lb101.2 kg284 lb128.8 kg
220 lb99.8 kgBarbell Side Lunge54 lb24.5 kg79 lb35.8 kg114 lb51.7 kg155 lb70.3 kg
Smith Machine Stiff Leg Deadlift121 lb54.9 kg172 lb78 kg230 lb104.3 kg293 lb132.9 kg
230 lb104.3 kgBarbell Side Lunge56 lb25.4 kg82 lb37.2 kg117 lb53.1 kg160 lb72.6 kg
Smith Machine Stiff Leg Deadlift125 lb56.7 kg177 lb80.3 kg237 lb107.5 kg302 lb137 kg
240 lb108.9 kgBarbell Side Lunge57 lb25.9 kg84 lb38.1 kg120 lb54.4 kg165 lb74.8 kg
Smith Machine Stiff Leg Deadlift129 lb58.5 kg182 lb82.6 kg244 lb110.7 kg311 lb141.1 kg
250 lb113.4 kgBarbell Side Lunge59 lb26.8 kg86 lb39 kg124 lb56.2 kg169 lb76.7 kg
Smith Machine Stiff Leg Deadlift132 lb59.9 kg187 lb84.8 kg251 lb113.9 kg319 lb144.7 kg
260 lb117.9 kgBarbell Side Lunge60 lb27.2 kg89 lb40.4 kg127 lb57.6 kg174 lb78.9 kg
Smith Machine Stiff Leg Deadlift136 lb61.7 kg192 lb87.1 kg258 lb117 kg328 lb148.8 kg
270 lb122.5 kgBarbell Side Lunge62 lb28.1 kg91 lb41.3 kg130 lb59 kg178 lb80.7 kg
Smith Machine Stiff Leg Deadlift139 lb63 kg197 lb89.4 kg264 lb119.7 kg336 lb152.4 kg
280 lb127 kgBarbell Side Lunge63 lb28.6 kg93 lb42.2 kg133 lb60.3 kg183 lb83 kg
Smith Machine Stiff Leg Deadlift142 lb64.4 kg202 lb91.6 kg271 lb122.9 kg344 lb156 kg
290 lb131.5 kgBarbell Side Lunge65 lb29.5 kg95 lb43.1 kg137 lb62.1 kg187 lb84.8 kg
Smith Machine Stiff Leg Deadlift146 lb66.2 kg207 lb93.9 kg277 lb125.6 kg353 lb160.1 kg
300 lb136.1 kgBarbell Side Lunge66 lb29.9 kg98 lb44.5 kg140 lb63.5 kg191 lb86.6 kg
Smith Machine Stiff Leg Deadlift149 lb67.6 kg212 lb96.2 kg283 lb128.4 kg361 lb163.7 kg

Women’s Barbell Side Lunge 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 Side Lunge vs Smith Machine Stiff Leg Deadlift standards
BodyweightExerciseNoviceIntermediateAdvancedElite
100 lb45.4 kgBarbell Side Lunge22 lb10 kg34 lb15.4 kg48 lb21.8 kg66 lb29.9 kg
Smith Machine Stiff Leg Deadlift43 lb19.5 kg64 lb29 kg89 lb40.4 kg117 lb53.1 kg
110 lb49.9 kgBarbell Side Lunge24 lb10.9 kg36 lb16.3 kg51 lb23.1 kg71 lb32.2 kg
Smith Machine Stiff Leg Deadlift46 lb20.9 kg68 lb30.8 kg95 lb43.1 kg124 lb56.2 kg
120 lb54.4 kgBarbell Side Lunge25 lb11.3 kg38 lb17.2 kg54 lb24.5 kg75 lb34 kg
Smith Machine Stiff Leg Deadlift49 lb22.2 kg72 lb32.7 kg101 lb45.8 kg132 lb59.9 kg
130 lb59 kgBarbell Side Lunge26 lb11.8 kg40 lb18.1 kg57 lb25.9 kg79 lb35.8 kg
Smith Machine Stiff Leg Deadlift52 lb23.6 kg76 lb34.5 kg106 lb48.1 kg139 lb63 kg
140 lb63.5 kgBarbell Side Lunge28 lb12.7 kg42 lb19.1 kg60 lb27.2 kg83 lb37.6 kg
Smith Machine Stiff Leg Deadlift54 lb24.5 kg80 lb36.3 kg112 lb50.8 kg146 lb66.2 kg
150 lb68 kgBarbell Side Lunge29 lb13.2 kg44 lb20 kg63 lb28.6 kg87 lb39.5 kg
Smith Machine Stiff Leg Deadlift57 lb25.9 kg84 lb38.1 kg117 lb53.1 kg153 lb69.4 kg
160 lb72.6 kgBarbell Side Lunge30 lb13.6 kg46 lb20.9 kg66 lb29.9 kg91 lb41.3 kg
Smith Machine Stiff Leg Deadlift60 lb27.2 kg88 lb39.9 kg122 lb55.3 kg160 lb72.6 kg
170 lb77.1 kgBarbell Side Lunge32 lb14.5 kg48 lb21.8 kg68 lb30.8 kg95 lb43.1 kg
Smith Machine Stiff Leg Deadlift62 lb28.1 kg91 lb41.3 kg127 lb57.6 kg166 lb75.3 kg
180 lb81.6 kgBarbell Side Lunge33 lb15 kg50 lb22.7 kg71 lb32.2 kg98 lb44.5 kg
Smith Machine Stiff Leg Deadlift64 lb29 kg95 lb43.1 kg132 lb59.9 kg173 lb78.5 kg
190 lb86.2 kgBarbell Side Lunge34 lb15.4 kg52 lb23.6 kg74 lb33.6 kg102 lb46.3 kg
Smith Machine Stiff Leg Deadlift67 lb30.4 kg98 lb44.5 kg137 lb62.1 kg179 lb81.2 kg
200 lb90.7 kgBarbell Side Lunge35 lb15.9 kg53 lb24 kg76 lb34.5 kg105 lb47.6 kg
Smith Machine Stiff Leg Deadlift69 lb31.3 kg102 lb46.3 kg142 lb64.4 kg185 lb83.9 kg
210 lb95.3 kgBarbell Side Lunge36 lb16.3 kg55 lb24.9 kg79 lb35.8 kg109 lb49.4 kg
Smith Machine Stiff Leg Deadlift71 lb32.2 kg105 lb47.6 kg146 lb66.2 kg191 lb86.6 kg
220 lb99.8 kgBarbell Side Lunge37 lb16.8 kg57 lb25.9 kg81 lb36.7 kg112 lb50.8 kg
Smith Machine Stiff Leg Deadlift74 lb33.6 kg108 lb49 kg151 lb68.5 kg198 lb89.8 kg
230 lb104.3 kgBarbell Side Lunge39 lb17.7 kg59 lb26.8 kg84 lb38.1 kg116 lb52.6 kg
Smith Machine Stiff Leg Deadlift76 lb34.5 kg112 lb50.8 kg156 lb70.8 kg203 lb92.1 kg
240 lb108.9 kgBarbell Side Lunge40 lb18.1 kg60 lb27.2 kg86 lb39 kg119 lb54 kg
Smith Machine Stiff Leg Deadlift78 lb35.4 kg115 lb52.2 kg160 lb72.6 kg209 lb94.8 kg

How Your Barbell Side Lunge 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

The entered weight is used directly for one rep. With 2–12 reps, both estimates are compared and the lower value is used.

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

For the most useful Barbell Side Lunge vs Smith Machine Stiff Leg Deadlift comparison, enter clean, difficult sets performed with the same technique and range of motion you use in training. Lower-rep sets usually require less extrapolation.

2. Find the barbell side lunge strength level

The barbell side lunge rating uses its sex-specific exercise standards. Reference targets at 190 lb for men and 150 lb for women are scaled to the entered bodyweight by 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.

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

Each max receives a level from Beginner through Elite. The lower-level lift becomes the priority. At matching levels, a priority appears only when one lift is at least 10 points farther from its next level; otherwise the result is Balanced.

A priority result is a standards comparison, not a diagnosis. Differences in technique, fatigue, practice, or set effort may influence it. Age range is recorded anonymously and does not alter 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 side lungeUse the exercise-specific estimated max and adjust targets to exact bodyweight with the two-thirds scaling 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.

The calculator above applies these steps to your exact entries and reports both lift ratings, both next targets, and the final comparison.

How Men’s Barbell Side Lunge 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.

Smith Machine Stiff Leg Deadlift target is higher4 strength levels

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

Elite difference92 → 170 lb

At Elite, the difference is 41.7 kg at 120 lb and 77.1 kg at 300 lb.

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 Side Lunge standard: zero means equal, above zero means the Smith Machine Stiff Leg Deadlift standard is higher, and below zero means the Barbell Side Lunge 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 Side Lunge 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.

Smith Machine Stiff Leg Deadlift target is higher4 strength levels

The higher target remains with Smith Machine Stiff Leg Deadlift for Novice, Intermediate, Advanced, and Elite throughout the table.

Elite difference51 → 90 lb

At Elite, the difference is 23.2 kg at 100 lb and 40.8 kg at 240 lb.

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 Side Lunge standard: zero means equal, above zero means the Smith Machine Stiff Leg Deadlift standard is higher, and below zero means the Barbell Side Lunge 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 Side Lunge and Smith Machine Stiff Leg Deadlift Exercises Used by This Calculator

The calculator expects repeatable barbell side lunge and smith machine stiff leg deadlift results. Follow each exercise definition below so the two ratings are based on valid tests. Use strict, repeatable Barbell Side Lunge 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 the exercise-specific Barbell Side Lunge setup and load convention

Barbell is positioned on the upper back; high-bar or low-bar placement is allowed. Lifter begins standing upright with feet hip-width apart. Lifter steps laterally into a wide stance. Working foot remains flat and planted throughout the rep. Lifter descends by sitting into the working hip. Non-working leg remains extended with minimal knee bend. Working thigh reaches at least parallel, with hip crease at or below knee level. Each repetition counts only after returning to a fully upright standing position with hips and knees extended and feet returned under the body. Torso remains neutral with minimal forward collapse or rotation. Each rep is controlled with consistent depth, step width, and tempo. Reps are performed evenly on both sides; weaker side determines valid load and rep count. Raw lifting only; no equipped or assisted support is included. No shallow side steps without clear depth, forward or rotational lunge substitutions, excessive torso lean, momentum-assisted returns, assisted variations, machine-based lateral lunges, Smith machine variations, partial reps, uneven step widths, or equipped lifting are included. Load input represents total barbell weight only, not bodyweight. Standards reflect unilateral lower-body strength with significant lateral stability demands. Side lunges typically allow less loading than forward or reverse lunges due to reduced mechanical efficiency. Most lifters are limited by hip mobility, adductor strength, and lateral balance. Shallow depth or shortened step width will inflate results. Strict, repeatable execution is required for valid comparisons. Estimated 1RM is calculated from the entered weight used and reps.

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 Side Lunge result and one recent Smith Machine Stiff Leg Deadlift result

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

  • Barbell Side Lunge — View the individual Barbell Side Lunge 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 Cossack Squat — Use this related standards tool to examine a closely related exercise without mixing its result into this comparison.
  • Barbell Lunge — Use this related standards tool to examine a closely related exercise without mixing its result into this comparison.
  • 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.
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