Leg Press (45° Sled) vs Safety Bar Box Squat Strength Standards

Leg Press vs Safety Bar Box Squat Strength Standards

The paired standards below show what the 45-degree leg press and safety bar box squat each require at the same strength level. They are separate exercise targets rather than a prescribed difference between your lifts.

Select the appropriate sex table and nearest bodyweight, then choose a strength-level column. Values are ordered Leg Press / Safety Bar Box Squat in pounds with kilograms underneath. The calculator above handles exact bodyweight and set inputs.

Men’s Leg Press vs Safety Bar Box Squat 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 Leg Press vs Safety Bar Box Squat 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.

How Your Leg Press vs Safety Bar Box Squat Result Is Calculated

The comparison starts by estimating each max separately. It then rates both lifts against their own standards before identifying the lower result.

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)

For the most useful Leg Press vs Safety Bar Box Squat 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 45-degree leg press strength level

The leg press standards use the sex-specific standards from the individual Leg Press tool. 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.

Two-thirds scaling raises the target as bodyweight rises while limiting the size advantage that a direct one-to-one adjustment would create.

3. Find the safety bar box squat strength level

For safety bar box squat, 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.

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

How Men’s Leg Press and Safety Bar Box Squat Standards Differ

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

How Women’s Leg Press and Safety Bar Box Squat Standards Differ

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

Leg Press and Safety Bar Box Squat Exercises Used by This Calculator

Valid results depend on using the specified 45-degree leg press and safety bar box squat technique and load convention. Use strict, repeatable Leg Press and Safety Bar Box Squat 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 45-degree plate-loaded sled leg press

Keep both feet flat and approximately shoulder-width, descend until the thighs reach at least parallel to the platform without lifting the hips or rounding the lower back, and press to controlled full knee extension. Do not enter a horizontal, vertical, selectorized, single-leg, high-foot, partial, bounced, or assisted press.

Use the Safety Bar Box Squat setup and load convention

The total loaded safety squat bar weight, including the actual bar weight and all plates, squatted to the valid-height box. Controlled safety-bar box-squat reps. Squat the loaded safety bar to a stable valid-height box, make controlled box contact without relaxing or rocking, and stand to full hip and knee extension without Hatfield-style hand help. Consistent setup, range, and finish quality across the entered set. No substituted exercise or assisted reps.

Enter one recent Leg Press result and one recent Safety Bar Box Squat result

First lift: total plates loaded on the 45-degree sled and 1–12 strict reps. Second lift: weight used and 1–12 strict reps. Pounds or kilograms.

Related Tools

• Leg Press (45° Sled) — View the individual Leg Press standards and next strength-level target.
• Safety Bar Box Squat — View the individual Safety Bar Box Squat standards and next strength-level target.
• Safety Bar Squat — Use this related standards tool to examine a closely related exercise without mixing its result into this comparison.
• Barbell Box Squats — Use this related standards tool to examine a closely related exercise without mixing its result into this comparison.
• Paused Front Squat — Use this related standards tool to examine a closely related exercise without mixing its result into this comparison.
• Machine Hack Squat — Use this related standards tool to examine a closely related exercise without mixing its result into this comparison.