Leg Press (45° Sled) vs Smith Machine Box Squat Strength Standards

Leg Press vs Smith Machine Box Squat Strength Standards

These bodyweight tables place the 45-degree leg press and smith machine box squat 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 Leg Press / Smith Machine Box Squat, pounds first and kilograms second. Enter your own sets above for exact ratings without testing a true one-rep max.

Men’s Leg Press vs Smith Machine 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 Smith Machine 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 Smith Machine Box Squat Result Is Calculated

Each set is converted to an estimated max before the calculator assigns exercise-specific strength levels and compares them.

1. Estimate a one-rep max from each set

When the set contains one rep, the entered load is the estimate. For 2–12 reps, the calculator keeps the less aggressive of the two formula results.

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

Set quality matters for this Leg Press vs Smith Machine Box Squat 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 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.

The target rises more slowly than bodyweight so heavier lifters are expected to press more sled load without requiring strength to increase pound for pound.

3. Find the smith machine box squat strength level

For smith machine 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.

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

4. Compare the two results

The lift with the lower Beginner-to-Elite rating is the priority. If both ratings match, the calculator requires a 10-point difference in next-level progress before naming a priority; otherwise it reports Balanced.

The result identifies the lower standards rating, not its cause. Technique, fatigue, training history, and set quality can all affect the comparison. Age range is recorded anonymously but does not change these standards.

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 Leg Press and Smith Machine Box Squat Standards Differ

How to read this chart: Choose a strength level and follow its line across bodyweight. Values show the Smith Machine Box Squat standard minus the Leg Press standard: zero means equal, above zero means the Smith Machine 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 Smith Machine Box Squat Standards Differ

How to read this chart: Choose a strength level and follow its line across bodyweight. Values show the Smith Machine Box Squat standard minus the Leg Press standard: zero means equal, above zero means the Smith Machine 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 Smith Machine Box Squat Exercises Used by This Calculator

For a useful comparison, perform a strict 45-degree leg press and a strict smith machine box squat using the setup and load rules below. Use strict, repeatable Leg Press and Smith Machine 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 Smith Machine Box Squat setup and load convention

Use Smith rails vertical within 1 degree and a non-counterbalanced bar. Measure actual unloaded resistance with a calibrated force scale and enter it plus every plate on both sleeves. Center a rigid flat box behind the lifter. Record lifting-platform-to-box-top height in centimeters and use the same value. Set it so simultaneous full-glute contact places both hip creases 2 cm plus or minus 1 cm below the top of the knees. Set heel centers at measured hip-joint width; outward toe angle is permitted. Position feet so the bar remains over midfoot at box contact. Sit back under control to full-glute contact; pause visibly for one second while maintaining braced trunk, foot pressure, and muscular tension. Do not rock, relax, bounce, or shift. Stand to simultaneous hip/knee lockout without rehooking or stop contact. Count 1–10 controlled reps with identical box height/position and stance. Belt/sleeves/chalk/shoes allowed; rebound wraps, suits, assistance, and partials prohibited.

Enter one recent Leg Press result and one recent Smith Machine 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.
• Smith Machine Box Squat — View the individual Smith Machine Box Squat standards and next strength-level target.
• Barbell 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.
• Safety Bar Squat — Use this related standards tool to examine a closely related exercise without mixing its result into this comparison.
• Barbell Sumo Squat — Use this related standards tool to examine a closely related exercise without mixing its result into this comparison.