Leg Press (45° Sled) vs Box Squat With Chains Strength Standards

Leg Press vs Box Squat with Chains Strength Standards

Use these tables to compare the estimated one-rep max required for the 45-degree leg press and box squat with chains to reach the same strength level at each listed bodyweight. The numbers are calculator targets, not a required gap between the two lifts.

Choose the men’s or women’s table, find the closest bodyweight row, and read across to Novice, Intermediate, Advanced, or Elite. Each entry shows Leg Press / Box Squat with Chains, with pounds above kilograms. Use the calculator for your exact bodyweight and recent sets.

Men’s Leg Press vs Box Squat with Chains 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 Box Squat with Chains 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 Box Squat with Chains Result Is Calculated

Both lifts are scored independently first: estimated max, bodyweight-adjusted strength level, and progress toward the next level. Those ratings drive the comparison.

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)

For the most useful Leg Press vs Box Squat with Chains 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 45-degree leg press 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 heavier lifters are expected to press more sled load without requiring strength to increase pound for pound.

3. Find the box squat with chains strength level

The box squat with chains 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.

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

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.

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.

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 Box Squat with Chains Standards Differ

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

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

Valid results depend on using the specified 45-degree leg press and box squat with chains technique and load convention. Use strict, repeatable Leg Press and Box Squat with Chains 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 Box Squat with Chains setup and load convention

The entered weight for strict Box Squat with Chains. Valid Box Squat with Chains reps. The movement must follow the defined Box Squat with Chains path: barbell is squatted to a valid-height box and stood back up while chains add weight as they lift from the floor and finish with A valid finish requires the defined end position for Box Squat with Chains, visible control of the weight, and no assistance or substituted exercise style. 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 Box Squat with Chains 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.
• Box Squat with Chains — View the individual Box Squat with Chains standards and next strength-level target.
• Barbell Box Squats — Use this related standards tool to examine a closely related exercise without mixing its result into this comparison.
• Safety Bar Box Squat — Use this related standards tool to examine a closely related exercise without mixing its result into this comparison.
• Smith Machine Back Squat — Use this related standards tool to examine a closely related exercise without mixing its result into this comparison.
• Barbell Pin Squat — Use this related standards tool to examine a closely related exercise without mixing its result into this comparison.