Leg Press (45° Sled) vs Double Kettlebell Stiff-Leg Deadlift Strength Standards

Leg Press vs Double Kettlebell Stiff-Leg Deadlift Strength Standards

Use these tables to compare the estimated one-rep max required for the 45-degree leg press and double kettlebell stiff-leg deadlift 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 / Double Kettlebell Stiff-Leg Deadlift, with pounds above kilograms. Use the calculator for your exact bodyweight and recent sets.

Men’s Leg Press vs Double Kettlebell 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 Leg Press vs Double Kettlebell 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.

How Your Leg Press vs Double Kettlebell Stiff-Leg Deadlift 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 Double Kettlebell 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 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 double kettlebell stiff-leg deadlift strength level

The standards use the sex-specific thresholds from the individual Double Kettlebell Stiff-Leg Deadlift 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 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.

Use the calculator above to view both estimated maxes, strength levels, next targets, and the resulting priority or Balanced verdict.

How Men’s Leg Press and Double Kettlebell Stiff-Leg Deadlift Standards Differ

How to read this chart: Choose a strength level and follow its line across bodyweight. Values show the Double Kettlebell Stiff-Leg Deadlift standard minus the Leg Press standard: zero means equal, above zero means the Double Kettlebell Stiff-Leg Deadlift 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 Double Kettlebell Stiff-Leg Deadlift Standards Differ

How to read this chart: Choose a strength level and follow its line across bodyweight. Values show the Double Kettlebell Stiff-Leg Deadlift standard minus the Leg Press standard: zero means equal, above zero means the Double Kettlebell Stiff-Leg Deadlift 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 Double Kettlebell Stiff-Leg Deadlift Exercises Used by This Calculator

For a useful comparison, perform a strict 45-degree leg press and a strict double kettlebell stiff-leg deadlift using the setup and load rules below. Use strict, repeatable Leg Press and Double Kettlebell 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 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 Double Kettlebell Stiff-Leg Deadlift setup and load convention

Use two equal kettlebells. Enter one kettlebell’s verified mass; display per-kettlebell and combined weight; calculate e1RM and standards from the combined pair. Place one bell outside each foot with both bells motionless on the floor. Use a fixed, repeatable stance and grip, arms long, shoulders packed, trunk braced, and spine neutral. Set both knees at 10 degrees flexion with a tolerance of plus or minus 5 degrees. Keep knee angle materially unchanged while hinging and standing; do not add conventional/sumo knee drive or turn the pull into a squat. Lift both bells simultaneously to motionless full hip and knee extension with arms long and shoulders controlled. No hitch, thigh support, staggered finish, or backward lean. Lower both bells under control along the outside of the legs and let both settle on the floor before each of 1–8 counted reps. The same stance, bell geometry, knee angle, range, and strictness apply throughout. Chalk, belt, wrist wraps, and stable shoes are allowed. Straps/hooks, supportive suits, assistance, unequal bells, and asynchronous reps are prohibited.

Enter one recent Leg Press result and one recent Double Kettlebell Stiff-Leg Deadlift 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.
• Double Kettlebell Stiff-Leg Deadlift — View the individual Double Kettlebell Stiff-Leg Deadlift standards and next strength-level target.
• Barbell 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.
• Trap Bar Deadlift — Use this related standards tool to examine a closely related exercise without mixing its result into this comparison.
• Trap Bar High Handle Deadlift — Use this related standards tool to examine a closely related exercise without mixing its result into this comparison.