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Romanian Deadlift Calculator

Estimate your Romanian Deadlift 1 rep max (1RM) from any weight and reps, and see how your RDL strength ranks relative to bodyweight and sex. Supports kg and lbs.

Romanian Deadlift 1RM

Compare to RDL strength standards

Unit System
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Estimated 1RM

The Romanian deadlift (RDL) is a hip-hinge movement that targets the hamstrings, glutes, and erector spinae. Unlike the conventional deadlift, the RDL starts from the standing position and stops before the plates reach the floor, maximising time under tension on the posterior chain. Your estimated 1RM is calculated as the average of the Epley, Brzycki, and Lombardi formulas.

RDL Strength Standards by Bodyweight

LevelMale (1RM / BW)Female (1RM / BW)Notes
Beginner0.8×0.5×< 6 months training
Novice1.0×0.7×6–18 months
Intermediate1.35×0.95×1–3 years
Advanced1.7×1.2×3–5+ years
Elite2.1×1.6×Competitive powerlifting

Why the Romanian Deadlift is Essential for Posterior Chain Development

The Romanian deadlift is arguably the single best exercise for hamstring hypertrophy. Unlike leg curls (which train the hamstrings at short muscle length) and conventional deadlifts (which emphasise the glutes and back), the RDL loads the hamstrings under a significant stretch — the position of greatest mechanotransduction and muscle damage that drives hypertrophy. EMG studies consistently show high hamstring activation during RDLs, particularly the biceps femoris. For athletes, the RDL also trains the hip hinge pattern critical for sprinting, jumping, and Olympic lifting. It should be a cornerstone of any well-programmed lower body routine, typically performed for 3–4 sets of 6–12 reps at 70–80% of 1RM after primary compound movements.

Frequently Asked Questions

Males: Beginner ≈ 0.8× BW, Intermediate ≈ 1.35× BW, Advanced ≈ 1.7× BW, Elite ≈ 2.1× BW. RDL is typically 70–80% of conventional deadlift 1RM due to reduced mechanical advantage (no pull from the floor). A 80 kg male with a 1.7× BW RDL (136 kg) is advanced — around the top 20% of trained lifters.
The RDL starts standing and involves a hip hinge lowering to mid-shin with soft knees — the weight never touches the floor between reps. The conventional deadlift starts from the floor with a more upright torso. RDL: greater hamstring stretch and time under tension, less glute and quad. Conventional DL: more hip extension power, glute dominance, and floor-to-lockout strength. Both are complementary.
Lower until you feel a strong stretch in the hamstrings — typically mid-shin level for most people. More flexible lifters can go to the floor or touch-and-go off the floor (making it a dead start RDL). Stop when the lower back begins to round: lumbar flexion under load risks disc injury and defeats the purpose of the hip hinge. The range of motion should be limited by hamstring flexibility, not the floor.
For hamstring hypertrophy: 3–4 sets of 8–12 reps at 65–75% 1RM. For posterior chain strength: 4–5 sets of 4–6 reps at 80–85% 1RM. RDLs are rarely programmed as a true 1RM exercise due to technique complexity. They work best as a secondary movement after squats or conventional deadlifts. 2× per week is a common frequency for hamstring development.

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Deadlift CalculatorConventional deadlift 1RM and strength standards.Calculate → One Rep Max Calculator1RM estimator for any lift.Calculate → Progressive Overload CalculatorPlan week-by-week load progression.Calculate → Strength Level CalculatorCompare your lifts to world standards.Calculate →