RDL One Rep Max Calculator
Calculate your Romanian Deadlift 1RM using 4 proven formulas
| Level | Men (x BW) | Women (x BW) | Description |
|---|---|---|---|
| Beginner | < 0.75× | < 0.50× | Learning the movement pattern |
| Novice | 0.75–1.0× | 0.50–0.75× | Consistent form, building base |
| Intermediate | 1.0–1.25× | 0.75–1.0× | Solid technique, good progress |
| Advanced | 1.25–1.6× | 1.0–1.35× | Strong athlete, competitive range |
| Elite | > 1.6× | > 1.35× | Top-level performance |
| % of 1RM | Rep Range | Training Focus | Intensity |
|---|---|---|---|
| 50% | 12–20 reps | Warm-up / Endurance | Very Light |
| 60% | 10–15 reps | Hypertrophy Volume | Light |
| 70% | 8–12 reps | Muscle Building | Moderate |
| 75% | 6–10 reps | Strength-Hypertrophy | Moderate-Heavy |
| 80% | 4–8 reps | Strength Building | Heavy |
| 85% | 3–5 reps | Max Strength | Very Heavy |
| 90% | 2–3 reps | Training Max Work | Near Maximal |
| 95% | 1–2 reps | Peak Strength | Maximal |
| 100% | 1 rep | 1RM Test | Maximum Effort |
| Metric | RDL | Conventional DL | Ratio |
|---|---|---|---|
| Primary Focus | Hamstrings / Glutes | Full Posterior Chain | — |
| Typical 1RM Ratio | 60–70% of DL | 100% baseline | 0.65× |
| Range of Motion | Hip hinge only | Floor to lockout | Shorter |
| Lower Back Load | Moderate | High | Less stress |
Romanian deadlift, or RDL, is an exercise with resistance that strengthens the back chain of muscles and works for all levels of training. The short form RDL stands for Romanian deadlift and it mainly works the back muscles of the thigh, the glutes and the hips. That name is actually wrong.
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In the regular deadlift, every repetition starts with the weight on the ground, from the dead position, which is different from the way one does the Romanian deadlift.
How to Train the Romanian Deadlift
Reaching a One Rep Max is not the main goal for the Romanian deadlift. It does not belong to the kind of lifts for big maxes. Instead, more repetitions with less weight work best.
One should focus on the feeling in the glutes and back thigh muscles, with good form throuhg the move.
One Rep Max is the biggest weight that one can lift in any exercise for exactly one repetition. It requires full physical and mental energy to finish. Usually, one counts One Rep Max to measure overall strength, which shows how much weight one can lift once.
Calculators for One Rep Max allow you to enter the lifted weight and done repetitions, then they estimate what would bee possible for one single repetition. The entered repetitions should fall between one and ten. Formulas like those of Epley and Brzycki help in all ratings for some calculators.
Still, those formulas do not work well for more than ten repetitions.
Because of that, for the Romanian deadlift around 60 percent of the One Rep Max works well, especially for athletes that want to reach repetitions of 10 to 12. Forty percent or even 30 of the max for the regular deadlift is a good start for beginners in that exercise. Most people can practice the Romanian deadlift with 65 to 75 percent of their max for the deadlift during 5 to 10 repetitions.
The Romanian deadlift usually happens with lighter load and more repetitions than in the regular deadlift. To start, 12 repetitions each set is a good idea. For growth, 8 to 12 repetitions each set with 3 working sets works.
If one wants maximum strength and power, then 4 to 8 repetitions each set with 3 to 4 sets form a solid choice. One commonly plans the Romanian deadlift with many repetitions to build volume and boost growth of the muscles. When the focus is on building glutes and back thigh muscles, one lowers the wait and picks the feeling during performance of the Romanian deadlift.
Testing for One Rep Max is not required. One can measure strength with the max number of repetitions with lighter loads. When one adds more weight or repetitions weekly or every two weeks, that shows that the strength grows anyway.
Tables about strength standards help to compare the results of the Romanian deadlift with those of other lifters in similar body weight. Really, the Romanian deadlift is a helpful lift, so the numbers can vary a lot based on individual strengths andweaknesses in the deadlift.
