Conventional vs Romanian Deadlift: Which One You Actually Need

The conventional deadlift and the Romanian deadlift look like the same lift from across the gym, but they do two fairly different jobs. One is picking weight off the floor with hips and knees pushing together; the other is loading the hamstrings under a long, controlled stretch. Once you know what each one gives you, you stop picking by feel and start picking by what's missing.

What actually separates them

The conventional deadlift starts on the floor. The bar sits over mid-foot, knees are bent 60–75 degrees at the start, the torso is roughly 30–45 degrees from horizontal, and the movement begins concentrically — from a dead stop, with no stretch to help you. That makes it a strength test: you can reasonably work at 75–90% of your one-rep max.

The Romanian deadlift starts from the top. You take the bar out of a rack at hip height (or deadlift it up once), bend the knees 10–20 degrees and lock them there, then push the hips back 25–35 cm while the bar slides down your thighs. You descend until you feel a hard hamstring stretch and until your lower back starts to round — for most people that's somewhere between just below the knee and mid-shin. The bar never rests on the floor between reps.

Which muscles work

• Conventional: hamstrings, glutes and spinal erectors, plus real quad involvement in the first 10–15 cm off the floor, and heavy demand on the lats and grip.
• Romanian: hamstrings and glutes carry 70–80% of the work. The quads are nearly out of the picture because the knee angle doesn't change; the upper back works isometrically to keep the bar close.
• Both: tax your grip hard. If your hands fail before your legs, treat that as its own problem rather than a reason to train the legs lighter.

Conventional: five steps

1. Feet hip-width, bar over mid-foot and almost touching your shins.
2. Grip just outside your legs, drop the hips until your shoulders sit slightly in front of the bar.
3. Breathe into your stomach, brace like you're about to take a punch, and pull the slack out of the bar before it moves.
4. Push the floor away and drag the bar up your shins. Hips and shoulders rise at the same time.
5. Lock out without leaning back, then lower under control for 1–2 seconds or set the bar down and reset.

Romanian: five steps

1. Bar against the thighs, knees softly bent — and they stay that way for the whole set.
2. Push the hips back rather than sinking straight down. Chest travels forward, weight stays on the heels and mid-foot.
3. Take 2–3 seconds on the way down, keeping the bar in contact with your legs. More than 3–5 cm of daylight between bar and thigh means you've lost position.
4. Stop when the stretch gets sharp, usually 5–15 cm below the knee. Deeper isn't better if you pay for it with a rounded back.
5. Drive the hips forward and squeeze the glutes at the top — no leaning back past vertical.

Sets, reps and load

You don't need a thousand variations, you need two done well. Concrete numbers:

• Conventional: 3–5 sets of 3–6 reps at 75–85% of max, 3–4 minutes rest. Beginners: 3 sets of 5 with a weight you could lift about 8 times.
• Romanian: 3–4 sets of 6–10 reps, typically 50–65% of your conventional deadlift, 90–120 seconds rest.
• Progression: add 2.5 kg per week on the Romanian and 5 kg on the conventional as long as technique and bar speed hold. When you stall two weeks running, cut 10% and build back up.
• Recovery: leave 48–72 hours between hard hamstring sessions, and count on 1.6–2.2 g of protein per kg of bodyweight per day.

Rule of thumb: if your back rounds before you reach the depth you wanted, either the load is too heavy or the range is beyond your current mobility.

Common mistakes

• The Romanian turns into a squat — knees bend more and more, and it stops being a hip movement.
• Letting the bar drift forward. Every centimetre away from your body multiplies the load on your lower back.
• Bouncing the bar off the floor on conventional reps instead of stopping fully and resetting.
• Hyperextending at lockout. It adds nothing to the muscle and compresses the spine.
• Training hamstrings to failure every session. Leave 2–3 reps in reserve on Romanians; four days of soreness wrecks the rest of your week.

Fitting both into a week

The simplest layout across two lower-body days:

• Day A: conventional deadlift 4×4, then leg press or lunges 3×10.
• Day B, 72 hours later: Romanian deadlift 4×8, then leg curls 3×12 and hip thrusts 3×12.

If you only train twice a week full body, pick one per day and never both in the same session. Training for strength? Conventional gets priority. Weak hamstrings, frequent cramping, or wanting more size back there? Romanian gets priority.

When to see a doctor

• Pain that travels down the leg below the knee, numbness, or weakness in the foot — that isn't just a stiff back.
• Pain lasting more than 7–10 days with no improvement at all, or that wakes you at night.
• A sharp pain during a lift that leaves you unable to stand up straight.
• Any loss of bladder or bowel control — same day, urgently.
• If you have a diagnosed disc herniation, spondylolisthesis, or recent spinal surgery, get clearance before adding either lift.

The short version

• The conventional deadlift is a floor-based strength lift: 3–5 sets of 3–6 reps at 75–85% of max.
• The Romanian is a standing hamstring lift: 3–4 sets of 6–10 at 50–65% of your conventional deadlift.
• Knees stay bent 10–20 degrees on Romanians; depth goes as far as your back stays flat, no further.
• Don't train both heavy in one session — leave 48–72 hours between them.
• Pain running down the leg, lasting over 10 days, or waking you at night belongs at the doctor's, not the gym.