Deficit deadlift percentage
What standing on a plate really costs you off the floor.
A range, not a number — because the same variation costs one lifter 4% and another 14%. The app turns it into a single weight and remembers your coefficient.
Want the exact number?Set the pause and the eccentric, pick reps and RPE, get one weight — and the app learns your own coefficient.
Get the free appWhat percentage should you use for deficit deadlifts?
A deficit deadlift from a 1-inch (2.5 cm) platform is typically 91–98% of your competition deadlift, and 85–94% from 2 inches (5 cm). The extra range of motion makes the start harder while the lockout is unchanged, so lifters who are weak off the floor lose the most.
Deficit height and typical load
| Variation | Typical range | What moves it |
|---|---|---|
| Floor (competition) | 100% | The reference |
| 1 inch / 2.5 cm | 91–98% | Small change, mostly positional |
| 2 inches / 5 cm | 85–94% | The usual prescription |
| 3 inches / 7.5 cm | 80–90% | Position often breaks before strength |
| Snatch grip from the floor | 78–88% | Same idea via grip width |
Why the deficit hits the start and nothing else
Standing on a platform means the bar starts lower, so your hips start lower and the range of motion is longer. Everything above the knee is unchanged: same leverages, same lockout. The whole cost of the variation is concentrated in the first few centimetres.
That makes it a diagnostic as much as a training tool. If a 2-inch deficit costs you 15%, your start is your weak point. If it costs you 6%, your deadlift is limited somewhere else — usually the lockout — and rack pulls or block pulls would be a better use of the block.
The deficit also punishes bad positions harder than a normal pull does. Rounding that you can get away with from the floor becomes a missed rep from a deficit, which is exactly why the variation is worth programming — but it means your numbers should be conservative while the position is still new.
What moves your number
- How strong you are off the floor relative to your lockout.
- Hip and hamstring mobility: a deficit demands more of both to reach the bar in position.
- Sumo versus conventional — a deficit is far more punishing for sumo pullers.
- Deficit height and whether it is consistent between sessions.
How to find your own number
Three sessions and a bit of honesty are enough to replace the range with your own coefficient.
- Work up to a set of 3 on the deficit deadlift and stop at RPE 8 — two reps left in the tank, honestly judged.
- Divide the weight you used by the weight you would have used for 3 reps @ RPE 8 on your competition deadlift. That ratio is your coefficient.
- Repeat it once or twice over a training block. If the number holds within a couple of percent, that is your number — use it instead of the range.
PRO What the app does with it
- Applies the pause and the eccentric on top of the variation, second by second — the first second costs the most, the following ones progressively less.
- Crosses it with the RPE chart, so you get the weight for 3 reps @ RPE 8 on that variation, not just a max.
- Learns your personal coefficient from a set you actually did, then remembers it for every future session.
- Works offline, in the gym, with the plates already worked out.
Stop guessing on your variation days
RPE Calculator for Android is free. The variation calculator — pause, tempo, deficit, boards — comes with the one-time Pro unlock. No subscription.
Get the free app Launching on Google Play — final testingFree download · Pro is a single one-time unlock · No subscription
Frequently asked questions
How much lighter is a deficit deadlift?
Usually 2–9% lighter from 1 inch and 6–15% lighter from 2 inches, so 91–98% and 85–94% of your competition deadlift respectively.
How high should a deficit be?
One to two inches covers almost every useful case. Beyond three inches, position tends to break down before the training effect improves.
Are deficit deadlifts good for sumo?
They work, but they are much harder for sumo pullers because the starting position is already extreme. Expect a bigger drop than a conventional puller would see, and start lower.