Weighted pull-up and dip calculator
A set of five with 20 kg on the belt is not a 20 kg set — at 80 kg bodyweight it is 100 kg moving. Everything below works from that number, and then gives you back the only part you can actually load.
What your maximum means for other rep counts
| Reps | Weight on the belt |
|---|---|
| 1 | — |
| 2 | — |
| 3 | — |
| 5 | — |
| 8 | — |
| 10 | — |
| 12 | — |
Why this is not the ordinary 1RM calculator
Feed a bodyweight movement into a normal calculator and you get a number you cannot use. Put in 20 kg and it estimates a maximum of 22.5 kg, which is nonsense: you were never lifting 20 kg. Put in the full 100 kg and it estimates 112.5 kg, which is true and equally useless, because 100 of those kilos are you. The useful answer is the difference, and that is what sits above.
Full bodyweight is counted, which is the convention every chart uses — in a pull-up your forearms and hands do not travel with the rest of you, so the true moving mass is a little lower. The estimate inherits the limits of any rep-max formula too: trustworthy up to about five, loose past ten.
Questions this raises
- Does bodyweight really count as part of the lift?
- Your muscles do not know which kilos came from a plate. A 90 kg lifter doing a pull-up with nothing on the belt is moving more than a 60 kg lifter with 20 kg hanging, and the first one will usually be stronger in the gym even though the second one's belt looks more impressive. That is the whole reason this page exists: the number people quote is the small half.
- Why does the table stop giving numbers at high reps?
- Because the answer would be below your bodyweight, and you cannot take weight off yourself. It means the estimate puts that rep count beyond what you can do unloaded — a band or a machine would be the honest way to get there, not a negative plate. As your maximum climbs, those rows fill in on their own.
The rock won't move itself.
Log the set instead of retyping it. The app keeps the history and draws the curve.
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