Relative Strength Calculator

Relative strength is the simplest way to size a lift against the person doing it: weight lifted divided by bodyweight. Enter your bodyweight and your three lifts, and the highlighted result is the multiple of bodyweight your total represents.

The arithmetic

Relative strength = total ÷ bodyweight

An 80 kg lifter (176 lb) with a total of 400 kg (882 lb) — squat 140, bench 100, deadlift 160 — comes out at 400 ÷ 80 = 5.00× bodyweight. Same lifter at 90 kg with the same total drops to 4.44×, which is the useful and slightly uncomfortable property of the metric: it moves when you change weight, not only when you get stronger.

The same division works on a single lift. A 180 kg deadlift at 80 kg is 2.25× bodyweight; the “two-times-bodyweight deadlift” milestone is exactly this arithmetic with a target attached.

Why it is not a fair ranking tool

Muscular force scales roughly with cross-sectional area while body mass scales with volume, so a larger lifter lifts more in absolute terms and less per kilogram of themselves. Every relative strength comparison across bodyweights is therefore biased, and the bias always runs the same way.

The size of it is not a matter of opinion. The IPF defines the average elite performance at each bodyweight as exactly 100 GL points, which lets you read the elite total straight off the formula and divide by bodyweight. The calculator above prints your own GL score under “See all scores”, so you can see how far you sit from the 100 that defines every row of this table:

Bodyweight (men, classic)	Elite-standard total	Relative strength
59 kg (130 lb)	604 kg / 1,332 lb	10.2×
66 kg (146 lb)	642 kg / 1,414 lb	9.7×
74 kg (163 lb)	681 kg / 1,502 lb	9.2×
83 kg (183 lb)	722 kg / 1,593 lb	8.7×
93 kg (205 lb)	764 kg / 1,685 lb	8.2×
105 kg (231 lb)	810 kg / 1,786 lb	7.7×
120 kg (265 lb)	860 kg / 1,897 lb	7.2×

Same standard of achievement, from 10.2× down to 7.2×. Rank those seven athletes by relative strength and the lightest one wins every time, despite all of them being, by the federation’s own definition, equally good. That is the distortion the coefficient formulas were built to remove — see the Wilks calculator for the polynomial version and Wilks versus DOTS for how much the different corrections disagree.

What it is good for

Three things, and they are real:

• Tracking yourself over time. Your bodyweight is close to constant month to month, so the multiple climbing is genuine progress, and it captures the case where you gained strength and lost weight at once — which the raw total hides.
• Bodyweight-limited sports. Climbing, gymnastics, wrestling and anything where you move your own mass care about the multiple directly, not about a normalized score.
• A fast sanity check. No table, no coefficient, no calculator required at the gym.

What it is not good for is deciding who wins. For that, use a scored comparison and, to see where a total sits against the elite standard rather than against a multiple, the strength standards chart. To assemble the total in the first place, the powerlifting total calculator follows the competition rule: the heaviest successful attempt on each of the three lifts.

This content is informational and does not replace coaching or medical advice.