Who Lifts More?

I built this because I was having an argument with my husband.

We'd both been training for a while, and the question came up — who's actually stronger? Not just who lifts more weight, but who's performing better relative to their physiology.

The problem with every calculator I found was that they compared men and women on the same scale, which isn't fair in either direction. A woman deadlifting 115kg and a man deadlifting 115kg are not equally impressive — but the gap isn't as simple as "men are stronger." It depends on bodyweight, height, age, and which lift you're talking about. Upper body strength differences between men and women are larger than lower body differences. A taller person has a mechanical advantage on deadlift but a disadvantage on bench press. A 57-year-old man and a 39-year-old woman shouldn't be judged by the same standard.

So I built something that takes all of that into account.

Who Lifts More adjusts for:

• —Gender — using research-backed strength ratios (upper body ~55%, lower body ~65%)
• —Age — peak strength is 25–35, with gradual adjustments either side
• —Bodyweight — heavier lifters have a higher absolute baseline
• —Height — affects leverage differently depending on the lift

The result is a fair comparison. A score of 70 means the same thing whether you're a 60kg woman or a 100kg man.

It's designed for couples, training partners, and anyone who wants to settle a gym argument properly.

If you've got feedback, found a bug, or just want to tell me who won — I'd love to hear it.