Why strength is measured relative to bodyweight
Absolute lifting numbers are a poor basis for comparison across different body sizes. A 120 kg powerlifter squatting 180 kg is lifting 1.5× bodyweight; a 70 kg recreational lifter squatting 100 kg is lifting 1.43× bodyweight — comparable strength levels despite very different absolute numbers. Using the lift-to-bodyweight ratio (also called relative strength) creates a fair, size-adjusted classification that works across a wide range of athletic populations.
Sex differences in relative strength standards reflect well-documented physiological differences in upper- and lower-body muscle mass distribution. Women carry a similar proportion of lower-body muscle to men but less upper-body muscle, so squat standards are closer between sexes than bench press standards. Published strength standards also disagree on the exact cut points, which is why this page treats the labels as benchmark bands and shows the ratio, the next-level gap, and the roadmap target instead of relying on the label alone.