What is relative strength?

Relative strength is how much you can lift expressed as a multiple of your bodyweight, for example a 1.5x bodyweight bench. It lets you compare lifters of different sizes fairly, since a lighter lifter moving the same absolute load is relatively stronger.

Where do the standards come from?

The tiers use widely cited lift-to-bodyweight benchmarks common in strength training: roughly 2x bodyweight squat, 1.5x bench, 2.5x deadlift, and 1x overhead press mark an advanced male trainee. They are general guides, not absolute rules.

Do standards differ for women?

Yes. Women typically reach lower bodyweight multiples on upper-body lifts in particular. This tool uses general unisex benchmarks, so women should expect to be classified a tier lower on bench and press relative to these numbers.

Should I use a true 1RM or an estimate?

Either works. If you do not have a recent true single, use a one-rep-max estimate from a set of 3 to 8 reps via an Epley or Brzycki calculator, then enter that figure here.

Why is the deadlift standard higher than the squat?

The deadlift uses the most muscle mass and the most favourable leverage, so trained lifters generally pull more than they squat. That is why the advanced deadlift benchmark sits around 2.5x bodyweight versus 2x for the squat.

Relative Strength Index Calculator

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Absolute load tells you how much weight is on the bar, but relative strength — load as a multiple of your bodyweight — is the fairer way to compare lifters and track real progress. This calculator computes the ratio for each main lift and places it on a strength tier.

How it works

Each lift is divided by bodyweight and compared to tier thresholds:

ratio = lift 1RM / bodyweight

tier per lift (bodyweight multiples):
  squat      novice 1.0  intermediate 1.5  advanced 2.0  elite 2.5
  bench      novice 0.75 intermediate 1.0  advanced 1.5  elite 2.0
  deadlift   novice 1.25 intermediate 1.75 advanced 2.5  elite 3.0
  press      novice 0.5  intermediate 0.7  advanced 1.0  elite 1.2

A ratio at or above a threshold earns that tier; the highest threshold reached sets your level for that lift.

Example and tips

An 80 kg lifter with a 160 kg squat (2.0x), 120 kg bench (1.5x), 200 kg deadlift (2.5x), and 80 kg press (1.0x) lands at the advanced tier on every lift. Units cancel out in the ratio, so it does not matter whether you enter kilograms or pounds, as long as lift and bodyweight use the same unit.