Relative Strength Calculator
Calculate your strength relative to bodyweight. Useful for comparing lifters of different sizes and tracking strength-to-weight progress over time.
What Is Relative Strength?
Relative strength is your lift expressed as a multiple of your bodyweight. A 90 kg lifter benching 135 kg has a relative strength of 1.5x. A 60 kg lifter benching 90 kg also has a relative strength of 1.5x. Relative strength allows fair comparison between lifters of different sizes and is the most intuitive measure of functional strength.
Absolute strength (the total weight lifted) favours heavier lifters. Relative strength rewards those who are strong for their size. For sports and functional fitness, relative strength is often the more meaningful metric - the ability to control and move your own body and loads proportional to it.
Relative strength ratios also serve as useful programming benchmarks. Many coaches use ratios like squat:deadlift (0.8-0.9:1), bench:bodyweight (1.0-1.5x), or squat:bodyweight (1.25-2x) to assess overall strength balance and identify weaknesses to address.
Frequently Asked Questions
What is a good relative strength for the squat?
A bodyweight squat (1x) is an intermediate standard for most male lifters. 1.5x is considered advanced; 2x bodyweight is elite. For female lifters, 0.8x is intermediate, 1.2x is advanced. These vary significantly by bodyweight - check the squat standards page for precise figures.
What is a good bench-to-bodyweight ratio?
A 1x bodyweight bench (benching your own bodyweight) is often cited as an intermediate standard for male lifters. 1.25x is advanced; 1.5x and above is elite. For female lifters, 0.7x bodyweight is a strong intermediate standard.
Does relative strength decline as bodyweight increases?
Yes. Muscle strength scales approximately to the 2/3 power of bodyweight, not linearly. This means heavier lifters tend to have lower relative strength but higher absolute strength. Powerlifting coefficients like Wilks and DOTS attempt to account for this non-linear relationship more accurately than simple bodyweight division.
What is the difference between relative strength and Wilks score?
Relative strength simply divides the lift by bodyweight. Wilks score uses a polynomial formula to account for the non-linear relationship between bodyweight and strength capacity, making it more accurate for comparing lifters across very different weight classes. For general use, relative strength ratios are intuitive and sufficient.