Relative Strength Calculator
Your strength-to-body-weight ratio
AI logs your meals from a photo. Diet & workouts in one app.Get the free appweight lifted, e.g. 140
your body weight in kilograms, e.g. 70
Relative Strength Calculator
A 120 kg bench is impressive at 70 kg body weight and ordinary at 110 kg — raw load alone does not tell you how strong you are for your size. Enter the weight you lifted and your body weight, and this calculator returns your relative strength as a ratio and as a multiple of body weight. Use it to compare lifts across athletes, track strength independent of weight changes, or set body-weight-multiple goals for any lift.
Relative strength is the weight you lift divided by your body weight. It lets you compare strength fairly between people of different sizes — a 100 kg squat means very different things at 60 kg and 90 kg body weight. Coaches often quote milestones as multiples of body weight (for example a 2× body-weight deadlift). Use the same lift and consistent body weight to track progress over time.
Frequently Asked Questions
- What is relative strength?
- Relative strength is how much you can lift compared with your own body weight. The calculator divides the weight lifted by your body weight to give a strength-to-body-weight ratio, letting you compare strength fairly across people of different sizes.
- How do I use the relative strength calculator?
- Enter the weight you lifted for a given exercise and your current body weight in the same unit system. The tool divides the two to show your ratio, for example a 1.5x bodyweight squat, so you can track progress as you gain strength or change weight.
- What is a good relative strength ratio?
- It depends on the lift, but lifting your own body weight (a 1.0x ratio) is a common intermediate benchmark for many movements. Higher multiples such as 1.5x to 2x indicate advanced strength relative to size, while values vary by exercise and training level.