Strength symmetry calculator
Comparing raw numbers across different lifts tells you nothing, because a 200 kg deadlift and a 100 kg bench are not equivalent achievements. This ranks each lift on its own standard, then measures how tightly the percentiles cluster.
Strength Symmetry Calculator
Strength symmetry scores how evenly your lifts are developed by ranking each one against its own standard and comparing the resulting percentiles: symmetry equals 100 minus the gap between the highest and lowest percentile. Above 85 is well balanced, while below 75 usually means one lift has been neglected.
Bench Press is lagging behind Deadlift
Method notes (2)
- Each lift is ranked on its own StrengthLevel standard, then compared by percentile — so a strong bench and a lagging squat show up as an imbalance even though the kg differ.
- Your Bench Press (intermediate, 73th pct) lags your Deadlift (advanced, 87th pct) by 14 percentile points — prioritize the lagging lift to even things out.
Metric or imperial · runs the same code as the app · nothing is sent anywhere
How it works
Every lift is scored independently against its own strength standard for your sex, bodyweight and age, which converts each one into a percentile. Symmetry is then 100 − (highest percentile − lowest percentile).
A score near 100 means your lifts are developed evenly. A spread of 20 points or more usually points at a real imbalance — often a bench that has outrun the squat, or a deadlift carried by leverages rather than trained directly.
Common questions
What symmetry score should I aim for?
Above 85 is well balanced. Below 75 usually means one lift has been neglected or one is disproportionately favoured by your leverages. Treat the lagging lift as a programming priority rather than a flaw.
Does an imbalance matter if I only care about one lift?
Somewhat. A lagging squat will eventually cap a deadlift, and weak posterior chain work limits almost everything. But if you compete in bench only, a lopsided profile is a deliberate trade rather than a problem.
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