Strength & fitness

How strong are you really?

Compare your bench, squat, deadlift, and overhead press to age- and bodyweight-matched peers — try the percentile calculator on this page, then save your history with a free account.

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By Aziz Mezlini, PhD · Founder & Scientist, Carthalis · Updated 2026-05-25

Wellness education, not diagnosis · Not for emergencies

What strength percentiles mean

A strength percentile is an educational fitness metric that ranks your one-rep max on a lift against age-, sex-, and bodyweight-matched peers using population reference tables — not a medical test or clinical assessment.

A global percentile compares your absolute lift to everyone in the reference group. A bodyweight-adjusted percentile accounts for size so a lighter lifter can compare fairly on bench press percentile, squat percentile, and other compound lifts.

Carthalis calibrates benchmarks for everyday lifters — useful strength standards by bodyweight context without implying medical diagnosis. A lifting percentile is motivation and training context, not a clinical score.

Estimate your strength percentile

Use the strength percentile calculator on this page to compare bench press, squat, deadlift, and overhead press against population benchmarks — a strength percentile calculator app experience without signup required to try.

Find your strength percentile

Pick a lift, enter your 1-rep max and bodyweight. We rank you against StrengthLevel population anchors and, if you want, lift that to the general population using CDC NHIS 2020 training rates.

Your inputs

We don't store these values until you sign up. The default view ranks you within the trained population on StrengthLevel.

Your result

Fill in your inputs to see your personalised result here. The calculator runs entirely on this page — no signup required to try.

Wellness education, not medical or sports-medicine advice. Use safe form and a spotter for heavy 1RM testing.

Create a free account to save your percentile history, track 1RM trends, and unlock your full Fitness workspace.

Save your result with a free account

Methodology

  • StrengthLevel.com — population anchors per lift, gender, and bodyweight bucket
  • CDC NHIS 2020 muscle-strengthening activity participation (MMWR 2022;71:642) — drives the trained-to-general-population transform
  • Carthalis percentile engine (faithful TS port of the in-app `percentile_engine`)

Create a free account to save your percentile history, track lifts over time, and unlock your full Fitness workspace.

Wellness education, not diagnosis.

How our methodology works

The Carthalis strength percentile calculator draws on the STRENGTH_PERCENTILES reference table and the backend percentile_engine to rank everyday lifters against general-population benchmarks — not elite-athlete-only charts.

  1. Match your profile

    Enter bodyweight, sex, and age so the strength percentile calculator can compare you to peers in the same demographic band.

  2. Look up your lift

    Your one-rep max on bench press, squat, deadlift, or overhead press is matched against the STRENGTH_PERCENTILES reference table.

  3. Compute your rank

    The backend percentile_engine returns an educational percentile and strength band — general-population benchmarks for everyday lifters, not elite-athlete-only charts.

  4. Save and track over time

    Create a free account to save percentile history, track lifts, and unlock your full Fitness workspace and Twin strength scores.

Supported lifts on this page: bench press, squat, deadlift, and overhead press. Results are educational fitness context for the strength percentile calculator — not sports-medicine or clinical assessment.

Strength by exercise and body weight

Compare major compound lifts with bodyweight-adjusted context. An average bench press percentile or squat percentile helps answer how strong am I for my body weight without treating strength as a medical measure.

ExerciseBodyweight note
Bench pressBodyweight-adjusted bench press percentile helps compare lifters at different sizes — a key input for how strong am I for my body weight questions.
SquatSquat percentile ranks your one-rep max against age- and sex-matched peers; useful for strength standards by bodyweight comparisons.
DeadliftDeadlift percentile reflects total-body pulling strength relative to population reference tables.
Overhead press (OHP)Overhead press percentile complements bench press percentile for a fuller upper-body strength picture.

Wellness education, not diagnosis

Wellness education, not diagnosis.

Not for emergencies — call your local emergency line.

Carthalis is not a medical device.

Strength comparisons are general guidance — consult a coach for individualized programming.

Read our full trust commitment on Trust & Safety.

Common questions

A strength percentile is an educational fitness metric that ranks your one-rep max on a lift against age-, sex-, and bodyweight-matched peers using population reference tables — not a medical test or clinical assessment. Carthalis is a personal health companion that helps you see yourself clearly across fitness, nutrition, and recovery: try the strength percentile calculator on this page for bench press, squat, deadlift, and overhead press, then create a free account to save your results, track lifts over time, and unlock your full Fitness workspace and Twin strength scores. Estimates draw on the Carthalis STRENGTH_PERCENTILES reference table and backend percentile_engine, which calibrates general-population benchmarks for everyday lifters rather than elite athletes only. Carthalis provides wellness education, not medical diagnosis or treatment, and is not for emergencies — call your local emergency line for urgent care. Strength benchmarks are general guidance; consult a qualified coach or clinician for individualized programming. Carthalis is not a medical device. You control what you share.

Save your percentile history

Create a free account to save your percentile history, track lifts over time, and unlock your full Fitness workspace.

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