# LiftGauge

> Powerlifting calculators and strength standards built on the OpenPowerlifting CC0 meet-result dataset. Published standards are computed percentiles or medians from recorded raw competition observations, not invented level multipliers. Each surface names its denominator: counts may be source rows, row-weighted lift observations, or full-power meet rows, and are not unique people.

Dataset identity, filters, counts and integrity hashes: https://liftgauge.com/dataset
Method and formulas (DOTS, Wilks 2020, IPF GL, 1RM formulas, Mifflin-St Jeor): https://liftgauge.com/method

## Data (CC0, stable JSON endpoints)

- [Dataset registry](https://liftgauge.com/dataset): sources, dates, SHA-256 hashes, licensing, citation format
- [cohorts.json](https://liftgauge.com/data/cohorts.json): trailing-12-month squat/bench/deadlift/total percentiles (p10–p99, mean, sd, histogram, n) by sex, IPF bodyweight class, exact age or all ages, and equipment
- [cohorts.meta.json](https://liftgauge.com/data/cohorts.meta.json): exact release identity (dataset_id and policy hash), source/filter dates, observation counts, and integrity hashes
- [strength-age-curve.json](https://liftgauge.com/data/strength-age-curve.json): all-time raw median DOTS at every exact age 18–80 per sex, sample sizes, and the published three-age-smoothed curve
- [Open-source ETL](https://github.com/arvidfcjarfalla-prog/liftgauge-strength-data): the pipeline that builds these files from the OpenPowerlifting dump

## Strength standards (computed percentile tables)

- [All strength standards](https://liftgauge.com/strength-standards): squat, bench press, deadlift, total — median to top 1% by bodyweight class and sex
- [Bench press standards](https://liftgauge.com/strength-standards/bench-press)
- [Squat standards](https://liftgauge.com/strength-standards/squat)
- [Deadlift standards](https://liftgauge.com/strength-standards/deadlift)
- [Average bench press by age](https://liftgauge.com/strength-standards/average-bench-press-by-age): exact-age medians per bodyweight class
- [Average squat by age](https://liftgauge.com/strength-standards/average-squat-by-age)
- [Average deadlift by age](https://liftgauge.com/strength-standards/average-deadlift-by-age)
- [Average powerlifting total by age](https://liftgauge.com/strength-standards/average-powerlifting-total-by-age)
- [Is a 225 lb bench press good?](https://liftgauge.com/strength-standards/is-a-225-lb-bench-press-good)
- [What percent of men can bench 225?](https://liftgauge.com/strength-standards/what-percent-of-men-can-bench-225)

## Calculators

- [Percentile calculator](https://liftgauge.com/rankings): cohort percentile by sex, lift, age, IPF bodyweight class, and equipment; sparse cells follow the disclosed widening policy
- [1RM calculator](https://liftgauge.com/calculator): Epley/Brzycki/Lombardi/O'Conner with RPE
- [DOTS · Wilks · IPF GL scores](https://liftgauge.com/scores)
- [Strength age](https://liftgauge.com/strength-age): DOTS mapped onto the post-peak branch of the published three-age-smoothed exact-age-median curve
- [Attempt planner](https://liftgauge.com/powerlifting-attempt-calculator): nine-attempt meet plan with warmup timeline
- [Weight class calculator](https://liftgauge.com/powerlifting-weight-class-calculator): IPF + USAPL 2026 rulebooks
- [Plate calculator](https://liftgauge.com/plate-calculator)
- [All 24 tools](https://liftgauge.com/tools)

## Embedding and reuse

- [Embed widget](https://liftgauge.com/embed): free auto-updating standards table for any site, attribution included
- Citation format and CC0 terms: https://liftgauge.com/dataset