#wilks

Powerlifting strength-score maths as an API, computed locally and deterministically — the Wilks, DOTS and IPF GL numbers a meet, gym or training app uses to compare lifters across bodyweights and sexes. The wilks endpoint gives the classic Wilks coefficient (1996) and score: total × 500 ÷ a fifth-order polynomial in bodyweight, with separate male and female curves — long the federation standard for "best lifter", a 100 kg man totalling 600 kg scores about 365. The dots endpoint gives the modern DOTS score (2019), the same total × 500 ÷ polynomial idea but fitted to updated data with a fourth-order curve that is fairer across the weight classes and not skewed to the middleweights, now the default in most raw meet software. The ipf-gl endpoint gives the International Powerlifting Federation's current GL Points (2020): 100 × total ÷ (A − B·e^(−C·bodyweight)), with separate constants for sex and for raw (classic) versus equipped lifting, the official metric at IPF championships. Everything is computed locally and deterministically, so it is instant and private. Ideal for meet-management and scoring software, gym leaderboards and training-log apps, and strength-sport tools. Pure local computation — no key, no third-party service, instant. 3 compute endpoints. For one-rep-max estimation and plate loading use a strength-training API.

api.oanor.com/powerlifting-api

Strength-training maths as an API. The one-rep-max endpoint estimates your one-rep max from a set of a given weight and reps using five established formulas — Epley, Brzycki, Lander, Lombardi and O'Conner — with their average, and returns a rep-max table showing the estimated weight (and percentage of 1RM) for 1 to 12 reps. The plates endpoint works out exactly which plates to load on each side of a barbell for a target weight, given the bar weight and the plate denominations you have, and tells you whether the target is achievable exactly. The wilks endpoint computes the Wilks (classic) and DOTS relative-strength scores from bodyweight and total lifted, so lifters of different sizes can be compared fairly. Everything is computed locally and deterministically, so it is instant and private. Ideal for gym and lifting apps, powerlifting and strength coaching, workout planners and progression trackers, and fitness wearables. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 4 endpoints. This is strength maths; for BMI, BMR and calories use a health-calculator API and for heart-rate training zones use a heart-rate API.

api.oanor.com/strength-api