Is this recovery calculator free?

Yes, completely free with no signup and no usage limits.

Does my data leave my device?

No. All calculations run in JavaScript inside your browser. Nothing is sent to any server.

Yes. The calculator is mobile-first and works on iPhone Safari and Android Chrome.

依據睡眠時數與前一次訓練負荷,評估您的恢復狀態。

100% client-side · no upload

Sleep last night (hours)

Prior session training load (AU)

Use the Training Load Calculator to get this value.

Enter how many hours you slept last night.
Enter yesterday's training load in arbitrary units (AU) — use the Training Load Calculator or enter 0 for a rest day.
Click Calculate Recovery Score to see your readiness and a training recommendation.

Is this recovery calculator free?: Yes, completely free with no signup and no usage limits.
Does my data leave my device?: No. All calculations run in JavaScript inside your browser. Nothing is sent to any server.
Does it work on mobile?: Yes. The calculator is mobile-first and works on iPhone Safari and Android Chrome.

Last updated: 2026-05-20 By jarvisbox