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.

Sleep vs Recovery Score — Readiness Before Training

Sleep vs Recovery Score

Enter last night's sleep duration and your prior training load to get a simple recovery readiness score — so you know whether to train hard or go easy today.

100% client-side · no upload

Sleep last night (hours)

Prior session training load (AU)

Use the Training Load Calculator to get this value.

How to use

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.

Related sport tools

Training Load Calculator — calculate the load score for any session
Gym Rest Timer — countdown between sets
VO₂ Max Estimator — estimate aerobic capacity
Sleep Cycle Calculator — optimal wake and bedtimes

よくある質問

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.