Is this training load 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.

Session RPE (Rating of Perceived Exertion) is a single overall effort score given 30 minutes after the session ends. Rate the whole session on a 1–10 scale: 1 = very easy, 5–6 = moderate, 8–9 = very hard, 10 = absolute maximum.

AU stands for Arbitrary Units. The formula (duration × RPE) produces a dimensionless score used to compare session stress over time, not an absolute physiological measure.

Training Load Calculator

Calculate session RPE training load (duration × RPE) to track weekly stress and recovery balance.

How to use

Enter the total duration of your training session in minutes.
Rate your overall perceived effort for the session on a scale of 1 (very easy) to 10 (absolute maximum).
Results update instantly — see your session training load score and category.

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Frequently Asked Questions

Is this training load 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.
What is session RPE?: Session RPE (Rating of Perceived Exertion) is a single overall effort score given 30 minutes after the session ends. Rate the whole session on a 1–10 scale: 1 = very easy, 5–6 = moderate, 8–9 = very hard, 10 = absolute maximum.
What is the AU unit?: AU stands for Arbitrary Units. The formula (duration × RPE) produces a dimensionless score used to compare session stress over time, not an absolute physiological measure.

Last updated: 2026-05-20 By jarvisbox