Join the beta

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Start estimating and tracking your heat adaptation

Account type

Athlete

Track your own heat adaptation.

Coach

Request coach access for review.

Full name

Sport

Password

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Fitness level

Beginner

Newer to structured endurance training with a lighter weekly workload and shorter steady sessions.

Intermediate

Consistent endurance training base with moderate run or ride volume across the week.

Advanced

Strong training base with regular quality sessions and higher weekly training volume.

Elite

High-performance athlete with dense training load, frequent high-intensity work, and strong competitive conditioning.

Required consents

SWELTR is an educational calculator and tracking tool. It does not provide medical advice, diagnosis, treatment, or prescriptions.

I agree to the Terms of ServiceI consent to SWELTR collecting and processing my biometric data to estimate heat adaptation and support fitness trackingI have no known health contraindications to heat/sauna exposure and will consult a physician if unsure

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