HYROX, Fuelled/Sweat check

Sweat Rate
Calculator

No lab, no spreadsheet. Add your weight, sweat level, session effort, and heat. We will estimate what you lose. If you have a real weigh-in, use it for a better number.

About you & the session

kg

Noticeably sweaty, top is wet by the end.

Race pace or a hard simulation - breathing hard.

A typical gym, or an AC event hall in Delhi or Mumbai.

min
ml
Done a real weigh-in? Use that number

Weigh yourself in minimal dry clothing right before and after a session, towelling off sweat first. This gives a better number.

kg
kg

Uses the time and fluid values above.

Estimated sweat rate
- ml/hr
Fill in the form to see your estimate.
Fluid lost this session-
Net deficit after drinking-
Sodium lost-
Sodium / hour-

What to do with this

Your fluid and sodium guide will appear here once you estimate.