THRYVE · HYDRATION

Working outside today?

A hot shift on your feet loses more fluid than you think — and plain water alone can fall short. Answer a few honest questions and we'll turn it into a real daily number, flag when electrolytes matter, and show you the heat-illness signs worth knowing.

Your estimated daily water target

—oz

Enter your weight to estimate it.

Do electrolytes matter today?

—

Tell us about your shift below.

About you & your shift

A few honest inputs make this yours, not a generic rule of thumb.

Body weight

Units

How hard is the work?

Time outside in the heat today — minutes (shift length)

Extra hard exertion — minutes of really sweaty work

How hot is it?

Anything else? Sweating heavilySoaked shirt, dripping — real sweat loss.

Get the hot-shift hydration cheat sheet

Daily water ranges by body size, the real signs you're low on electrolytes, and the heat-illness signs every outdoor crew should know. No spam.

General educational estimate, not medical advice. Hydration needs vary; certain conditions (kidney, heart) require a doctor's guidance — consult a healthcare provider, especially if on medication, ill, or on a GLP-1. This tool does not diagnose, treat, cure, or prevent any condition. Baseline assumes ~33 mL/kg/day of total water adjusted for activity, climate, and time in heat; roughly 20% comes from food, so the headline number is the amount to drink. Over-drinking carries its own risk (hyponatremia) — don't exceed about 1 L (32 oz) per hour sustained. For confusion, fainting, or suspected heat stroke, call 911.

These statements have not been evaluated by the FDA. Thryve products are not intended to diagnose, treat, cure, or prevent any disease.