Hydration + Electrolyte Advisor

A simple workout hydration and sodium range based on duration, sweat level, and climate. This is not medical advice — use it to get a practical starting point.

What this tool does

Provides a practical fluid and sodium range for your workout so you can hydrate with intention instead of guessing.

Who and when to use it

Endurance or field-sport athletes in warm conditions.
Heavy sweaters prone to cramps or big post-session fatigue.
Anyone who wants a repeatable hydration routine for 45+ minute sessions.

Step-by-step usage

Enter weight and expected training duration.
Pick sweat level and climate honestly.
Set focus (performance, cramp-risk, or BP caution).
Use the midpoint of the fluid/sodium range as your first test day.

Example interpretation

If your range is 700-900 mL and 450-700 mg sodium, prepare one bottle near the midpoint and sip every 10-15 minutes during training.

FAQ

Do I need electrolytes for short sessions?

Often not; water may be enough for short, cool workouts.

Why is there a range, not one number?

Sweat rate varies with heat, pace, and individual physiology.

Can I overdo sodium?

Yes. If sodium-sensitive or advised to limit sodium, stay conservative and consult a clinician.

Should carbs be added too?

For longer sessions (around 90+ minutes), carbs can support energy alongside hydration.

Next best tools

Hydration Needs by Weather & Activity · Training Day Fueling Assistant · Recovery-Driven Calorie Engine · Meal Timing Optimizer