HYDRATION NEEDS CALCULATOR

Find out how much water you need daily based on your weight, exercise, and climate. Quick, accurate hydration needs calculator for all activity levels.

SMART FUEL FOR GROWING BODIES

Get a personalised snapshot of your teen’s energy needs to support growth, performance and health – no guesswork required – using our free Calorie Calculator down below!

Hydration Needs Calculator

Body Weight (kg): Exercise Duration (minutes/day): Climate: Sex (optional):

Daily Hydration Needs Calculator

Use the calculator above to explore an estimate of your daily fluid needs. It supports planning and does not replace individual advice.

Hydration Calculator Questions

Is the result an exact fluid target?

No. Fluid needs vary with activity, weather and individual circumstances. The result is an estimate.

What if I have a medical condition or a prescribed fluid limit?

Follow the advice of your treating health professional. Explore personalised dietitian support for help applying nutrition advice to your needs.