247SportTools
Fitness · Nutrition

Water Intake Calculator

Estimate your daily fluid needs from bodyweight, activity and climate.

Last updated: 4 October 2026

Reviewed by Jordan Morley, FA Level 2 Football Coach

Daily water needs

Suggested daily fluid
—

Top picks compared

PickProductBest for
Top pick HidrateSpark Pro Smart Water Bottle Glows and alerts your phone to remind you to drink. Tracks actual hydration vs. calculated targets. Check price →
Option S'well Traveler Water Bottle (40oz) Insulated to keep water cold all day. Makes hitting your daily intake target more pleasant. Check price →
Option Liquid IV Hydration Multiplier Electrolyte powder to enhance hydration absorption. Especially useful for hot climates or intense training. Check price →

As an Amazon Associate we earn from qualifying purchases. Prices shown on Amazon at time of click.

Frequently asked questions

Can I drink too much water?

Rarely, but yes — over-drinking during long endurance events can cause hyponatraemia. Match intake to sweat losses rather than forcing litres.