247SportTools
Fitness · Nutrition

Water Intake Calculator

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

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 →

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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.