Daily Water Intake

Quick estimate using the common ½ oz per pound rule, plus activity and climate adjustments. Live results.

Body weight (lbs)

Exercise / active time (min/day)

Climate / conditions

Target for the day

fl oz per day

Cups (8 oz)

12.1

Liters

2.9 L

Bottles (16.9 oz)

5.7

Breakdown (fl oz)

Base (½ oz × lbs)+85

Activity+12

Climate / other0

Total97 fl oz

Runs locally. This is a starting estimate — listen to your body and thirst. Athletes or medical needs may differ.