What is it & why use it?
Find out how much water you should drink daily based on your weight, activity, and climate using our Water Intake Calculator. This tool on Calci.in helps you customize hydration needs for better health and performance.

Formula (explained)
Daily Water Intake (liters) = Weight (kg) × 0.033
(Adjust for activity & climate)
Variables: Weight = body mass in kilograms, Activity & Climate = adjustments for sweating and hot weather.

Example calculation
Weight 70 kg → 70 × 0.033 = 2.31 liters/day (before adjustments).

Benefits & use cases
• Stay hydrated daily
• Plan workout hydration
• Prevent dehydration & improve health

Related calculators on Calci.in
BMI Calculator
Calorie Calculator
Protein Intake Calculator

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FAQs
Q1: Is 8 glasses rule enough?
A: It’s a general guideline; actual needs depend on weight, climate, and activity.
Q2: Can too much water be harmful?
A: Yes, excessive intake can cause water intoxication (hyponatremia).
Q3: Does food contribute to water intake?
A: Yes, fruits and vegetables also provide hydration.
Q4: Should athletes drink more?
A: Yes, physical activity increases water requirements.