Daily Water Intake Calculator — Free Online Calculator & Formula Guide
Calculate your recommended daily water intake based on body weight, activity level, and climate. Free, instant, and accurate.
✓ Formula verified: January 2026For informational purposes only
Goal
Water Intake
Results below
Enter Values
Daily Water Intake
2.5 liters (85.0 oz)
In Cups (8 oz each)
11 cups/day
In Milliliters
2514 mL/day
Base Intake (weight-based)
2.5 liters
What if your body weight changes? 153 → 2.3 liters (76.5 oz) · 170 → 2.5 liters (85.0 oz) · 187 → 2.8 liters (93.5 oz)
Scenario Comparison
Conservative (5%)
$16,470.09
$6,470.09 interest
Your scenario (7%)
$20,096.61
$10,096.61 interest
Aggressive (10%)
$27,070.41
$17,070.41 interest
High-risk (14%)
$40,224.71
$30,224.71 interest
Best return
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Daily Water Target
Total Daily Target
2.6 L
Cups
11
mL
2514
Activity
Sedentary
Climate
Temperate
Base Intake (weight-based)
2.5 liters
+ adjustments for activity & climate
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