RV Fresh Water Calculator
Estimate how many days your RV fresh water tank will last based on the number of people, shower frequency, and daily usage habits.
Inputs
gal
gal/day
gal/day
Results
Days of Water
2.1 days
Daily Usage
19 gal
Gallons Per Person/Day9.5 gal
Conservation Target12.9 gal/day
Refill Every2 days
How to Use This Calculator
- Enter your fresh water tank capacity (gallons).
- Set the number of people in your party and showers per day (each person).
- Enter cooking water and dishwashing water estimates per day.
- Review total daily water usage, days of supply in your tank.
- Reduce shower time to 3-4 minutes to dramatically extend your tank range while boondocking.
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