1. What is Gallons to Acre-Feet Conversion?

The conversion between gallons and acre-feet is used to translate between common volume measurements and large-scale water volume measurements used in agriculture and reservoir management.

2. How Does the Calculator Work?

The calculator uses the conversion formula:

Where:

• 1 acre-foot = 325,851 gallons (US)
• This is the volume of water covering 1 acre to a depth of 1 foot

Explanation: The conversion factor is derived from the definition of an acre-foot in terms of US gallons.

3. Practical Applications

Details: Acre-feet are commonly used to measure large water volumes in irrigation, reservoir capacity, and water rights allocations.

4. Using the Calculator

Tips: Enter the volume in gallons (must be a positive number) and the calculator will provide the equivalent in acre-feet.

5. Frequently Asked Questions (FAQ)

Q1: Why use acre-feet instead of gallons for large volumes?
A: Acre-feet provide a more intuitive measure for agricultural and water management purposes, relating water volume to land area coverage.

Q2: How many gallons are in an acre-foot?
A: Exactly 325,851 gallons (US) make up one acre-foot.

Q3: What's the difference between US and imperial gallons?
A: This calculator uses US gallons (1 US gal = 3.78541 liters). Imperial gallons are larger (1 imp gal = 4.54609 liters).

Q4: How precise is this conversion?
A: The conversion factor is exact, though practical measurements may have some rounding.

Q5: What are typical values in acre-feet?
A: Small reservoirs might be hundreds of acre-feet, while large ones can be millions of acre-feet.