1. What is Acre-feet to Gallons Conversion?

An acre-foot (ac-ft) is a unit of volume commonly used in the United States to measure large-scale water resources. It represents the volume of one acre of surface area to a depth of one foot. This calculator converts acre-feet to gallons, which is useful for water management and irrigation planning.

2. How Does the Calculator Work?

The calculator uses the conversion formula:

Where:

• 1 acre-foot = 325,851.42857 gallons (US)
• This conversion factor is based on the US survey foot definition

Explanation: The conversion is a straightforward multiplication since it's a direct unit conversion.

3. Importance of Volume Conversion

Details: Converting between acre-feet and gallons is essential for water resource management, irrigation planning, reservoir capacity calculations, and water rights allocations.

4. Using the Calculator

Tips: Enter the acre-feet value you want to convert. The value must be positive. The result will show the equivalent volume in gallons.

5. Frequently Asked Questions (FAQ)

Q1: How many gallons are in one acre-foot?
A: There are exactly 325,851.42857 US gallons in one acre-foot.

Q2: What is an acre-foot used for?
A: Acre-feet are primarily used to measure large volumes of water for irrigation, reservoirs, and water supply planning.

Q3: Is this conversion the same worldwide?
A: This conversion uses US gallons. The Imperial (UK) gallon is about 20% larger, so conversions would differ slightly.

Q4: How does this relate to household water use?
A: The average US household uses about 0.5 acre-feet of water per year (approximately 163,000 gallons).

Q5: Why use acre-feet instead of just gallons?
A: Acre-feet provide a more intuitive measurement for large-scale water applications like agricultural irrigation or reservoir storage.