What is an Acre-Foot of Water?
An acre-foot equals about 1,233 cubic meters, a volume commonly used in the United States to measure large water resources like reservoirs. Most countries use the metric system to express water volumes in liters or cubic meters.
- One acre-foot equals 1.233 megaliters.
- Large water bodies may be measured in cubic kilometers.
Calculating Acre-Foot of Water
The United States commonly uses acre-feet to measure large water resources like reservoirs. Equaling about 1,233 cubic meters, one acre-foot covers a football field one foot deep. Using liters or cubic meters, most countries employ the metric system for water volumes.
- The volume for an acre-foot equals 43,560 cubic feet.
- To determine acres, get square feet by multiplying length and width in feet.
Understanding Water Usage Metrics
An acre foot of water equals about 326,000 gallons, or enough water to cover an acre of land 1-foot deep.
- Covering an acre one foot deep, an acre foot of water equals about 326,000 gallons.
- Applying an average 4.7 acre-feet of water per acre, Arizona farmers used.
- Between 2013-2018, total water use declined 5.8 percent.