Irrigation water volume calculator
Educational water-use arithmetic for farm recordkeeping.
Water use and pumping planner
Enter measured or hypothetical numbers. No result establishes a legal water allocation or permits water withdrawal.
1 acre-inch ≈ 27,154.3 gallons. Water rights and permitted annual/seasonal limits require independent confirmation.
Keep actual authorizations separate
The calculator computes a volume estimate only. Compare the result against the applicable permit, irrigation district delivery contract, aquifer rules, conservation requirements and drought notices before proceeding.
Official sources to verify
Do not rely on this directory as a permit or legal determination. Confirm the actual rule, location, water source, service area, and effective date with the issuing agency.