Question 1

Why use acre-feet at all?

Accepted Answer

Reservoir surface area × depth gives acre-feet naturally. The unit matches how engineers measure ponds, lakes, and irrigation deliveries.

Question 2

How big is 1 acre-foot?

Accepted Answer

Enough water for 1–2 typical American households for a year, or roughly 3 backyard swimming pools.

Question 3

What is a cubic feet per second-day (cfs-d)?

Accepted Answer

1 cfs flowing for 24 hours = 1.983 ac-ft. Used in stream-flow accounting.

Question 4

Convert ac-ft to liters?

Accepted Answer

1 ac-ft = 1,233,482 L = 1,233 m³. Useful for international comparisons.

Acre-Feet ↔ Million Gallons Converter