Convert US gallons per second to Acre-feet per minute

Convert US gallons per second (gal/s) to Acre-feet per minute (ac-ft/min) instantly and accurately.

US gallons per second (gal/s)
Acre-feet per minute (ac-ft/min)

Conversion Formula

ac-ft/min = gal/s × 0.0001841329966

About US gallons per second

The US gallon per second (gal/s) equals 3.785411784×10⁻³ m³/s, used for very large pump discharge rates and fire-suppression deluge systems. A large centrifugal fire pump rated 1 500 US gal/min delivers exactly 25 US gal/s; industrial cooling-tower makeup lines are sized in gal/s at peak demand. 1 US gal/s = 3.785411784×10⁻³ m³/s = 60 US gal/min ≈ 227.1 L/min.

About Acre-feet per minute

The acre-foot per minute (ac-ft/min) equals 1233.48183754752/60 ≈ 20.558 m³/s, encountered in large irrigation canal capacity descriptions and reservoir emergency spillway sizing in the US West. A major canal gate releasing 1 ac-ft/min drains a 1-acre field 1 foot deep every minute - a substantial agricultural flow. 1 ac-ft/min ≈ 20.558 m³/s ≈ 726.0 ft³/s.

Quick Reference Table

US gallons per second (gal/s)Acre-feet per minute (ac-ft/min)
1 gal/s0.000184133 ac-ft/min
2 gal/s0.000368266 ac-ft/min
5 gal/s0.000920665 ac-ft/min
10 gal/s0.00184133 ac-ft/min
25 gal/s0.00460332 ac-ft/min
50 gal/s0.00920665 ac-ft/min
100 gal/s0.0184133 ac-ft/min

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