Convert Acre-feet per minute to US gallons per hour
Convert Acre-feet per minute (ac-ft/min) to US gallons per hour (gph) instantly and accurately.
Conversion Formula
gph = ac-ft/min × 19551085.71
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.
About US gallons per hour
The US gallon per hour (gph) equals 3.785411784×10⁻³/3600 ≈ 1.051×10⁻⁶ m³/s, common in oil-burner nozzle ratings, water-softener regeneration, and RV/marine-plumbing specifications. Residential oil-burner nozzles are rated in gph (e.g., 0.75 gph, 1.00 gph); a small boat bilge pump might handle 200-500 gph. 1 US gph ≈ 1.052×10⁻⁶ m³/s ≈ 3.785 L/h.
Quick Reference Table
| Acre-feet per minute (ac-ft/min) | US gallons per hour (gph) |
|---|---|
| 1 ac-ft/min | 19551100 gph |
| 2 ac-ft/min | 39102200 gph |
| 5 ac-ft/min | 97755400 gph |
| 10 ac-ft/min | 195511000 gph |
| 25 ac-ft/min | 488777000 gph |
| 50 ac-ft/min | 977554000 gph |
| 100 ac-ft/min | 1.955 × 109 gph |