Convert US gallons per hour to Acre-feet per minute
Convert US gallons per hour (gph) to Acre-feet per minute (ac-ft/min) instantly and accurately.
Conversion Formula
ac-ft/min = gph × 5.114805462e-8
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.
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 hour (gph) | Acre-feet per minute (ac-ft/min) |
|---|---|
| 1 gph | 5.115 × 10-8 ac-ft/min |
| 2 gph | 1.023 × 10-7 ac-ft/min |
| 5 gph | 2.557 × 10-7 ac-ft/min |
| 10 gph | 5.115 × 10-7 ac-ft/min |
| 25 gph | 1.279 × 10-6 ac-ft/min |
| 50 gph | 2.557 × 10-6 ac-ft/min |
| 100 gph | 5.115 × 10-6 ac-ft/min |