Convert US gallons per minute to Acre-feet per hour
Convert US gallons per minute (gpm) to Acre-feet per hour (ac-ft/h) instantly and accurately.
Conversion Formula
ac-ft/h = gpm × 0.0001841329966
About US gallons per minute
The US gallon per minute (gpm) equals 3.785411784×10⁻³/60 ≈ 6.309×10⁻⁵ m³/s, the dominant volumetric flow unit in US plumbing, HVAC, and water-treatment industries. EPA showerhead standards are set at 2.5 gpm; residential water meters size at 3/4"-1" for 5-20 gpm; municipal water-distribution design uses hundreds to thousands of gpm. 1 gpm ≈ 6.309×10⁻⁵ m³/s = 3.785 L/min.
About Acre-feet per hour
The acre-foot per hour (ac-ft/h) equals 1233.48183754752/3600 ≈ 0.34263 m³/s, standard for sizing irrigation district delivery canals, reservoir outflow scheduling, and aquifer recharge basin calculations in the western US. The US Bureau of Reclamation uses ac-ft/h for canal operational planning; a 1 000-acre farm irrigating with 0.5 in/h rain-equivalent receives ≈41 ac-ft/h. 1 ac-ft/h ≈ 0.34263 m³/s.
Quick Reference Table
| US gallons per minute (gpm) | Acre-feet per hour (ac-ft/h) |
|---|---|
| 1 gpm | 0.000184133 ac-ft/h |
| 2 gpm | 0.000368266 ac-ft/h |
| 5 gpm | 0.000920665 ac-ft/h |
| 10 gpm | 0.00184133 ac-ft/h |
| 25 gpm | 0.00460332 ac-ft/h |
| 50 gpm | 0.00920665 ac-ft/h |
| 100 gpm | 0.0184133 ac-ft/h |