Convert US gallons per minute to Acre-feet per second
Convert US gallons per minute (gpm) to Acre-feet per second (ac-ft/s) instantly and accurately.
Conversion Formula
ac-ft/s = gpm × 5.114805462e-8
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 second
The acre-foot per second (ac-ft/s) equals 1233.48183754752 m³/s, an enormous unit representing the flow that would fill a football-field-sized area to 1 ft depth every second. It appears in descriptions of exceptionally large dam-break flood waves and major river-system extreme events. The 1976 Teton Dam collapse peak outflow was estimated at ≈65 000 ft³/s ≈ 1.49 ac-ft/s. 1 ac-ft/s = 1 233.48 m³/s.
Quick Reference Table
| US gallons per minute (gpm) | Acre-feet per second (ac-ft/s) |
|---|---|
| 1 gpm | 5.115 × 10-8 ac-ft/s |
| 2 gpm | 1.023 × 10-7 ac-ft/s |
| 5 gpm | 2.557 × 10-7 ac-ft/s |
| 10 gpm | 5.115 × 10-7 ac-ft/s |
| 25 gpm | 1.279 × 10-6 ac-ft/s |
| 50 gpm | 2.557 × 10-6 ac-ft/s |
| 100 gpm | 5.115 × 10-6 ac-ft/s |