Convert Acre-feet per second to US gallons per minute
Convert Acre-feet per second (ac-ft/s) to US gallons per minute (gpm) instantly and accurately.
Conversion Formula
gpm = ac-ft/s × 19551085.71
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.
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.
Quick Reference Table
| Acre-feet per second (ac-ft/s) | US gallons per minute (gpm) |
|---|---|
| 1 ac-ft/s | 19551100 gpm |
| 2 ac-ft/s | 39102200 gpm |
| 5 ac-ft/s | 97755400 gpm |
| 10 ac-ft/s | 195511000 gpm |
| 25 ac-ft/s | 488777000 gpm |
| 50 ac-ft/s | 977554000 gpm |
| 100 ac-ft/s | 1.955 × 109 gpm |