Convert US gallons per minute to US gallons per second
Convert US gallons per minute (gpm) to US gallons per second (gal/s) instantly and accurately.
Conversion Formula
gal/s = gpm × 0.01666666667
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 US gallons per second
The US gallon per second (gal/s) equals 3.785411784×10⁻³ m³/s, used for very large pump discharge rates and fire-suppression deluge systems. A large centrifugal fire pump rated 1 500 US gal/min delivers exactly 25 US gal/s; industrial cooling-tower makeup lines are sized in gal/s at peak demand. 1 US gal/s = 3.785411784×10⁻³ m³/s = 60 US gal/min ≈ 227.1 L/min.
Quick Reference Table
| US gallons per minute (gpm) | US gallons per second (gal/s) |
|---|---|
| 1 gpm | 0.0166667 gal/s |
| 2 gpm | 0.0333333 gal/s |
| 5 gpm | 0.0833333 gal/s |
| 10 gpm | 0.166667 gal/s |
| 25 gpm | 0.416667 gal/s |
| 50 gpm | 0.833333 gal/s |
| 100 gpm | 1.66667 gal/s |