Convert US gallons per minute to Litres per second
Convert US gallons per minute (gpm) to Litres per second (L/s) instantly and accurately.
Conversion Formula
L/s = gpm × 0.0630901964
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 Litres per second
The litre per second (L/s) equals 10⁻³ m³/s, the standard unit for municipal water-supply engineering, fire-fighting flows, and HVAC system air handling. A fire hydrant delivers 15-30 L/s; a household mains water connection is typically 0.1-0.5 L/s; a large building HVAC chilled-water loop circulates 50-200 L/s. 1 L/s = 10⁻³ m³/s = 3.6 m³/h ≈ 15.85 US gal/min.
Quick Reference Table
| US gallons per minute (gpm) | Litres per second (L/s) |
|---|---|
| 1 gpm | 0.0630902 L/s |
| 2 gpm | 0.12618 L/s |
| 5 gpm | 0.315451 L/s |
| 10 gpm | 0.630902 L/s |
| 25 gpm | 1.57725 L/s |
| 50 gpm | 3.15451 L/s |
| 100 gpm | 6.30902 L/s |