US Gallon per Minute to Liter per Minute Converter
Converts us gallon per minute to liter per minute (gpm to L/min) and back. The conversion factor is shown below every result.
How to Convert US Gallon per Minute to Liter per Minute
What Is an US Gallon per Minute?
US gallons per minute (gpm) is a US customary unit of volumetric flow rate.
What Is a Liter per Minute?
The metric unit for volumetric flow rate is liter per minute (L/min).
Common US Gallon per Minute to Liter per Minute Reference Points
Real-world reference values for quick sanity checks.
| Item | US Gallon per Minute (gpm) | Liter per Minute (approx.) |
|---|---|---|
| A typical showerhead flow (approx.) | 2 gpm | 7.57 L/min |
| A sump pump flow (approx.) | 40 gpm | 151.42 L/min |
| Reference values are illustrative approximations for common items, not measured specifications. | ||
US Gallon per Minute to Liter per Minute Conversion Table
| US Gallon per Minute (gpm) | Liter per Minute (L/min) |
|---|---|
| 1 gpm | 3.785412 L/min |
| 2 gpm | 7.570824 L/min |
| 5 gpm | 18.927059 L/min |
| 10 gpm | 37.854118 L/min |
| 20 gpm | 75.708236 L/min |
| 40 gpm | 151.416471 L/min |
| Source: NIST SP 811 (1 US gallon = 3.785411784 L exactly) | |
Frequently Asked Questions
How do I convert US gallons per minute to liters per minute?
Multiply the gpm value by 3.785411784. For example, 5 gpm × 3.785411784 = 18.927 L/min.
What's a typical residential water flow rate?
US kitchen faucets are commonly rated around 1.5 to 2.2 gpm, and showerheads around 1.8 to 2.5 gpm, though exact figures depend on local plumbing codes and fixture design.
Is 3.785411784 exact?
Yes, it's the same exact US gallon-to-liter factor used throughout this site's Volume converters.
Related Flow Rate Converters
A good measuring tool marked in both gpm and L/min removes the guesswork at the point of use.