GPM to Liters per Minute Converter
Enter the flow rate in gpm below to convert it to liters per minute.
Convert GPM (US) to Liters per Minute
Enter a value in gpm (us) (GPM) to convert to liters per minute (L/min).
US Gallons per Minute to Liters per Minute Conversion Table
Table showing various us gallons per minute measurements converted to liters per minute. Click any preset value or arrow to load it into the converter.
| GPM (US) (GPM) | Liters per Minute (L/min) |
|---|---|
| 1 GPM | 3.7854118 L/min |
| 2 GPM | 7.5708236 L/min |
| 5 GPM | 18.9270589 L/min |
| 10 GPM | 37.8541178 L/min |
| 15 GPM | 56.7811768 L/min |
| 20 GPM | 75.7082357 L/min |
| 25 GPM | 94.6352946 L/min |
| 30 GPM | 113.5623535 L/min |
| 50 GPM | 189.2705892 L/min |
| 75 GPM | 283.9058838 L/min |
How to Convert GPM to Liters per Minute
To convert gpm to liters per minute, multiply the flow rate by the following conversion ratio: 3.7854118 liters per minute/us gallons per minute.
Since one us gallons per minute is equal to 3.7854118 liters per minute, you can use this simple formula to convert:
The flow rate in liters per minute is equal to the flow rate in gpm multiplied by 3.7854118.
For example, here's how to convert 10 gpm to liters per minute using the formula above.
How Many Liters per Minute Are in a US Gallons per Minute?
There are 3.7854118 liters per minute in a us gallons per minute, which is why we use this value in the formula above.
Our us gallons per minute to liters per minute calculator automatically converts your flow rate measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
GPM and liters per minute are both units used to measure flow rate. Keep reading to learn more about each unit.
What Is a US Gallons per Minute?
A us gallons per minute is a unit of flow rate equal to 3.7854118 liters per minute (L/min), the base unit for flow rate. Standard US plumbing & pump flow rate (3.78541 L/min). [1]
The us gallons per minute is classified as a US customary unit of flow rate. GPM can be abbreviated as GPM; for example, 1 us gallons per minute can be written as 1 GPM.
When working with gpm (GPM) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, gpm (GPM) are widely used across standard flow rate applications within US customary workflows, engineering documentation, and technical data sheets.
What Is a Liters per Minute?
Volumetric flow of 1 liter per minute. It serves as a primary reference unit for measuring flow rate across scientific and practical applications. [2]
The liters per minute is classified as a metric and SI-compatible unit of flow rate. Liters per Minute can be abbreviated as L/min; for example, 1 liters per minute can be written as 1 L/min.
As the primary coherent reference unit for flow rate in this category, all other flow rate units are mathematically anchored to the liters per minute (L/min).
In practice, liters per minute (L/min) are widely used across standard flow rate applications within SI metric workflows, engineering documentation, and technical data sheets.
When converting flow rate between gpm (GPM) and liters per minute (L/min), keep full floating-point precision (1 GPM = 3.7854118 L/min; 1 L/min = 0.2641721 GPM) during intermediate calculations and round only the final liters per minute figure to match your instrument tolerance.
More US Gallons per Minute & Liters per Minute Conversions
Need to calculate in the opposite direction? Use our liters per minute to gpm (us) converter (L/min to GPM) to switch your starting unit immediately. You can also explore related tools such as converting cfh to liters per minute, converting cfm to liters per minute, or converting gpm (us) to m³/s.
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Frequently Asked Questions
References
- [1]NIST SP 811 StandardNIST SP 811 (NIST SP 811 App. B.9 (Volume Divided by Time))·Flow Rate Metrology Standard — GPM (US) (GPM) to Liters per Minute (L/min)
- [2]NIST OWM SpecificationNIST OWM (SI Units — Volume & Flow Capacity)·Unit Specifications: US Gallons per Minute (GPM) (GPM) & Liters per Minute (L/min)
- [3]BIPM ReferenceBIPM (Coherent Volumetric Flow Units (m³/s))·Conversion Factors & Mathematical Basis (GPM to L/min)