Liters per Second to GPM Converter
Enter the flow rate in liters per second below to convert it to gpm.
Convert Liters per Second to GPM (US)
Enter a value in liters per second (L/s) to convert to gpm (us) (GPM).
Liters per Second to US Gallons per Minute Conversion Table
Table showing various liters per second measurements converted to gpm. Click any preset value or arrow to load it into the converter.
| Liters per Second (L/s) | GPM (US) (GPM) |
|---|---|
| 1 L/s | 15.8503231 GPM |
| 2 L/s | 31.7006463 GPM |
| 2.5 L/s | 39.6258079 GPM |
| 5 L/s | 79.2516157 GPM |
| 10 L/s | 158.5032314 GPM |
| 15 L/s | 237.7548471 GPM |
| 20 L/s | 317.0064628 GPM |
| 25 L/s | 396.2580785 GPM |
| 30 L/s | 475.5096942 GPM |
| 50 L/s | 792.5161571 GPM |
How to Convert Liters per Second to GPM
To convert liters per second to gpm, multiply the flow rate by the following conversion ratio: 15.8503231 gpm/liters per second.
Since one liters per second is equal to 15.8503231 gpm, you can use this simple formula to convert:
The flow rate in gpm is equal to the flow rate in liters per second multiplied by 15.8503231.
For example, here's how to convert 5 liters per second to gpm using the formula above.
How Many GPM Are in a Liters per Second?
There are 15.8503231 gpm in a liters per second, which is why we use this value in the formula above.
Our liters per second to us gallons per minute calculator automatically converts your flow rate measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Liters per Second and gpm are both units used to measure flow rate. Keep reading to learn more about each unit.
What Is a Liters per Second?
A liters per second is a unit of flow rate equal to 60 liters per minute (L/min), the base unit for flow rate. Equal to 60 L/min. [1]
The liters per second is classified as a metric and SI-compatible unit of flow rate. Liters per Second can be abbreviated as L/s; for example, 1 liters per second can be written as 1 L/s.
When working with liters per second (L/s) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, liters per second (L/s) are widely used across standard flow rate applications within SI metric workflows, engineering documentation, and technical data sheets.
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). [2]
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.
When converting flow rate between liters per second (L/s) and gpm (GPM), keep full floating-point precision (1 L/s = 15.8503231 GPM; 1 GPM = 0.0630902 L/s) during intermediate calculations and round only the final us gallons per minute figure to match your instrument tolerance.
More Liters per Second & US Gallons per Minute Conversions
Need to calculate in the opposite direction? Use our gpm (us) to liters per second calculator to switch your starting unit immediately. You can also explore related tools such as converting gpm (us) to liters per second, converting liters per minute to gpm (us), or converting gpm (us) to liters per minute.
Convert from Liters per Second
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 — Liters per Second (L/s) to GPM (US) (GPM)
- [2]NIST OWM SpecificationNIST OWM (SI Units — Volume & Flow Capacity)·Unit Specifications: Liters per Second (L/s) & US Gallons per Minute (GPM) (GPM)
- [3]BIPM ReferenceBIPM (Coherent Volumetric Flow Units (m³/s))·Conversion Factors & Mathematical Basis (L/s to GPM)