Conversion Formula
$$L/min = GPM \times 3.78541$$
Multiply the value in US Gallon per Minute by 3.78541 to get Liter per Minute.
GPM to L/min Conversion Table
| US Gallon per Minute (GPM) | Liter per Minute (L/min) |
|---|---|
| 0.1 | 0.378541 |
| 0.5 | 1.89271 |
| 1 | 3.78541 |
| 2 | 7.57082 |
| 5 | 18.9271 |
| 10 | 37.8541 |
| 25 | 94.6353 |
| 50 | 189.271 |
| 100 | 378.541 |
| 250 | 946.353 |
| 500 | 1,892.71 |
| 1,000 | 3,785.41 |
GPM to L/min in Engineering
Flow rate conversions are critical for water resources, wastewater treatment, HVAC, and piping design. Civil engineers commonly work with GPM, CFS, and MGD, while mechanical engineers often need CFM for air handling systems.
US Gallon per Minute: Most common US unit for piping, pump, and plumbing flow rates. Essential for fire protection design.
Liter per Minute: Common for small-scale flows in laboratory, medical, and plumbing applications.