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Convert flow rates between liters per minute (L/min) and gallons per minute (GPM) instantly with our free online calculator.
GPM = L/min × 0.264172
L/min = GPM ÷ 0.264172
| Liters per Minute (L/min) | Gallons per Minute (GPM) |
|---|---|
| 1 | 0.2642 |
| 5 | 1.3209 |
| 10 | 2.6417 |
| 15 | 3.9626 |
| 20 | 5.2834 |
| 25 | 6.6043 |
| 30 | 7.9252 |
| 40 | 10.5669 |
| 50 | 13.2086 |
| 75 | 19.8129 |
| 100 | 26.4172 |
| 150 | 39.6258 |
| 200 | 52.8344 |
Liters per minute (L/min) is a metric unit of volumetric flow rate that measures the volume of fluid passing through a given surface per unit of time. It is commonly used in Europe, Asia, and other regions that use the metric system. One liter per minute equals approximately 0.264 gallons per minute. This unit is frequently used in industrial applications, HVAC systems, water treatment plants, and medical equipment to measure the flow rate of liquids and gases.
Gallons per minute (GPM) is an imperial unit of volumetric flow rate commonly used in the United States. It measures how many gallons of fluid flow past a point in one minute. GPM is the standard flow rate measurement for pumps, water systems, fuel dispensers, and plumbing fixtures in North America. One gallon per minute equals approximately 3.785 liters per minute. This measurement is essential for sizing pumps, selecting appropriate pipe diameters, and ensuring adequate water pressure in residential and commercial applications.
Converting between L/min and GPM is straightforward using the conversion factor:
Example:
Convert 50 L/min to GPM:
50 × 0.264172 = 13.2086 GPM
1 liter per minute equals approximately 0.264172 gallons per minute.
For residential applications, typical flow rates range from 6-12 GPM (23-45 L/min) for whole-house systems. Garden hoses typically deliver 5-10 GPM (19-38 L/min).
Divide the GPM value by 0.264172, or multiply by 3.78541 to get L/min.
Flow rate determines how quickly fluid can be transferred, affecting system efficiency, pipe sizing, energy consumption, and whether the system meets operational requirements.
Flow rate is influenced by pump size and type, motor power, pipe diameter and length, elevation changes, fluid viscosity, and system back pressure.
Yes, the conversion factor is the same for both liquids and gases when measuring volumetric flow rate. However, gas flows are often measured at specific temperature and pressure conditions.