LPM to LPS Calculator
Convert Liters per Minute (LPM) to Liters per Second (LPS) instantly. This expert-verified flow rate tool is essential for pump sizing, piping systems, and hydraulic flow calculations with high precision.
⚡ Free Tool · No Signup · Instant Results
LPM to LPS Calculator
Calculations are standard physical conversions. Real-world pump configurations must account for pipe friction, elevation, and fluid properties.
💡 Note: 1 LPS equals 60 LPM. Dividing liters per minute by 60 converts the flow rate into liters per second according to SI units.
How to Use LPM to LPS Calculator
Converting flow rates using this free online calculator is fast and straightforward. Understanding flow rates is vital when designing fluid systems or selecting pumps. Follow these steps to perform the conversion:
- Step 1: Enter the flow rate in liters per minute (LPM) in the input box.
- Step 2: Click the Calculate Flow button.
- Step 3: The tool will automatically divide the value by 60.
- Step 4: Read the converted result instantly in liters per second (LPS) on the output card.
This conversion tool is particularly helpful in the following engineering scenarios:
- Water Pumps: Comparing the capacity of a drainage pump rated in liters per minute to a municipal sewer flow requirement specified in liters per second.
- Pipe Systems: Calculating flow velocities in commercial building riser pipes to prevent water hammer and excessive friction losses.
- Hydraulic Equipment: Verifying flow supplies for high-pressure piston pumps and actuators in industrial machinery.
How to Calculate LPM to LPS
To convert a flow rate from liters per minute (LPM) to liters per second (LPS), you divide the flow rate by 60. This is because there are 60 seconds in one minute. The mathematical formula for converting LPM to LPS is simple and easy to read:
Where:
- LPS: Liters per second, which represents the volumetric flow rate in SI units.
- LPM: Liters per minute, a common metric measurement for pump output and pipe flow.
Verified Calculation Example
Here is a step-by-step example showing how to convert a standard flow rate of 120 LPM to LPS:
- Given Flow Rate: 120 LPM
- Calculation:
LPS = 120 ÷ 60
- Result: LPS = 2
- Final Answer: 120 LPM is equivalent to 2 LPS.
Real-Life Applications
This flow rate conversion is widely used across various industries, including:
- Pump Sizing: Selecting commercial water pumps whose flow performance curves might be rated in liters per second (LPS) while system demands are defined in liters per minute (LPM).
- Water Treatment Systems: Calibrating chemical dosing pumps and measuring treatment plant throughput where chemical rates require sub-second precision.
- Irrigation Systems: Sizing pipelines and sprinkler outputs for agricultural fields to ensure correct water distribution volume.
- Fluid Flow Analysis: Performing hydraulic modeling and fluid mechanics calculations in piping systems where standard SI units (m³/s or L/s) are required.
LPM to LPS Chart
This reference chart displays conversions from liters per minute (LPM) to liters per second (LPS). All values are calculated using the standard conversion factor of 60 and are rounded to four decimal places for precise field reference.
| Flow Rate (LPM) | Liters per Second (LPS) |
|---|---|
| 1 LPM | 0.0167 LPS |
| 5 LPM | 0.0833 LPS |
| 10 LPM | 0.1667 LPS |
| 20 LPM | 0.3333 LPS |
| 30 LPM | 0.5000 LPS |
| 40 LPM | 0.6667 LPS |
| 50 LPM | 0.8333 LPS |
| 60 LPM | 1.0000 LPS |
| 100 LPM | 1.6667 LPS |
| 120 LPM | 2.0000 LPS |
| 180 LPM | 3.0000 LPS |
| 240 LPM | 4.0000 LPS |
| 300 LPM | 5.0000 LPS |
| 600 LPM | 10.0000 LPS |
Note: Values are rounded to four decimal places.
LPM to LPS Frequently Asked Questions
To convert Liters per Minute (LPM) to Liters per Second (LPS), divide the flow rate value in LPM by 60. This conversion is based on the temporal relationship between a minute and a second, where one minute contains exactly 60 seconds. For example, a flow rate of 300 LPM divided by 60 equals 5 LPS.
60 LPM is equal to exactly 1 LPS. To find this, apply the conversion formula by dividing 60 liters per minute by the conversion factor of 60 seconds. This results in exactly 1.0000 liter per second. This is a common baseline conversion used to quickly estimate capacities for fluid transport and water utility pumps.
The mathematical formula to convert liters per minute to liters per second is: LPS = LPM ÷ 60. In this formula, LPS represents the volumetric flow rate in liters per second, and LPM represents the flow rate in liters per minute. Because a minute is 60 times longer than a second, the flow per second is one-sixtieth of the flow per minute.
Liters per second (LPS) is preferred in scientific research, engineering designs, and municipal hydraulics because it represents a smaller time increment, which is crucial for real-time monitoring and fluid velocity calculations. Liters per minute (LPM) is more common in commercial pump marketing and simple plumbing specifications.
Liters per second (LPS) is a metric unit derived from SI units. The standard SI unit for volumetric flow rate is cubic meters per second (m³/s). Since one liter is equal to 0.001 cubic meters, one liter per second is equal to 0.001 m³/s. Although the liter itself is not a primary SI unit, it is accepted for use with the SI system.