Liters/minute (L/min)
Definition: Liters per minute (symbol: L/min or LPM) is a metric unit of volumetric flow rate that measures the volume of a fluid (one liter) passing a specific point in one minute.
History/origin: This unit is a direct combination of the metric unit for volume (the liter) and the universal unit of time (the minute). It was adopted for practical everyday flow measurements.
Current use: LPM is widely used to measure water flow in household plumbing (faucets, showers), medical oxygen delivery systems, and laboratory liquid pumps.
Cubic meters/hour (m³/h)
Definition: Cubic meters per hour (symbol: m³/h) is a metric unit of volumetric flow rate equivalent to the volume of a cube with one-meter sides flowing every hour.
History/origin: As industries grew, measuring large volumes of water or gas in liters per second resulted in numbers that were too large to track easily. m³/h was adopted to simplify large-scale measurements.
Current use: It is the standard unit for large-scale industrial fluid dynamics, municipal water supply networks, natural gas distribution, and major HVAC chiller systems.
Liters/minute (L/min) to Cubic meters/hour (m³/h) Conversion Table
| Liters/minute (L/min) [lpm] | Cubic meters/hour (m³/h) [m3h] |
|---|---|
| 0.01 lpm | 0.0006 m3h |
| 0.1 lpm | 0.006 m3h |
| 1 lpm | 0.06 m3h |
| 2 lpm | 0.12 m3h |
| 3 lpm | 0.18 m3h |
| 5 lpm | 0.3 m3h |
| 10 lpm | 0.6 m3h |
| 20 lpm | 1.2 m3h |
| 50 lpm | 2.99999999 m3h |
| 100 lpm | 5.99999999 m3h |
| 1000 lpm | 59.99999988 m3h |
How to Convert Liters/minute (L/min) to Cubic meters/hour (m³/h)
1 lpm = 0.06 m3h
1 m3h = 16.6666667 lpm
Example: convert 15 lpm to m3h:
15 lpm = 15 × 0.06 m3h = 0.9 m3h
Did You Know?
- A standard modern showerhead uses about 9.5 Liters per minute (L/min) to save water, whereas older ones used up to 20 L/min!
- Cubic meters per hour (m³/h) is widely used in large-scale municipal water supplies and natural gas pipelines to measure massive distribution networks.