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Convert flow rates between cubic meters per hour (m³/h) and liters per minute (L/min) instantly with our free online calculator.
L/min = m³/h × 16.6667
m³/h = L/min ÷ 16.6667
| Cubic Meters per Hour (m³/h) | Liters per Minute (L/min) |
|---|---|
| 0.5 | 8.3333 |
| 1 | 16.6667 |
| 2 | 33.3334 |
| 3 | 50.0001 |
| 5 | 83.3335 |
| 10 | 166.6670 |
| 15 | 250.0005 |
| 20 | 333.3340 |
| 25 | 416.6675 |
| 30 | 500.0010 |
| 40 | 666.6680 |
| 50 | 833.3350 |
| 75 | 1250.0025 |
| 100 | 1666.6700 |
Cubic meters per hour (m³/h) is a metric unit of volumetric flow rate commonly used in industrial and commercial applications. It measures the volume of fluid in cubic meters that flows through a system in one hour. This unit is particularly prevalent in Europe and Asia for specifying pump capacities, ventilation rates, and large-scale fluid handling systems. One cubic meter equals 1,000 liters, so m³/h is especially useful when dealing with high-flow applications like water treatment plants, HVAC systems in large buildings, and industrial process equipment.
Liters per minute (L/min) is a metric flow rate unit that measures how many liters of fluid pass through a point in one minute. It's widely used in applications requiring more precise flow measurement than m³/h, such as residential plumbing, small pumps, medical equipment, and laboratory apparatus. L/min provides a practical scale for everyday applications where m³/h might yield inconveniently small decimal numbers. For example, a typical showerhead delivers 8-12 L/min, while an aquarium filter might circulate 200-600 L/min depending on tank size.
Converting m³/h to L/min involves two steps: converting cubic meters to liters and hours to minutes:
Example:
Convert 6 m³/h to L/min:
6 × 16.6667 = 100 L/min
1 cubic meter per hour equals approximately 16.6667 liters per minute.
m³/h is preferred for large-flow applications because it provides whole numbers instead of thousands of liters. For example, a large pump rated at 3,000 L/min is more concisely expressed as 180 m³/h.
Use a flow meter installed in the discharge line, or measure the time required to fill a container of known volume. Always account for system head pressure and friction losses.
The conversion factor itself is exact, but actual flow measurements can be affected by temperature (fluid density changes), pressure variations, and measurement instrument accuracy.
Yes, but gas flows are typically specified at standard temperature and pressure (STP) conditions. Make sure to compare flows measured under the same conditions.
Residential HVAC systems typically move 150-450 m³/h (2,500-7,500 L/min), while commercial systems can exceed 10,000 m³/h (166,667 L/min) for large buildings.