🚰 Volumetric Flow Rate Converter
Convert volumetric flow-rate units, litres per second and minute, cubic metres per hour, US gallons per minute (GPM), cubic feet per minute (CFM) and per second.
1 m³/s = 3600 m³/h
1 cubic metres per second = 3600 cubic metres per hour
1 × 3600 = 3600
1 m³/s equals 3600 m³/h, so multiplying by 3600 converts the value. The result describes the exact same quantity, only the measuring stick changes.
Popular volumetric flow rate conversions
- Litres per minute to US gallons per minute (L/min → GPM)
- US gallons per minute to Litres per minute (GPM → L/min)
- Cubic metres per hour to Litres per minute (m³/h → L/min)
- Litres per second to US gallons per minute (L/s → GPM)
- Cubic feet per minute to Litres per second (CFM → L/s)
- Cubic metres per hour to US gallons per minute (m³/h → GPM)
All volumetric flow rate units
| Unit | Symbol | Definition |
|---|---|---|
| Cubic metre per second | m³/s | The SI unit of volumetric flow, a cubic metre passing a point each second. A large unit: rivers and industrial flows. |
| Cubic metre per hour | m³/h | A cubic metre per hour is 1/3600 m³/s. Pumps, HVAC and water systems are often rated in m³/h. |
| Litre per second | L/s | One litre per second is 0.001 m³/s. A common unit for pumps and plumbing flows. |
| Litre per minute | L/min | A litre per minute is 1/60 L/s. Taps, showers and small pumps are rated in L/min. |
| US gallon per minute | GPM | US gallons per minute, the standard US pump and plumbing rate. One GPM is about 3.785 L/min. |
| Cubic foot per minute | CFM | Cubic feet per minute, the US airflow unit for fans, HVAC and compressors. One CFM is about 1.699 m³/h or 0.472 L/s. |
| Cubic foot per second | ft³/s | Cubic feet per second ("cusec"), used for river and channel discharge. One ft³/s is about 28.32 L/s. |
Frequently asked questions
How do I convert volumetric flow rate units?
Choose your two units in the converter above and type a value, the result updates instantly, entirely in your browser. All 7 volumetric flow rate units on this page are interchangeable, so you can convert in either direction.
Which volumetric flow rate units can I convert here?
This converter supports 7 volumetric flow rate units: Cubic metre per second (m³/s), Cubic metre per hour (m³/h), Litre per second (L/s), Litre per minute (L/min) and 3 more. Pick any two to convert between them.
What is the most common volumetric flow rate conversion?
One of the most-used volumetric flow rate conversions is Litres per minute to US gallons per minute (L/min → GPM). Every volumetric flow rate pair we support is linked below, each with its own formula and table.
Is this Volumetric Flow Rate Converter free and private?
Yes. It is free with no sign-up, uses the exact internationally defined conversion factors, and computes every result locally in your browser, nothing you type is uploaded, and the page keeps working offline.