Volumetric Flow Rate Converter
Convert between liters per second, gallons per minute, cubic meters per hour, CFM, and more instantly.
About Volumetric Flow Rate Converter
Our Volumetric Flow Rate Converter is a professional tool that allows you to convert flow rate measurements between different units seamlessly. Whether you're designing plumbing systems, sizing HVAC equipment, or working on industrial fluid processes, this tool provides accurate conversions across 10 commonly used flow rate units.
The tool supports conversions between metric units (Liters per Second, Liters per Minute, Liters per Hour, Cubic Meters per Second, Cubic Meters per Hour) and US customary units (Gallons per Minute, Cubic Feet per Minute, Gallons per Hour, Barrels per Day). All conversions are calculated with high precision and displayed instantly as you type or change units.
Convert From
How to Use
Enter the Flow Rate Value
Type the numerical value of the flow rate you want to convert in the "Flow Rate Value" field. You can enter whole numbers or decimals. The input accepts any valid positive number.
Select the Original Unit
Choose the unit of your input value from the "From Unit" dropdown. Options include Liters per Second, Gallons per Minute, Cubic Meters per Hour, CFM, and more.
Select the Target Unit
Choose the unit you want to convert to from the "To Unit" dropdown. You can also use the "Swap Units" button to quickly switch between the source and target units.
View Results
Click "Convert" to see the result. The tool will display the converted value, the formula used, and all possible conversions from your original value to every supported unit.
Common Conversions
Quick links to frequently used flow rate conversions. Click any link to see the instant result.
Frequently Asked Questions
How do I convert liters per second to gallons per minute?
Multiply the L/s value by 15.8503 to get GPM. For example, 2 L/s = 31.7 GPM. This conversion is commonly used in plumbing, HVAC, and industrial applications where metric and US customary units need to be compared.
What is the difference between L/s and L/min?
Both measure volumetric flow rate in liters, but over different time periods. 1 L/s equals 60 L/min. L/s is typically used for larger industrial flows, while L/min is more common for smaller flows like household fixtures and medical equipment.
What is CFM used for?
CFM (Cubic Feet per Minute) is the standard unit for air flow in HVAC, ventilation, and pneumatic systems. Room air conditioners, exhaust fans, and compressed air systems are all rated in CFM. A typical bathroom exhaust fan might be rated at 50-100 CFM.
How do I convert cubic meters per hour to liters per second?
Divide the m³/h value by 3.6 to get L/s. For example, 10 m³/h = 2.78 L/s. Conversely, multiply L/s by 3.6 to get m³/h. This relationship is derived from 1 m³ = 1000 L and 1 hour = 3600 seconds.
What is the relationship between volume flow and mass flow?
Volume flow rate measures the volume of fluid passing per unit time, while mass flow rate measures the mass. They are related by fluid density: mass flow = volume flow × density. For water at standard conditions, 1 L/s approximately equals 1 kg/s.
What are barrels per day used for?
Barrels per day (bbl/day) is commonly used in the oil and petroleum industry to measure production rates, pipeline throughput, and refinery capacity. One barrel equals approximately 159 liters or 42 US gallons.
Is this tool free to use?
Absolutely! Our Volumetric Flow Rate Converter is completely free to use, with no registration required. We believe in providing high-quality, accessible tools for engineers, students, technicians, and anyone who needs to perform flow rate conversions quickly and accurately.