CFM to L/s Converter
1 CFM equals 0.471947 liters per second. This conversion is commonly used in laboratory ventilation design, fume hood specifications, and international HVAC standards where airflow...
Formula
Source: NIST | Last reviewed: June 7, 2026
Examples
1 CFM
= 0.472 L/s
1 CFM = 0.472 L/s
100 CFM
= 47.19 L/s
Where is this used?
European HVAC standards (EN, ISO) typically use L/s for duct and diffuser sizing.
Frequently Asked Questions
How do I convert L/s to CFM?
Divide L/s by 0.471947. For quick estimates, multiply L/s by 2.119 to get CFM.
What is the relationship between L/s and m³/h?
1 L/s = 3.6 m³/h. To convert L/s to m³/h, multiply by 3.6. To convert m³/h to L/s, divide by 3.6.
Is this used for liquid flows too?
L/s is occasionally used for liquid flows, but GPM or m³/h are far more common for liquids. This converter is primarily designed for gas flow and ventilation.
Reviewed for accuracy
· Last reviewed: June 7, 2026
All calculations are for reference only. Always verify with manufacturer data and a qualified engineer for critical applications. Learn about our editorial process.