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CFM to LPM Converter

1 cubic foot equals 28.3168 liters. Since both units are per minute, the conversion factor is constant. This is a simple linear relationship widely used when working with...

Formula

Source: NIST | Last reviewed: June 7, 2026

Examples

1 CFM

= 28.32 L/min

1 CFM = 28.32 LPM

100 CFM

= 2832 L/min

Quick Reference Table

CFM to LPM (1–500 CFM)
CFMLPM
128.32
10283.2
501416
1002832
50014158

Where is this used?

Converting US HVAC airflow measurements (CFM) to metric units (L/min) for equipment selection, ventilation compliance, and laboratory exhaust specifications.

Frequently Asked Questions

How do I convert LPM to CFM?

Divide LPM by 28.3168. For quick estimates, multiply LPM by 0.0353 to get CFM.

What is the difference between LPM and SLPM?

LPM is the actual flow rate in liters per minute at site conditions. SLPM (Standard LPM) normalizes to standard temperature and pressure, similar to the SCFM/ACFM distinction.

Can I use this for liquid flow too?

The unit conversion is the same (1 ft³ = 28.317 L), but liquid flow in CFM is rare. GPM is the standard for liquids. This converter is intended for gas flow.

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.

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