Choose a direct CFM/L/min conversion or an actual-to-standard or standard-to-actual task. Corrected tasks also require actual pressure and temperature and a stated reference.

Direct conversion keeps the same gas conditions. Corrected modes assume an ideal dry gas and a stated reference.

Rounding

CFM To LPM Formula

LPM = CFM ร— 28.316846592

Variables:

  • LPM is volumetric flow in litres per minute
  • CFM is the cubic feet per minute (CFM)

For a direct conversion at the same gas conditions, multiply CFM by exactly 28.316846592 to obtain litres per minute.

CFM to LPM Conversion Table (1 CFM = 28.3168 LPM)
CFM LPM
0.514.158
128.317
256.634
384.951
5141.584
7.5212.376
10283.168
12339.802
15424.753
20566.337
25707.921
30849.505
401132.674
501415.842
601699.011
752123.763
1002831.685
1504247.527
2005663.369
3008495.054
Rounded to 3 decimals from the exact volume conversion: 1 CFM = 28.316846592 LPM at the same conditions (1 LPM โ‰ˆ 0.035315 CFM).

How to Convert CFM To LPM?

The following steps outline how to convert the CFM To LPM.


  1. First, determine the cubic feet per minute (CFM). 
  2. Next, use LPM = CFM ร— 28.316846592 for the same pressure and temperature.
  3. Finally, calculate the CFM To LPM.
  4. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

cubic feet per minute (CFM) = 323

LPM = 323 ร— 28.316846592 = 9146.341449216 L/min, or 9146.34 L/min rounded to two decimals.

FAQs

What is CFM and why is it important?

CFM stands for Cubic Feet per Minute and is a measure of air flow volume. It’s important in various applications such as HVAC, air compressors, and ventilation systems because it helps in determining the capacity and efficiency of the system.

How does the conversion from CFM to LPM help in practical scenarios?

Converting CFM (Cubic Feet per Minute) to LPM (Liters per Minute) helps in understanding air flow in systems that use metric measurements. This conversion is crucial for engineers, technicians, and professionals working internationally or with equipment manufactured in countries using the metric system.

Can the CFM to LPM conversion formula be used for all types of gases?

Direct conversion between cubic feet and litres is independent of gas type when both volume flow rates refer to the same pressure and temperature. Converting between different actual and reference conditions requires a separate gas model; this calculator uses an ideal dry-gas approximation.