Direct conversion

liters per second to CFM Converter

Convert litres per second to cubic feet per minute when comparing metric ventilation requirements with CFM-rated fans and HVAC equipment.

liters per second to CFM Converter

Instant results

From value From unit Result To unit

1 liter per second [L/s] = 2.11888 cubic foot per minute [ft3/min]

Reverse conversion: cubic foot per minute to liter per second All Flow Rate units Conversion chart Worked examples HVAC Converters

Formula Examples Table FAQ

Conversion Formula

1 liter per second [L/s] = 2.11888 cubic foot per minute [ft3/min]

Multiply L/s by approximately 2.11888 to get CFM.

Example: 1 liter per second [L/s] equals 2.11888 cubic foot per minute [ft3/min].

Examples

1 liter per second [L/s] = 2.11888 cubic foot per minute [ft3/min]

2 liter per second [L/s] = 4.23776 cubic foot per minute [ft3/min]

5 liter per second [L/s] = 10.5944 cubic foot per minute [ft3/min]

10 liter per second [L/s] = 21.1888 cubic foot per minute [ft3/min]

20 liter per second [L/s] = 42.3776 cubic foot per minute [ft3/min]

25 liter per second [L/s] = 52.972 cubic foot per minute [ft3/min]

Practical Uses for liters per second to CFM

Ventilation requirementsFan capacityAir handling unitsDiffusers and grillesHVAC specificationsEquipment comparisons

Sources and Accuracy

Flow rate conversions use cubic meter per second as the reference unit and include common pump, plumbing, HVAC, and process-flow units.

Displayed results are rounded for readability. The calculator keeps enough precision for everyday use and switches to scientific notation for very large or very small values. Last reviewed: 2026-08-14.

About These Units

liter per second [L/s]

Definition

The liter per second (L/s) is a flow rate unit used to express measurements in this converter.

History

This unit is included because it appears in practical measurement systems, technical references, product specifications, or everyday conversion needs.

Current use

Use liter per second when comparing flow rate values, checking specifications, converting between systems, or preparing quick estimates.

cubic foot per minute [ft3/min]

Definition

The cubic foot per minute (ft3/min) is a flow rate unit used to express measurements in this converter.

History

This unit is included because it appears in practical measurement systems, technical references, product specifications, or everyday conversion needs.

Current use

Use cubic foot per minute when comparing flow rate values, checking specifications, converting between systems, or preparing quick estimates.

How to Convert

Enter the value in the “From value” field.
Confirm the source unit is liter per second [L/s].
Confirm the target unit is cubic foot per minute [ft3/min].
Read the instant result and formula.

Practical Conversion Tips

Confirm the airflow basis before comparing equipment.
Use project design criteria for final ventilation sizing.
Keep more digits for intermediate calculations.

liters per second to CFM Conversion Chart

All Flow Rate units →

liter per second [L/s]	cubic foot per minute [ft3/min]
1	2.11888
2	4.23776
5	10.5944
10	21.1888
20	42.3776
25	52.972
50	105.944
100	211.888
1000	2118.880003

Frequently Asked Questions

How do I convert liter per second to cubic foot per minute?

Use this formula: 1 liter per second [L/s] = 2.11888 cubic foot per minute [ft3/min] Enter your value in the calculator and the result updates instantly.

How many cubic foot per minute are in 1 liter per second?

1 liter per second [L/s] equals 2.11888 cubic foot per minute [ft3/min].

Can I reverse this conversion?

Yes. Use the swap button in the calculator or open the related reverse conversion link when it is listed on this page.

How many CFM is 100 L/s?

100 L/s is approximately 211.888 CFM.

What is the L/s to CFM formula?

Multiply litres per second by approximately 2.11888.

Convert liter per second to Other Units

Convert cubic foot per minute to Other Units

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