Convert Cubic feet per minute to Liters per second
Instantly convert Cubic feet per minute (CFM) to Liters per second (L/s) with our free online calculator.
Formula: CFM to L/s — multiply by 0.471947
Reference Table
| Cubic feet per minute (CFM) | Liters per second (L/s) |
|---|---|
| 1 | 0.471947 |
| 5 | 2.35973 |
| 10 | 4.71947 |
| 25 | 11.7987 |
| 50 | 23.5973 |
| 100 | 47.1947 |
How to Convert Cubic feet per minute to Liters per second
Formula
To convert Cubic feet per minute (CFM) to Liters per second (L/s): multiply by 0.471947
Step-by-Step
- Start with your value in Cubic feet per minute (CFM).
- Multiply by 0.471947 to perform the conversion.
- The result is your value expressed in Liters per second (L/s).
Conversion Factor
1 CFM = 0.471947 L/s
Reverse Factor
1 L/s = 2.11888 CFM
Worked Example
Convert 25 Cubic feet per minute to Liters per second: 25 CFM = 11.7987 L/s
About Cubic foot per minute (CFM)
An imperial flow-rate unit dominant in US HVAC, dust collection, and compressed-air system engineering. CFM is the working unit for air-handler capacity (ASHRAE 62.1, AMCA 210), residential duct sizing (Manual D ACCA design), bathroom and kitchen exhaust-fan ratings (the Home Ventilation Institute Certified Performance Ratings list each fan model's HVI-tested CFM), compressed-air-system sizing (compressor manufacturer ratings under ISO 1217 are dual-quoted as SCFM and CFM displacement), and dust-collection ducting per OSHA 29 CFR 1910 and NFPA 654. Reference values: a residential bath fan is 50-110 CFM (HVI minimum 50 CFM for code), a central-AC air handler for a 2,000 ft² US home delivers 800-1,200 CFM (1 CFM per ft² is a typical Manual J residential figure), a large industrial centrifugal compressor 5,000-20,000 SCFM. Convert CFM to m³/hr by multiplying by 1.699; to L/s by multiplying by 0.4719; to m³/s by multiplying by 4.7195 × 10⁻⁴.
About Liter per second (L/s)
A metric flow-rate unit equal to exactly 0.001 m³/s. L/s is the typical unit for plumbing fixtures in metric-using countries, the SI-aligned sizing unit for water-supply mains (per ISO 4064 water meter specs and EN 805 European water-supply standard), fire-pump capacities (often dual-listed in L/s and m³/hr on European fire-rated pumps), and medium-flow industrial processes. Reference values: a typical kitchen faucet flows 0.1-0.15 L/s, a metric shower head 0.13-0.20 L/s, a 50 mm domestic-water service ~3-5 L/s, a 100 mm fire-hydrant supply main 30-60 L/s. Converting L/s to GPM (US gallons per minute) is multiply by 15.85 — one of the most-needed unit conversions for buyers of imported European pump/plumbing equipment specifying performance in metric units. 1 L/s = 60 L/min = 3.6 m³/hr.
Quick Facts
- 1 Cubic foot per minute equals 0.471947 Liters per second
- 1 Liter per second equals 2.11888 Cubic feet per minute
- Cubic foot per minute is a unit of volumetric flow rate
- Liter per second is a unit of volumetric flow rate
- This conversion is commonly used in plumbing, HVAC systems, and chemical process engineering
- The Cubic foot per minute belongs to the imperial system
- The Liter per second belongs to the metric system
Common Cubic foot per minute to Liter per second Conversions
| Cubic feet per minute (CFM) | Liters per second (L/s) |
|---|---|
| 0.01 | 0.00471947 |
| 0.1 | 0.0471947 |
| 0.25 | 0.117987 |
| 0.5 | 0.235974 |
| 1 | 0.471947 |
| 2 | 0.943894 |
| 3 | 1.41584 |
| 5 | 2.35973 |
| 10 | 4.71947 |
| 15 | 7.0792 |
| 20 | 9.43894 |
| 25 | 11.7987 |
| 50 | 23.5973 |
| 75 | 35.396 |
| 100 | 47.1947 |
| 250 | 117.987 |
| 500 | 235.974 |
| 1000 | 471.947 |
| 5000 | 2359.74 |
| 10000 | 4719.47 |
Understanding Cubic feet per minute
The Cubic foot per minute (symbol: CFM) is a unit of volumetric flow rate. An imperial flow-rate unit dominant in US HVAC, dust collection, and compressed-air system engineering. CFM is the working unit for air-handler capacity (ASHRAE 62.1, AMCA 210), residential duct sizing (Manual D ACCA design), bathroom and kitchen exhaust-fan ratings (the Home Ventilation Institute Certified Performance Ratings list each fan model's HVI-tested CFM), compressed-air-system sizing (compressor manufacturer ratings under ISO 1217 are dual-quoted as SCFM and CFM displacement), and dust-collection ducting per OSHA 29 CFR 1910 and NFPA 654. Reference values: a residential bath fan is 50-110 CFM (HVI minimum 50 CFM for code), a central-AC air handler for a 2,000 ft² US home delivers 800-1,200 CFM (1 CFM per ft² is a typical Manual J residential figure), a large industrial centrifugal compressor 5,000-20,000 SCFM. Convert CFM to m³/hr by multiplying by 1.699; to L/s by multiplying by 0.4719; to m³/s by multiplying by 4.7195 × 10⁻⁴.
It belongs to the imperial measurement system.
Cubic feet per minute are commonly used in plumbing, HVAC systems, and chemical process engineering.
Understanding Liters per second
The Liter per second (symbol: L/s) is a unit of volumetric flow rate. A metric flow-rate unit equal to exactly 0.001 m³/s. L/s is the typical unit for plumbing fixtures in metric-using countries, the SI-aligned sizing unit for water-supply mains (per ISO 4064 water meter specs and EN 805 European water-supply standard), fire-pump capacities (often dual-listed in L/s and m³/hr on European fire-rated pumps), and medium-flow industrial processes. Reference values: a typical kitchen faucet flows 0.1-0.15 L/s, a metric shower head 0.13-0.20 L/s, a 50 mm domestic-water service ~3-5 L/s, a 100 mm fire-hydrant supply main 30-60 L/s. Converting L/s to GPM (US gallons per minute) is multiply by 15.85 — one of the most-needed unit conversions for buyers of imported European pump/plumbing equipment specifying performance in metric units. 1 L/s = 60 L/min = 3.6 m³/hr.
It belongs to the metric measurement system.
Liters per second are commonly used in plumbing, HVAC systems, and chemical process engineering.
Why Convert Cubic feet per minute to Liters per second?
Converting between Cubic feet per minute and Liters per second is a frequent requirement for engineers, scientists, and students working with volumetric flow rate values. Different industries and regions favour different unit systems, so having a dependable conversion tool saves time and prevents errors in technical calculations. Whether you are verifying a specification sheet, cross-checking simulation results, or preparing a report for an international audience, accurate volumetric flow rate conversion is essential.
Frequently Asked Questions
How do I convert Cubic feet per minute to Liters per second?
An imperial flow-rate unit dominant in US HVAC, dust collection, and compressed-air system engineering. To convert Cubic feet per minute to Liters per second, multiply by 0.471947. For example, 25 CFM equals 11.7987 L/s.
How many Liters per second are in 1 Cubic foot per minute?
There are 0.471947 Liters per second in 1 Cubic foot per minute.
How many Cubic feet per minute are in 1 Liter per second?
There are 2.11888 Cubic feet per minute in 1 Liter per second.
What is the formula for Cubic foot per minute to Liter per second conversion?
The formula is: multiply by 0.471947. This means 1 CFM = 0.471947 L/s.
Is a Cubic foot per minute bigger than a Liter per second?
Yes. One Cubic foot per minute is larger than one Liter per second because 1 CFM equals 0.471947 L/s, which is less than 1.
When do you need to convert between Cubic feet per minute and Liters per second?
A metric flow-rate unit equal to exactly 0. Cubic foot per minute and Liter per second are both volumetric flow units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.