Flow Rate
1 CFM to L/s
1 CFM equals 0.471947 L/s. Use this page as a fixed reference and the calculator below for nearby values.
Fixed answer
Flow Rate (L/s)
0.471947 L/s
Formula
L/s = CFM x 0.471947
Nearby fixed-value pages
Use nearby answers if you are comparing a chart, product label, pressure sticker, or rounded measurement.
Where this exact conversion is used
- Useful for HVAC submittals where fan airflow is listed in CFM and metric design tables use L/s.
- Useful for duct sizing and ventilation checks when room airflow targets need to be compared across unit systems.
- Useful for international equipment comparisons where CFM and liters per second appear on different datasheets.
Common mistakes
- Do not round a flow rate value too early if the number will be reused in a later calculation.
- Do not mix CFM and L/s labels when copying values into a note or chart.
- Do not treat a display-friendly rounded result as a substitute for the exact formula in technical work.
Real-world examples
- 1 CFM converts to 0.471947 L/s using the formula shown on this page.
Context and regional usage
- This flow rate conversion is most useful when one source publishes CFM and the receiving workflow expects L/s.
- Keep the original and converted units together when you record the result in a note, spreadsheet, or checklist.
More exact searches in this topic
Use the full calculator
This exact answer is useful for search and quick reference, but the full tool lets you test any nearby number instantly.
Flow Rate (L/s)
0.471947 L/s
Live result
1 CFM equals 0.471947 L/s.
Common CFM to L/s values
| CFM | L/s |
|---|---|
| 1 CFM | 0.471947 L/s |
| 2 CFM | 0.943894 L/s |
| 5 CFM | 2.359735 L/s |
| 10 CFM | 4.71947 L/s |
| 20 CFM | 9.43894 L/s |
| 50 CFM | 23.59735 L/s |
| 100 CFM | 47.1947 L/s |
| 500 CFM | 235.9735 L/s |
Accuracy notes
- CFM means cubic feet per minute. Some international searches use PCM for the same idea, but this page keeps the English CFM label.
- Airflow values are often rounded in product catalogs, so keep the exact converted value until the final comparison.
- For HVAC design, confirm whether the airflow is outdoor air, supply air, exhaust air, or total fan capacity.
Frequently asked questions
What is 1 CFM in L/s?
1 CFM equals 0.471947 L/s.
What formula was used for this conversion?
This page uses L/s = CFM x 0.471947 to convert CFM into L/s.
Should I round the answer?
For quick reference, the displayed value is usually enough. If you need tighter precision, keep the full decimal result until your final reporting step.