CFM to Liter/sec [ l/s ] Calculator
🔄 CFM ↔ L/s Converter 🚰
Contents
📝 Conversion Formulas:
- 1 CFM = 0.471947 L/s
- 1 L/s = 2.11888 CFM
🧮 This conversion accounts for:
- 1 cubic foot = 28.3168 liters
- 1 minute = 60 seconds
- 28.3168 ÷ 60 = 0.471947 L/s per CFM
| CFM (ft³/min) | L/s (Liters/second) |
|---|---|
| 0 | 0 |
| 1 | 0.471947 |
| 10 | 4.719471 |
| 100 | 47.19472 |
| 1000 | 471.9472 |
When One need to Covert Between CFM and L/s
If an HVAC engineer is designing the ventilation system for a hospital’s operating room. If is very important to keep the air clean to reduce germs in the air, and also for patients safety. If the rules say the room needs 600 CFM (Cubic Feet per Minute) of airflow, but the hospital follows international guidelines that use Liters per Second (L/s). For that purpose the engineer need to convert between the two to make sure everything meets the right standards.
How to Convert From CFM To L/s
The formula for converting Cubic Feet per Minute (CFM) to Liters per Second (L/s) is
Remember that rules says that ventilation system for a hospital’s operating room require 600 CFM:
For 600 CFM, the calculation is:
It means the operating room’s ventilation system provides about 283.17 L/s of clean air. Now the engineer cab make sure it meets the hospital’s airflow standards and keeps the environment safe for patients and doctors.
Quick Reference Table
| L/s Calculation | L/s | CFM Calculation | |
|---|---|---|---|
| 1 | 1 × 0.471947 = 0.4719 | 1 | 1 × 2.11888 = 2.1189 |
| 2 | 2 × 0.471947 = 0.9439 | 2 | 2 × 2.11888 = 4.2378 |
| 3 | 3 × 0.471947 = 1.4158 | 3 | 3 × 2.11888 = 6.3566 |
| 4 | 4 × 0.471947 = 1.8878 | 4 | 4 × 2.11888 = 8.4755 |
| 5 | 5 × 0.471947 = 2.3597 | 5 | 5 × 2.11888 = 10.5944 |
| 6 | 6 × 0.471947 = 2.8317 | 6 | 6 × 2.11888 = 12.7133 |
| 7 | 7 × 0.471947 = 3.3036 | 7 | 7 × 2.11888 = 14.8322 |
| 8 | 8 × 0.471947 = 3.7756 | 8 | 8 × 2.11888 = 16.9510 |
| 9 | 9 × 0.471947 = 4.2475 | 9 | 9 × 2.11888 = 19.0699 |
| 10 | 10 × 0.471947 = 4.7195 | 10 | 10 × 2.11888 = 21.1888 |
| 11 | 11 × 0.471947 = 5.1914 | 11 | 11 × 2.11888 = 23.3077 |
| 12 | 12 × 0.471947 = 5.6634 | 12 | 12 × 2.11888 = 25.4266 |
| 13 | 13 × 0.471947 = 6.1353 | 13 | 13 × 2.11888 = 27.5454 |
| 14 | 14 × 0.471947 = 6.6073 | 14 | 14 × 2.11888 = 29.6643 |
| 15 | 15 × 0.471947 = 7.0792 | 15 | 15 × 2.11888 = 31.7832 |
| 16 | 16 × 0.471947 = 7.5511 | 16 | 16 × 2.11888 = 33.9021 |
| 17 | 17 × 0.471947 = 8.0231 | 17 | 17 × 2.11888 = 36.0209 |
| 18 | 18 × 0.471947 = 8.4950 | 18 | 18 × 2.11888 = 38.1398 |
| 19 | 19 × 0.471947 = 8.9670 | 19 | 19 × 2.11888 = 40.2587 |
| 20 | 20 × 0.471947 = 9.4389 | 20 | 20 × 2.11888 = 42.3776 |
| 21 | 21 × 0.471947 = 9.9109 | 21 | 21 × 2.11888 = 44.4964 |
| 22 | 22 × 0.471947 = 10.3828 | 22 | 22 × 2.11888 = 46.6153 |
| 23 | 23 × 0.471947 = 10.8547 | 23 | 23 × 2.11888 = 48.7342 |
| 24 | 24 × 0.471947 = 11.3267 | 24 | 24 × 2.11888 = 50.8531 |
| 25 | 25 × 0.471947 = 11.7986 | 25 | 25 × 2.11888 = 52.9719 |
| 26 | 26 × 0.471947 = 12.2706 | 26 | 26 × 2.11888 = 55.0908 |
| 27 | 27 × 0.471947 = 12.7425 | 27 | 27 × 2.11888 = 57.2097 |
| 28 | 28 × 0.471947 = 13.2145 | 28 | 28 × 2.11888 = 59.3286 |
| 29 | 29 × 0.471947 = 13.6864 | 29 | 29 × 2.11888 = 61.4474 |
| 30 | 30 × 0.471947 = 14.1584 | 30 | 30 × 2.11888 = 63.5663 |
| … | … | … | … |
| 50 | 50 × 0.471947 = 23.5974 | 50 | 50 × 2.11888 = 105.944 |
| 60 | 60 × 0.471947 = 28.3168 | 60 | 60 × 2.11888 = 127.1328 |
| 70 | 70 × 0.471947 = 33.0363 | 70 | 70 × 2.11888 = 148.3216 |
| 80 | 80 × 0.471947 = 37.7558 | 80 | 80 × 2.11888 = 169.5104 |
| 90 | 90 × 0.471947 = 42.4752 | 90 | 90 × 2.11888 = 190.6992 |
| 100 | 100 × 0.471947 = 47.1947 | 100 | 100 × 2.11888 = 211.888 |
