Convert CFM per Square Foot to Centimeters per Second
1 cubic foot per square foot per minute (ft³/(ft²·min)) equals 0.508 centimeters per second (cm/s).
1 ft³/(ft²·min) = 0.508 cm/s
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk cubic foot per square foot per minute to centimeter per second converter to paste a column from Excel.
How to Convert CFM per Square Foot to Centimeter per Second
- 1 ft³/(ft²·min) = 0.508 cm/s
- 1 cm/s = 1.968503937 ft³/(ft²·min)
- Example: convert 15 ft³/(ft²·min) to cm/s: 15 ft³/(ft²·min) = 15 × 0.508 cm/s = 7.62 cm/s
Formula
cm/s = ft³/(ft²·min) × 0.508
or cm/s = ft³/(ft²·min) ÷ 1.968503937008
Derivation from SI units:
- 1 ft³/(ft²·min) = 0.3048³ m³ ÷ (0.3048² m² × 60 s) = 0.00508 m/s = 1 ft/min
- 1 cm/s = 0.01 m ÷ 1 s = 1 cm³/(s·cm²)
- 1 ft³/(ft²·min) = 0.00508 m/s ÷ 0.01 m/s per cm/s = 0.508 cm/s
Both units are defined exactly, so the factor is exact. CFM per Square Foot definition: cubic foot per square foot per minute; Centimeter per Second definition: centimeter per second.
Worked examples
- A reading of 25 ft³/(ft²·min) converts to 12.7 cm/s.
25 ft³/(ft²·min) × 0.508 = 12.7 cm/s - A value of 100 ft³/(ft²·min) is 50.8 cm/s.
100 ft³/(ft²·min) × 0.508 = 50.8 cm/s
CFM per Square Foot to Centimeter per Second conversion table
| CFM per Square Foot (ft³/(ft²·min)) | Centimeters per Second (cm/s) |
|---|---|
| 1 ft³/(ft²·min) | 0.508 cm/s |
| 2 ft³/(ft²·min) | 1.016 cm/s |
| 5 ft³/(ft²·min) | 2.54 cm/s |
| 10 ft³/(ft²·min) | 5.08 cm/s |
| 15 ft³/(ft²·min) | 7.62 cm/s |
| 20 ft³/(ft²·min) | 10.16 cm/s |
| 25 ft³/(ft²·min) | 12.7 cm/s |
| 30 ft³/(ft²·min) | 15.24 cm/s |
| 40 ft³/(ft²·min) | 20.32 cm/s |
| 50 ft³/(ft²·min) | 25.4 cm/s |
| 60 ft³/(ft²·min) | 30.48 cm/s |
| 75 ft³/(ft²·min) | 38.1 cm/s |
| 100 ft³/(ft²·min) | 50.8 cm/s |
| 150 ft³/(ft²·min) | 76.2 cm/s |
| 200 ft³/(ft²·min) | 101.6 cm/s |
| 300 ft³/(ft²·min) | 152.4 cm/s |
| 500 ft³/(ft²·min) | 254 cm/s |
| 1000 ft³/(ft²·min) | 508 cm/s |
Where it's used
CFM per Square Foot are used for ASTM D737 fabric air permeability (inch-pound reporting), while centimeters per second appear in filter media testing (5.33 cm/s = 32 L/min through 100 cm²). Both measure face velocity and air permeability (volumetric flow per unit area), so the conversion is a fixed factor.
CFM per Square Foot to other face velocity & air permeability units
Frequently asked questions
How many centimeters per second are in 1 cubic foot per square foot per minute?
1 ft³/(ft²·min) = 0.508 cm/s.
How do I convert cubic feet per square foot per minute to centimeters per second?
Multiply the value in ft³/(ft²·min) by 0.508, or divide it by 1.968503937. For example, 15 ft³/(ft²·min) × 0.508 = 7.62 cm/s.
Is the ft³/(ft²·min) to cm/s conversion exact?
Yes. Both units are defined exactly, and 1 ft³/(ft²·min) is exactly 0.508 cm/s.
Sources
- ASTM D737 Standard Test Method for Air Permeability of Textile Fabrics, ASTM International , inch-pound results in ft³/min/ft².
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "foot per minute".
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 2 with SI prefix centi.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert CFM per Square Foot to Centimeters per Second. Retrieved October 17, 2026, from https://scientificconverters.com/face-velocity/cfm-per-square-foot-to-centimeters-per-second/
IEEE
Scientific Converters, "Convert CFM per Square Foot to Centimeters per Second," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/face-velocity/cfm-per-square-foot-to-centimeters-per-second/