Convert CFM per Square Foot to Decimeters per Second
1 cubic foot per square foot per minute (ft³/(ft²·min)) equals 0.0508 decimeters per second (dm/s).
1 ft³/(ft²·min) = 0.0508 dm/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 decimeter per second converter to paste a column from Excel.
How to Convert CFM per Square Foot to Decimeter per Second
- 1 ft³/(ft²·min) = 0.0508 dm/s
- 1 dm/s = 19.68503937 ft³/(ft²·min)
- Example: convert 15 ft³/(ft²·min) to dm/s: 15 ft³/(ft²·min) = 15 × 0.0508 dm/s = 0.762 dm/s
Formula
dm/s = ft³/(ft²·min) × 0.0508
or dm/s = ft³/(ft²·min) ÷ 19.68503937008
Derivation from SI units:
- 1 ft³/(ft²·min) = 0.3048³ m³ ÷ (0.3048² m² × 60 s) = 0.00508 m/s = 1 ft/min
- 1 dm/s = 0.1 m ÷ 1 s
- 1 ft³/(ft²·min) = 0.00508 m/s ÷ 0.1 m/s per dm/s = 0.0508 dm/s
Both units are defined exactly, so the factor is exact. CFM per Square Foot definition: cubic foot per square foot per minute; Decimeter per Second definition: decimeter per second.
Worked examples
- A reading of 25 ft³/(ft²·min) converts to 1.27 dm/s.
25 ft³/(ft²·min) × 0.0508 = 1.27 dm/s - A value of 100 ft³/(ft²·min) is 5.08 dm/s.
100 ft³/(ft²·min) × 0.0508 = 5.08 dm/s
CFM per Square Foot to Decimeter per Second conversion table
| CFM per Square Foot (ft³/(ft²·min)) | Decimeters per Second (dm/s) |
|---|---|
| 1 ft³/(ft²·min) | 0.0508 dm/s |
| 2 ft³/(ft²·min) | 0.1016 dm/s |
| 5 ft³/(ft²·min) | 0.254 dm/s |
| 10 ft³/(ft²·min) | 0.508 dm/s |
| 15 ft³/(ft²·min) | 0.762 dm/s |
| 20 ft³/(ft²·min) | 1.016 dm/s |
| 25 ft³/(ft²·min) | 1.27 dm/s |
| 30 ft³/(ft²·min) | 1.524 dm/s |
| 40 ft³/(ft²·min) | 2.032 dm/s |
| 50 ft³/(ft²·min) | 2.54 dm/s |
| 60 ft³/(ft²·min) | 3.048 dm/s |
| 75 ft³/(ft²·min) | 3.81 dm/s |
| 100 ft³/(ft²·min) | 5.08 dm/s |
| 150 ft³/(ft²·min) | 7.62 dm/s |
| 200 ft³/(ft²·min) | 10.16 dm/s |
| 300 ft³/(ft²·min) | 15.24 dm/s |
| 500 ft³/(ft²·min) | 25.4 dm/s |
| 1000 ft³/(ft²·min) | 50.8 dm/s |
Where it's used
CFM per Square Foot are used for ASTM D737 fabric air permeability (inch-pound reporting), while decimeters per second appear in occasional instrument read-outs. 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 decimeters per second are in 1 cubic foot per square foot per minute?
1 ft³/(ft²·min) = 0.0508 dm/s.
How do I convert cubic feet per square foot per minute to decimeters per second?
Multiply the value in ft³/(ft²·min) by 0.0508, or divide it by 19.68503937. For example, 15 ft³/(ft²·min) × 0.0508 = 0.762 dm/s.
Is the ft³/(ft²·min) to dm/s conversion exact?
Yes. Both units are defined exactly, and 1 ft³/(ft²·min) is exactly 0.0508 dm/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 deci.
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 Decimeters per Second. Retrieved October 17, 2026, from https://scientificconverters.com/face-velocity/cfm-per-square-foot-to-decimeters-per-second/
IEEE
Scientific Converters, "Convert CFM per Square Foot to Decimeters per Second," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/face-velocity/cfm-per-square-foot-to-decimeters-per-second/