21 Cubic Inch/Minute to Cubic Foot/Minute
Quick answer
21 Cubic Inch/Minute (in³/min) equals
0.012153 cfm
To convert 21 Cubic Inch/Minutes to Cubic Foot/Minutes, multiply by 0.0005787037. Therefore, 21 Cubic Inch/Minute (in³/min) equals 0.012153 Cubic Foot/Minute (cfm).
Formula: cfm = in³/min × 0.0005787037. Calculation: 21 × 0.0005787037 = 0.012153 cfm.
Convert Cubic Inch/Minute (in³/min) to Cubic Foot/Minute (cfm) online with our free unit converter. In flow rate, 1 in³/min = 0.000579 cfm. Explore step-by-step conversion steps, mathematical formulas, and quick conversion reference tables below.
Worked example: converting Cubic Inch/Minute to Cubic Foot/Minute
- Step 1 — start with the formula. cfm = in³/min × 0.0005787037
- Step 2 — substitute your figure. 21 in³/min × 0.0005787037
- Step 3 — read the result. 21 in³/min = 0.012153 cfm
- Step 4 — check it in reverse. in³/min = cfm × 1,728.0000210898 returns 21.0004 in³/min, which matches the figure you started with.
Flow Rate Converter
14 units available
21 in³/min = 0.012153 cfm
Formula:
cfm = in³/min × 0.0005787037With your value: 21 in³/min = 0.01215278 cfm
Other Cubic Inch/Minute to Cubic Foot/Minute conversions
Cubic Inch/Minute to Cubic Foot/Minute Conversion Table
| Cubic Inch/Minute (in³/min) | Cubic Foot/Minute (cfm) |
|---|---|
| 0.5 | 0.000289 |
| 1 | 0.000579 |
| 2 | 0.001157 |
| 5 | 0.002894 |
| 10 | 0.005787 |
| 15 | 0.008681 |
| 20 | 0.011574 |
| 25 | 0.014468 |
| 50 | 0.028935 |
| 100 | 0.05787 |
| 250 | 0.144676 |
| 500 | 0.289352 |
| 1000 | 0.578704 |
Cubic Foot/Minute to Cubic Inch/Minute Conversion Table
| Cubic Foot/Minute (cfm) | Cubic Inch/Minute (in³/min) |
|---|---|
| 0.5 | 864.000011 |
| 1 | 1,728.000021 |
| 2 | 3,456.000042 |
| 5 | 8,640.000105 |
| 10 | 17,280.000211 |
| 15 | 25,920.000316 |
| 20 | 34,560.000422 |
| 25 | 43,200.000527 |
| 50 | 86,400.001054 |
| 100 | 172,800.002109 |
| 250 | 432,000.005272 |
| 500 | 864,000.010545 |
| 1000 | 1,728,000.02109 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Cubic Inch/Minute (in³/min)
Flow Rate
Derived quantity: a defined volume divided by a defined time interval (m³/s). All listed units are exact multiples of the cubic metre per second.
Source: ISO 80000, Quantities and units (all parts)
International Organization for Standardization · Reviewed 2026-07-01
Cubic Foot/Minute (cfm)
Flow Rate
Derived quantity: a defined volume divided by a defined time interval (m³/s). All listed units are exact multiples of the cubic metre per second.
Source: ISO 80000, Quantities and units (all parts)
International Organization for Standardization · Reviewed 2026-07-01
How to Convert Cubic Inch/Minute to Cubic Foot/Minute
To convert from Cubic Inch/Minute (in³/min) to Cubic Foot/Minute (cfm), multiply the value by 0.0005787037.
Formula: cfm = in³/min × 0.0005787037
Reverse: in³/min = cfm × 1,728.0000210898
Step-by-Step Example
- Start with your value in Cubic Inch/Minute. For example: 5 in³/min
- Multiply by the conversion factor: 5 x 0.0005787037
- The result is: 0.002894 cfm
Cubic Inch/Minute and Cubic Foot/Minute Relationship
This calculation facilitates standardized conversion between recognized units of flow rate. Since 1 Cubic Inch/Minute represents a fraction of a Cubic Foot/Minute (1 Cubic Foot/Minute ≈ 1,728 Cubic Inch/Minutes), the Cubic Foot/Minute is the larger measurement interval. Understanding the relationship between Cubic Inch/Minute and Cubic Foot/Minute is essential for accurate calculations in physics, engineering, commerce, and daily applications.
About Cubic Inch/Minute
The Cubic Inch/Minute (symbol: in³/min) is a recognized unit in the US Customary / Imperial measurement framework, utilized within flow rate applications for precision and standardized data representation.
Common uses of Cubic Inch/Minute: flow rate calculations, engineering and science, education.
About Cubic Foot/Minute
The Cubic Foot/Minute (symbol: cfm) is a recognized unit in the Standard measurement framework, utilized within flow rate applications for precision and standardized data representation.
Common uses of Cubic Foot/Minute: flow rate calculations, engineering and science, education.
Frequently Asked Questions
- What is 21 Cubic Inch/Minute in Cubic Foot/Minute?
- 21 Cubic Inch/Minute equals 0.012153 Cubic Foot/Minute.
- How many Cubic Foot/Minutes are in 1 Cubic Inch/Minute?
- There are exactly 0.0005787037 Cubic Foot/Minutes in 1 Cubic Inch/Minute. This means the conversion factor from Cubic Inch/Minute to Cubic Foot/Minute is 0.0005787037.
- What is the formula to convert Cubic Inch/Minute to Cubic Foot/Minute?
- The formula to convert Cubic Inch/Minute to Cubic Foot/Minute is: cfm = in³/min × 0.0005787037. For example, to convert 10 Cubic Inch/Minutes to Cubic Foot/Minutes, you would multiply 10 by 0.0005787037.
- What is a Cubic Inch/Minute?
- The Cubic Inch/Minute (symbol: in³/min) is a recognized unit in the US Customary / Imperial measurement framework, utilized within flow rate applications for precision and standardized data representation.
- What is a Cubic Foot/Minute?
- The Cubic Foot/Minute (symbol: cfm) is a recognized unit in the Standard measurement framework, utilized within flow rate applications for precision and standardized data representation.
- What are the common uses of Cubic Inch/Minute?
- The Cubic Inch/Minute is commonly used in flow rate calculations, engineering and science, education.
Related Flow Rate Conversions
Cite this page
UnitConvertLab. (2026). 21 Cubic Inch/Minute to Cubic Foot/Minute. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/21-cubic_inch_per_minute-to-cfm