21 Foot-Pound/Minute to Joule/Second
Quick answer
21 Foot-Pound/Minute (ft·lbf/min) equals
0.474536 J/s
To convert 21 Foot-Pound/Minutes to Joule/Seconds, multiply by 0.0225969658. Therefore, 21 Foot-Pound/Minute (ft·lbf/min) equals 0.474536 Joule/Second (J/s).
Formula: J/s = ft·lbf/min × 0.0225969658. Calculation: 21 × 0.0225969658 = 0.474536 J/s.
Convert Foot-Pound/Minute (ft·lbf/min) to Joule/Second (J/s) online with our free unit converter. In power, 1 ft·lbf/min = 0.022597 J/s. Explore step-by-step conversion steps, mathematical formulas, and quick conversion reference tables below.
Worked example: converting Foot-Pound/Minute to Joule/Second
- Step 1 — start with the formula. J/s = ft·lbf/min × 0.0225969658
- Step 2 — substitute your figure. 21 ft·lbf/min × 0.0225969658
- Step 3 — read the result. 21 ft·lbf/min = 0.474536 J/s
- Step 4 — check it in reverse. ft·lbf/min = J/s × 44.2537289675 returns 21 ft·lbf/min, which matches the figure you started with.
Power Converter
22 units available
21 ft·lbf/min = 0.474536 J/s
Formula:
J/s = ft·lbf/min × 0.0225969658With your value: 21 ft·lbf/min = 0.47453628 J/s
How big is that?
Everyday references on a logarithmic scale, all expressed in foot-pound/minute so you can sanity-check the result.
Other Foot-Pound/Minute to Joule/Second conversions
Foot-Pound/Minute to Joule/Second Conversion Table
| Foot-Pound/Minute (ft·lbf/min) | Joule/Second (J/s) |
|---|---|
| 0.5 | 0.011298 |
| 1 | 0.022597 |
| 2 | 0.045194 |
| 5 | 0.112985 |
| 10 | 0.22597 |
| 15 | 0.338954 |
| 20 | 0.451939 |
| 25 | 0.564924 |
| 50 | 1.129848 |
| 100 | 2.259697 |
| 250 | 5.649241 |
| 500 | 11.298483 |
| 1000 | 22.596966 |
Joule/Second to Foot-Pound/Minute Conversion Table
| Joule/Second (J/s) | Foot-Pound/Minute (ft·lbf/min) |
|---|---|
| 0.5 | 22.126864 |
| 1 | 44.253729 |
| 2 | 88.507458 |
| 5 | 221.268645 |
| 10 | 442.53729 |
| 15 | 663.805935 |
| 20 | 885.074579 |
| 25 | 1,106.343224 |
| 50 | 2,212.686448 |
| 100 | 4,425.372897 |
| 250 | 11,063.432242 |
| 500 | 22,126.864484 |
| 1000 | 44,253.728967 |
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.
Foot-Pound/Minute (ft·lbf/min)
Power
Derived from the watt (1 W = 1 J/s).
Source: NIST Special Publication 811, Guide for the Use of the International System of Units
National Institute of Standards and Technology (US) · Reviewed 2026-07-01
Joule/Second (J/s)
Power
Derived from the watt (1 W = 1 J/s).
Source: NIST Special Publication 811, Guide for the Use of the International System of Units
National Institute of Standards and Technology (US) · Reviewed 2026-07-01
How to Convert Foot-Pound/Minute to Joule/Second
To convert from Foot-Pound/Minute (ft·lbf/min) to Joule/Second (J/s), multiply the value by 0.0225969658.
Formula: J/s = ft·lbf/min × 0.0225969658
Reverse: ft·lbf/min = J/s × 44.2537289675
Step-by-Step Example
- Start with your value in Foot-Pound/Minute. For example: 5 ft·lbf/min
- Multiply by the conversion factor: 5 x 0.0225969658
- The result is: 0.112985 J/s
Foot-Pound/Minute and Joule/Second Relationship
This conversion bridges the US Customary / Imperial and Metric (SI) measurement systems, commonly required when translating scientific data, international engineering specifications, or trade standards. Since 1 Foot-Pound/Minute represents a fraction of a Joule/Second (1 Joule/Second ≈ 44.2537 Foot-Pound/Minutes), the Joule/Second is the larger measurement interval. Understanding the relationship between Foot-Pound/Minute and Joule/Second is essential for accurate calculations in physics, engineering, commerce, and daily applications.
About Foot-Pound/Minute
The Foot-Pound/Minute (symbol: ft·lbf/min) is a recognized unit in the US Customary / Imperial measurement framework, utilized within power applications for precision and standardized data representation.
Common uses of Foot-Pound/Minute: power calculations, engineering and science, education.
About Joule/Second
The Joule/Second (symbol: J/s) is a recognized unit in the Metric (SI) measurement framework, utilized within power applications for precision and standardized data representation.
Common uses of Joule/Second: power calculations, engineering and science, education.
Frequently Asked Questions
- What is 21 Foot-Pound/Minute in Joule/Second?
- 21 Foot-Pound/Minute equals 0.474536 Joule/Second.
- How many Joule/Seconds are in 1 Foot-Pound/Minute?
- There are exactly 0.0225969658 Joule/Seconds in 1 Foot-Pound/Minute. This means the conversion factor from Foot-Pound/Minute to Joule/Second is 0.0225969658.
- What is the formula to convert Foot-Pound/Minute to Joule/Second?
- The formula to convert Foot-Pound/Minute to Joule/Second is: J/s = ft·lbf/min × 0.0225969658. For example, to convert 10 Foot-Pound/Minutes to Joule/Seconds, you would multiply 10 by 0.0225969658.
- What is a Foot-Pound/Minute?
- The Foot-Pound/Minute (symbol: ft·lbf/min) is a recognized unit in the US Customary / Imperial measurement framework, utilized within power applications for precision and standardized data representation.
- What is a Joule/Second?
- The Joule/Second (symbol: J/s) is a recognized unit in the Metric (SI) measurement framework, utilized within power applications for precision and standardized data representation.
- What are the common uses of Foot-Pound/Minute?
- The Foot-Pound/Minute is commonly used in power calculations, engineering and science, education.
Related Power Conversions
Cite this page
UnitConvertLab. (2026). 21 Foot-Pound/Minute to Joule/Second. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/21-foot_pound_per_minute-to-joule_per_second