13 Joule/Second to Foot-Pound/Second
Quick answer
13 Joule/Second (J/s) equals
9.588308 ft·lbf/s
To convert 13 Joule/Seconds to Foot-Pound/Seconds, multiply by 0.7375621493. Therefore, 13 Joule/Second (J/s) equals 9.588308 Foot-Pound/Second (ft·lbf/s).
Formula: ft·lbf/s = J/s × 0.7375621493. Calculation: 13 × 0.7375621493 = 9.588308 ft·lbf/s.
Convert Joule/Second (J/s) to Foot-Pound/Second (ft·lbf/s) online with our free unit converter. In power, 1 J/s = 0.737562 ft·lbf/s. Explore step-by-step conversion steps, mathematical formulas, and quick conversion reference tables below.
Worked example: converting Joule/Second to Foot-Pound/Second
- Step 1 — start with the formula. ft·lbf/s = J/s × 0.7375621493
- Step 2 — substitute your figure. 13 J/s × 0.7375621493
- Step 3 — read the result. 13 J/s = 9.588308 ft·lbf/s
- Step 4 — check it in reverse. J/s = ft·lbf/s × 1.3558179483 returns 13 J/s, which matches the figure you started with.
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13 J/s = 9.588308 ft·lbf/s
Formula:
ft·lbf/s = J/s × 0.7375621493With your value: 13 J/s = 9.58830794 ft·lbf/s
How big is that?
Everyday references on a logarithmic scale, all expressed in joule/second so you can sanity-check the result.
Other Joule/Second to Foot-Pound/Second conversions
Joule/Second to Foot-Pound/Second Conversion Table
| Joule/Second (J/s) | Foot-Pound/Second (ft·lbf/s) |
|---|---|
| 0.5 | 0.368781 |
| 1 | 0.737562 |
| 2 | 1.475124 |
| 5 | 3.687811 |
| 10 | 7.375621 |
| 15 | 11.063432 |
| 20 | 14.751243 |
| 25 | 18.439054 |
| 50 | 36.878107 |
| 100 | 73.756215 |
| 250 | 184.390537 |
| 500 | 368.781075 |
| 1000 | 737.562149 |
Foot-Pound/Second to Joule/Second Conversion Table
| Foot-Pound/Second (ft·lbf/s) | Joule/Second (J/s) |
|---|---|
| 0.5 | 0.677909 |
| 1 | 1.355818 |
| 2 | 2.711636 |
| 5 | 6.77909 |
| 10 | 13.558179 |
| 15 | 20.337269 |
| 20 | 27.116359 |
| 25 | 33.895449 |
| 50 | 67.790897 |
| 100 | 135.581795 |
| 250 | 338.954487 |
| 500 | 677.908974 |
| 1000 | 1,355.817948 |
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.
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
Foot-Pound/Second (ft·lbf/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 Joule/Second to Foot-Pound/Second
To convert from Joule/Second (J/s) to Foot-Pound/Second (ft·lbf/s), multiply the value by 0.7375621493.
Formula: ft·lbf/s = J/s × 0.7375621493
Reverse: J/s = ft·lbf/s × 1.3558179483
Step-by-Step Example
- Start with your value in Joule/Second. For example: 5 J/s
- Multiply by the conversion factor: 5 x 0.7375621493
- The result is: 3.687811 ft·lbf/s
Joule/Second and Foot-Pound/Second Relationship
This conversion bridges the Metric (SI) and US Customary / Imperial measurement systems, commonly required when translating scientific data, international engineering specifications, or trade standards. Since 1 Joule/Second represents a fraction of a Foot-Pound/Second (1 Foot-Pound/Second ≈ 1.3558 Joule/Seconds), the Foot-Pound/Second is the larger measurement interval. Understanding the relationship between Joule/Second and Foot-Pound/Second is essential for accurate calculations in physics, engineering, commerce, and daily applications.
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.
About Foot-Pound/Second
The Foot-Pound/Second (symbol: ft·lbf/s) 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/Second: power calculations, engineering and science, education.
Frequently Asked Questions
- What is 13 Joule/Second in Foot-Pound/Second?
- 13 Joule/Second equals 9.588308 Foot-Pound/Second.
- How many Foot-Pound/Seconds are in 1 Joule/Second?
- There are exactly 0.7375621493 Foot-Pound/Seconds in 1 Joule/Second. This means the conversion factor from Joule/Second to Foot-Pound/Second is 0.7375621493.
- What is the formula to convert Joule/Second to Foot-Pound/Second?
- The formula to convert Joule/Second to Foot-Pound/Second is: ft·lbf/s = J/s × 0.7375621493. For example, to convert 10 Joule/Seconds to Foot-Pound/Seconds, you would multiply 10 by 0.7375621493.
- 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 is a Foot-Pound/Second?
- The Foot-Pound/Second (symbol: ft·lbf/s) is a recognized unit in the US Customary / Imperial measurement framework, utilized within power applications for precision and standardized data representation.
- What are the common uses of Joule/Second?
- The Joule/Second is commonly used in power calculations, engineering and science, education.
Related Power Conversions
Cite this page
UnitConvertLab. (2026). 13 Joule/Second to Foot-Pound/Second. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/13-joule_per_second-to-foot_pound_per_second