21 Erg/Second to Horsepower (Metric)
Quick answer
21 Erg/Second (erg/s) equals
2.855205e-9 PS
To convert 21 Erg/Seconds to Horsepower (Metric)s, multiply by 1.359622e-10. Therefore, 21 Erg/Second (erg/s) equals 2.855205e-9 Horsepower (Metric) (PS).
Formula: PS = erg/s × 1.359622e-10. Calculation: 21 × 1.359622e-10 = 2.855205e-9 PS.
Convert Erg/Second (erg/s) to Horsepower (Metric) (PS) online with our free unit converter. In power, 1 erg/s = 1.359622e-10 PS. Explore step-by-step conversion steps, mathematical formulas, and quick conversion reference tables below.
Worked example: converting Erg/Second to Horsepower (Metric)
- Step 1 — start with the formula. PS = erg/s × 1.359622e-10
- Step 2 — substitute your figure. 21 erg/s × 1.359622e-10
- Step 3 — read the result. 21 erg/s = 2.855205e-9 PS
- Step 4 — check it in reverse. erg/s = PS × 7.354988e+9 returns 21 erg/s, which matches the figure you started with.
Power Converter
22 units available
21 erg/s = 2.855205e-9 PS
Formula:
PS = erg/s × 1.359622e-10With your value: 21 erg/s = 2.855205e-9 PS
How big is that?
Everyday references on a logarithmic scale, all expressed in erg/second so you can sanity-check the result.
Other Erg/Second to Horsepower (Metric) conversions
Erg/Second to Horsepower (Metric) Conversion Table
| Erg/Second (erg/s) | Horsepower (Metric) (PS) |
|---|---|
| 0.5 | 6.798108e-11 |
| 1 | 1.359622e-10 |
| 2 | 2.719243e-10 |
| 5 | 6.798108e-10 |
| 10 | 1.359622e-9 |
| 15 | 2.039432e-9 |
| 20 | 2.719243e-9 |
| 25 | 3.399054e-9 |
| 50 | 6.798108e-9 |
| 100 | 1.359622e-8 |
| 250 | 3.399054e-8 |
| 500 | 6.798108e-8 |
| 1000 | 1.359622e-7 |
Horsepower (Metric) to Erg/Second Conversion Table
| Horsepower (Metric) (PS) | Erg/Second (erg/s) |
|---|---|
| 0.5 | 3,677,493,750 |
| 1 | 7,354,987,500 |
| 2 | 14,709,975,000 |
| 5 | 36,774,937,500 |
| 10 | 73,549,875,000 |
| 15 | 110,324,812,499.99998 |
| 20 | 147,099,750,000 |
| 25 | 183,874,687,500 |
| 50 | 367,749,375,000 |
| 100 | 735,498,750,000 |
| 250 | 1.838747e+12 |
| 500 | 3.677494e+12 |
| 1000 | 7.354988e+12 |
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.
Erg/Second (erg/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
Horsepower (Metric) (PS)
Power
Metric horsepower (PS) is exactly 75 kgf·m/s = 735.498 75 W.
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 Erg/Second to Horsepower (Metric)
To convert from Erg/Second (erg/s) to Horsepower (Metric) (PS), multiply the value by 1.359622e-10.
Formula: PS = erg/s × 1.359622e-10
Reverse: erg/s = PS × 7.354988e+9
Step-by-Step Example
- Start with your value in Erg/Second. For example: 5 erg/s
- Multiply by the conversion factor: 5 x 1.359622e-10
- The result is: 6.798108e-10 PS
Erg/Second and Horsepower (Metric) Relationship
This calculation facilitates standardized conversion between recognized units of power. Since 1 Erg/Second represents a fraction of a Horsepower (Metric) (1 Horsepower (Metric) ≈ 7.355e+9 Erg/Seconds), the Horsepower (Metric) is the larger measurement interval. Understanding the relationship between Erg/Second and Horsepower (Metric) is essential for accurate calculations in physics, engineering, commerce, and daily applications.
About Erg/Second
The Erg/Second (symbol: erg/s) is a recognized unit in the Standard measurement framework, utilized within power applications for precision and standardized data representation.
Common uses of Erg/Second: power calculations, engineering and science, education.
About Horsepower (Metric)
The Horsepower (Metric) (symbol: PS) is a recognized unit in the Standard measurement framework, utilized within power applications for precision and standardized data representation.
Common uses of Horsepower (Metric): power calculations, engineering and science, education.
Frequently Asked Questions
- What is 21 Erg/Second in Horsepower (Metric)?
- 21 Erg/Second equals 2.855205e-9 Horsepower (Metric).
- How many Horsepower (Metric)s are in 1 Erg/Second?
- There are exactly 1.359622e-10 Horsepower (Metric)s in 1 Erg/Second. This means the conversion factor from Erg/Second to Horsepower (Metric) is 1.359622e-10.
- What is the formula to convert Erg/Second to Horsepower (Metric)?
- The formula to convert Erg/Second to Horsepower (Metric) is: PS = erg/s × 1.359622e-10. For example, to convert 10 Erg/Seconds to Horsepower (Metric)s, you would multiply 10 by 1.359622e-10.
- What is a Erg/Second?
- The Erg/Second (symbol: erg/s) is a recognized unit in the Standard measurement framework, utilized within power applications for precision and standardized data representation.
- What is a Horsepower (Metric)?
- The Horsepower (Metric) (symbol: PS) is a recognized unit in the Standard measurement framework, utilized within power applications for precision and standardized data representation.
- What are the common uses of Erg/Second?
- The Erg/Second is commonly used in power calculations, engineering and science, education.
Related Power Conversions
Cite this page
UnitConvertLab. (2026). 21 Erg/Second to Horsepower (Metric). UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/21-erg_per_second-to-horsepower_metric