Conversion of 4.2 kW to hp
The result of converting 4.2 kilowatts to horsepower is approximately 5.63 hp.
This conversion is based on the standard formula where 1 kilowatt equals about 1.34102 horsepower. By multiplying 4.2 kW by this factor, you get a practical estimate of the horsepower equivalent.
Conversion Tool
Result in hp:
Conversion Formula
The formula to convert kilowatts to horsepower multiplies the kilowatt value by 1.34102. This number comes from the ratio where 1 kW equals approximately 1.34102 hp. This works because both units measure power, with hp being traditional in engines and kW in metric systems.
For example, to convert 4.2 kW to hp:
- Multiply 4.2 by 1.34102
- Result = 4.2 × 1.34102 = 5.636084
- Rounded to four decimal places equals 5.6361 hp
Conversion Example
Let’s convert 10 kW to hp:
- Multiply 10 by 1.34102
- 10 × 1.34102 = 13.4102
- Answer: approximately 13.4102 hp
Another example, 7.5 kW:
- 7.5 × 1.34102 = 10.05765
- Result rounded to four decimal points: 10.0576 hp
And for 2 kW:
- 2 × 1.34102 = 2.68204
- Answer: roughly 2.6820 hp
Conversion Chart
| Kilowatts (kW) | Horsepower (hp) |
|---|---|
| -20.8 | -27.91 |
| -15.0 | -20.11 |
| -10.0 | -13.41 |
| -5.0 | -6.70 |
| 0 | 0 |
| 5.0 | 6.70 |
| 10.0 | 13.41 |
| 15.0 | 20.11 |
| 20.0 | 26.81 |
| 25.0 | 33.52 |
| 29.2 | 39.18 |
This chart helps to quickly find the horsepower for given kilowatt values. To use it, locate your kW value in the first column and read across to see the equivalent hp in the second column.
Related Conversion Questions
- What is the horsepower equivalent of 4.2 kilowatts in a motor?
- How many hp are there in 4.2 kW for an industrial engine?
- Convert 4.2 kilowatts to horsepower for a vehicle engine?
- Is 4.2 kW enough to power a small generator in horsepower?
- What is the horsepower rating of a 4.2 kilowatt solar inverter?
- How do I convert 4.2 kW to hp in a mechanical context?
- What is the equivalent hp for 4.2 kilowatts in residential appliances?
Conversion Definitions
kw
Kilowatts (kW) are metric units of power measuring the rate of energy transfer or work done per second, often used for electrical power in appliances, engines, and generators. One kilowatt equals 1,000 watts.
hp
Horsepower (hp) is a traditional unit measuring engine power, originally used to compare the output of steam engines to draft horses, with 1 hp approximately equal to 745.7 watts, commonly used in automotive and mechanical contexts.
Conversion FAQs
How accurate is the conversion from 4.2 kW to hp?
The conversion based on multiplying by 1.34102 provides an accurate estimate for most practical purposes. Slight differences can occur depending on the specific standards used in different regions, but generally, this factor is reliable.
Can I convert other power units to hp using the same formula?
Yes, as long as the units are compatible, you can convert different power units to hp by using the appropriate conversion factor. For kilowatts, multiplying by 1.34102 is standard; for other units, different factors apply.
What applications require converting kilowatts to hp?
Converting kW to hp is useful in car engine specifications, generator ratings, motor power assessments, and mechanical system performance evaluations, where understanding the horsepower helps in comparing and selecting equipment.
Why is horsepower still used today despite metric units?
Horsepower remains in use because of historical legacy, familiarity, and the automotive industry’s standards. Many engines and machinery are rated in hp, especially in regions where traditional practices persist, making conversion necessary for clarity.
