Authoritative definitions of the International System of Units and SI prefixes.
Dedicated unit pair
Kilowatts to Mechanical horsepower
Convert kW to hp instantly, then review the formula, assumptions, and rounding guidance.
Energy, work, heat & powerInstant result
Decimals
Formula result = input × 1000 ÷ 745.699871582. 1 kW = 1.341 hp
Common examples
One value, several units
Watts1,000 W
Megawatts0.001 MW
Mechanical horsepower1.341 hp
Metric horsepower1.3596 PS
BTU per hour3,412.1416 BTU/h
Conversion table
| kW | hp |
|---|---|
| 1 kW | 1.341 hp |
| 2 kW | 2.682 hp |
| 5 kW | 6.7051 hp |
| 10 kW | 13.4102 hp |
| 25 kW | 33.5256 hp |
| 50 kW | 67.0511 hp |
| 100 kW | 134.1022 hp |
Conversion chart
1 kW1.341 hp
5 kW6.7051 hp
10 kW13.4102 hp
25 kW33.5256 hp
50 kW67.0511 hp
Worked example
1 mechanical horsepower is approximately 745.7 watts.
Unit definition
Kilowatts (kW) One kilowatts equals 1,000 watt.
Unit history
Kilowatts is represented here using its modern SI definition or an internationally accepted relationship to an SI base unit.
Step by step
1. Parse the value, including fractions.
2. Convert kW to watt.
3. Convert the base value to hp and apply your display precision.
Understand the result before using it
Kilowatts to Mechanical horsepower converts a value measured in Kilowatts (kW) into the equivalent value in Mechanical horsepower (hp). The numerical value changes because the size and definition of the selected unit changes; the underlying quantity does not.
Calculated result
The conversion follows the displayed unit relationship. Display rounding can hide additional digits, and measured inputs cannot become more accurate merely by changing units.
Formula, assumptions, and example
Formula
result = input × 1000 ÷ 745.699871582
Assumptions
- Kilowatts and Mechanical horsepower represent the same power quantity.
- The input is expressed in kW; the output is expressed in hp.
- The unit definitions and conventional relationship shown on this page apply.
Worked example
1 kW = 1.3410220896 hp. For another value, apply the same relationship and round only to the precision your source measurement supports.
When to use it
Good uses
- Read a kW measurement in a document that expects hp.
- Compare a kilowatts value with a value reported in mechanical horsepower.
- Check the kW-to-hp arithmetic before copying the result into another calculation.
Limitations
Common mistakes to avoid
- Do not confuse kW with another unit that has a similar name or symbol.
- Round the output to a precision justified by the original measurement.
- Verify safety-critical, regulated, laboratory, and contractual conversions against the controlling standard.
Sources and further reading
These references explain the underlying standards or provide authoritative context. Your own contract, institution, clinician, product documentation, local code, or governing standard may be the controlling source.
Guidance on unit names, symbols, conversions, and numerical presentation.
Questions about this calculation
How do I convert Kilowatts to Mechanical horsepower?
result = input × 1000 ÷ 745.699871582 Using the displayed relationship, 1 kW equals 1.3410220896 hp.
How many Mechanical horsepower are in one Kilowatts?
One Kilowatts is 1.3410220896 Mechanical horsepower. The displayed digits may be rounded.
Can I reverse the kW to hp conversion?
Yes. Swap the source and target units in the converter. The reverse relationship converts hp back to kW.
Is the Kilowatts to Mechanical horsepower result exact?
The conversion follows the displayed unit relationship. Display rounding can hide additional digits, and measured inputs cannot become more accurate merely by changing units.