Horsepower to Kilowatts Converter
Enter the power in horsepower below to convert it to kilowatts.
Convert Horsepower (hp) to Kilowatts
Enter a value in horsepower (hp) (hp) to convert to kilowatts (kW).
Horsepower to Kilowatt Conversion Table
Table showing various horsepower measurements converted to kilowatts. Click any preset value or arrow to load it into the converter.
| Horsepower (hp) (hp) | Kilowatts (kW) |
|---|---|
| 1 hp | 0.7456999 kW |
| 2 hp | 1.4913997 kW |
| 5 hp | 3.7284994 kW |
| 10 hp | 7.4569987 kW |
| 15 hp | 11.1854981 kW |
| 20 hp | 14.9139974 kW |
| 25 hp | 18.6424968 kW |
| 30 hp | 22.3709961 kW |
| 50 hp | 37.2849936 kW |
| 75 hp | 55.9274904 kW |
How to Convert Horsepower to Kilowatts
To convert horsepower to kilowatts, multiply the power by the following conversion ratio: 0.7456999 kilowatts/horsepower.
Since one horsepower is equal to 0.7456999 kilowatts, you can use this simple formula to convert:
The power in kilowatts is equal to the power in horsepower multiplied by 0.7456999.
For example, here's how to convert 200 horsepower to kilowatts using the formula above.
How Many Kilowatts Are in a Horsepower?
There are 0.7456999 kilowatts in a horsepower, which is why we use this value in the formula above.
Our horsepower to kilowatt calculator automatically converts your power measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Horsepower and kilowatts are both units used to measure power. Keep reading to learn more about each unit.
What Is a Horsepower?
A horsepower is a unit of power equal to 745.6998716 watts (W), the base unit for power. Imperial mechanical horsepower (550 ft·lbf/s ≈ 745.7 W). [1]
The horsepower is classified as a US customary and imperial unit of power. Horsepower can be abbreviated as hp; for example, 1 horsepower can be written as 1 hp.
When working with horsepower (hp) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, horsepower (hp) are widely used across standard power applications within US customary and imperial workflows, engineering documentation, and technical data sheets.
What Is a Kilowatt?
A kilowatt is a unit of power equal to 1,000 watts (W), the base unit for power. Equal to 1,000 Watts (1 kJ/s). [2]
The kilowatt is classified as a metric and SI-compatible unit of power. Kilowatts can be abbreviated as kW; for example, 1 kilowatt can be written as 1 kW.
In the metric system, "kilo" is the standard SI prefix for thousands, or 10³. This makes the kilowatt (kW) a convenient decimal multiple of the watt (W).
In practice, kilowatts (kW) are widely used across large-scale industrial, bulk, and macro-level power specifications within SI metric workflows, engineering documentation, and technical data sheets.
When converting power between horsepower (hp) and kilowatts (kW), keep full floating-point precision (1 hp = 0.7456999 kW; 1 kW = 1.3410221 hp) during intermediate calculations and round only the final kilowatt figure to match your instrument tolerance.
More Horsepower & Kilowatt Conversions
Need to calculate in the opposite direction? Use our kilowatts to horsepower (hp) converter (kW to hp) to switch your starting unit immediately. You can also explore related tools such as converting megawatts to kilowatts, converting watts to kilowatts, or converting horsepower (hp) to watts.
Convert from Horsepower
Frequently Asked Questions
References
- [1]NIST SP 811 StandardNIST SP 811 (NIST SP 811 App. B.9 (Power & Radiant Flux))·Power Metrology Standard — Horsepower (hp) (hp) to Kilowatts (kW)
- [2]NIST CUU SpecificationNIST CUU (Derived SI Unit: Watt (W))·Unit Specifications: Horsepower (Mechanical) (hp) & Kilowatt (kW)
- [3]BIPM ReferenceBIPM (SI Brochure (9th Ed.) — Power)·Conversion Factors & Mathematical Basis (hp to kW)