Horsepower to Kilowatts
Convert power between horsepower and kilowatts either way.
About Horsepower to Kilowatts
One imperial horsepower equals about 0.7457 kilowatts, so each side of the conversion is a fixed scaling of the other. Metric horsepower is a separate, slightly smaller unit. Brands quote power in hp, kW or PS depending on market, and mixing them up inflates or deflates a car's real output.
Formula
Horsepower to Kilowatts
1 hp = 0.7457 kW; 1 metric hp = 0.7355 kW
- metric hp
- The PS rating used in Europe
Worked example
With the default values below, Horsepower to Kilowatts returns Horsepower of 200.00. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Power valueminimum 0
- 200
- Input unitone of Horsepower (hp), Kilowatts (kW)
- Horsepower (hp)
Results
- Horsepower
- 200.00
- Kilowatts
- 149.14
- Metric HP (PS)
- 202.77
Step by step
- 1Values used
- 2Horsepower to Kilowatts
- 3Horsepower= 200.00
- 4Kilowatts= 149.14
- 5Metric HP (PS)= 202.77
Assumptions and limits
- The result is derived only from the 2 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
- Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
How is Horsepower to Kilowatts calculated?
1 hp = 0.7457 kW; 1 metric hp = 0.7355 kW One imperial horsepower equals about 0.7457 kilowatts, so each side of the conversion is a fixed scaling of the other. Metric horsepower is a separate, slightly smaller unit.
Why does Horsepower to Kilowatts matter?
Brands quote power in hp, kW or PS depending on market, and mixing them up inflates or deflates a car's real output.
What values do I need to enter?
This calculator takes 2 inputs: Power value, Input unit. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.