hp to kW
Convert hp to kW. Enter a value and view the calculation method, examples and conversion table.
Power converter
hp to kW formula
The calculator converts the input to the category's reference unit, then divides by the target unit's factor.
Result = input × source factor ÷ target factor
1 × (745.699871582 ÷ 1,000) ≈ 0.7457
Worked example: 1 Horsepower ≈ 0.7457 Kilowatts
Auto mode preserves significant digits for small values; manual mode rounds to the selected decimal places. ≈ means approximate; < means below the display limit. Extreme values use × 10ⁿ. Calculations are rounded only for display.
hp to kW conversion table
| Horsepower | Kilowatts |
|---|---|
| 1 Horsepower | ≈ 0.7457 Kilowatts |
| 2 Horsepower | ≈ 1.4914 Kilowatts |
| 5 Horsepower | ≈ 3.728499 Kilowatts |
| 10 Horsepower | ≈ 7.456999 Kilowatts |
| 20 Horsepower | ≈ 14.913997 Kilowatts |
| 50 Horsepower | ≈ 37.284994 Kilowatts |
| 100 Horsepower | ≈ 74.569987 Kilowatts |
| 250 Horsepower | ≈ 186.424968 Kilowatts |
| 500 Horsepower | ≈ 372.849936 Kilowatts |
| 1,000 Horsepower | ≈ 745.699872 Kilowatts |
Definitions and assumptions
Power is energy transferred per unit time, expressed here relative to watts. Mechanical, metric, electrical and boiler horsepower have different definitions and are separate choices.
How to use this calculator
- Enter the value you want to convert.
- Choose the source and target units, then adjust the display precision if needed.
- Read the result. Select Convert to open a page for this value, or use the table below.
Frequently asked questions
how many kW is 1 hp?
1 Horsepower ≈ 0.7457 Kilowatts. Auto mode preserves significant digits for small values; manual mode rounds to the selected decimal places. ≈ means approximate; < means below the display limit. Extreme values use × 10ⁿ. Calculations are rounded only for display.
how to convert hp to kW?
The calculator converts the input to the category's reference unit, then divides by the target unit's factor. 1 × 0.745699871582 ≈ 0.7457 Kilowatts. Use the source and target factors shown in the formula. The worked example uses the value on this page, and the table provides other common values.
Why do horsepower results differ?
Mechanical horsepower, metric horsepower, electrical horsepower and boiler horsepower use different definitions. Select the definition matching your source document.
Why is the displayed result rounded?
Auto mode preserves significant digits for small values; manual mode rounds to the selected decimal places. ≈ means approximate; < means below the display limit. Extreme values use × 10ⁿ. Calculations are rounded only for display.
What input range can I use?
This calculator accepts non-negative values up to 1 trillion, with up to 8 decimal places. It does not calculate signed vectors or calendar date intervals.
Why is a unit unavailable?
A conversion is unavailable when a verified unit definition or a current exchange-rate value has not been configured. The tool does not invent a coefficient.
Sources and methodology
Methods and sources · Content revised
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