Result
This page has no server side at all. The table you paste is parsed by JavaScript inside your own browser, the chart is drawn on a canvas element on your machine, and the export file is assembled locally. Nothing is uploaded, stored or written to any log. You can disconnect from the network after the page has loaded and everything will still work — which is the simplest way to verify the claim yourself.
Facts and limits of this method
| Conversion factor | 1 kW ≈ 1.359622 metric hp |
|---|---|
| Reverse factor | 1 hp ≈ 0.735499 kW (735.49875 W) |
| Horsepower type | Metric (PS, CV) — not mechanical (hp) |
When it misleads you
- This is metric horsepower (1 hp = 735.49875 W), used across most of the world — if a spec sheet lists hp from a US or UK source, it uses mechanical horsepower (1 hp ≈ 745.699872 W), about 1.4% larger than metric.
- The factor is exact (not rounded) — metric horsepower is defined as 75 kgf·m/s, which converts to exactly 735.49875 W in SI.
- Rounding is applied only to the displayed result — internal calculations use the full precision of JavaScript floating-point numbers.
- The converter performs a purely arithmetic power unit conversion and doesn't account for drivetrain efficiency or the difference between flywheel power and wheel power in real cars.
How it is calculated
The entered value in kilowatts is multiplied by the factor 1000 / 735.49875 ≈ 1.359622, giving power in metric horsepower.
The reverse factor (how many kilowatts are in one horsepower) is computed as the inverse of the main factor and shown as a separate reference line.
The result is rounded to the chosen number of decimal places.
The calculation updates instantly whenever the value or precision changes.
Questions and answers
Is this metric or mechanical horsepower?
Metric (PS) — the one used in vehicle spec sheets across most of Europe and beyond. American/British mechanical horsepower (hp) is about 1.4% larger.
How do I convert back from horsepower to kilowatts?
Divide the hp value by the factor 1.359622 (or multiply by the reverse factor shown in the result), or use a separate "hp to kW" converter.
Why does a foreign car's listed hp differ slightly from this converter's calculation?
The source likely lists mechanical (not metric) horsepower — a different unit with a slightly different factor.
Is my data sent anywhere?
No, the whole calculation runs in your browser.