# Metric horsepower (PS) to Kilowatts (PS to kW)

> Convert metric horsepower (PS) to kilowatts: 1 PS = 0.735499 kW. Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.

- Page id: `ps-to-kw` · Quantity: Power (`power`, base unit W) · Tool: `convert_units`
- Canonical page: https://tttkmbb.com/conversion/ps-to-kw · This document: https://tttkmbb.com/conversion/ps-to-kw.md · JSON: https://tttkmbb.com/conversion/ps-to-kw.json (add `?value=` for a result)

## Formula

- `1 PS = 0.735499 kW`
- `kilowatts = metric horsepower (PS) × 0.73549875`
- Reverse: `metric horsepower (PS) = kilowatts × 1.359621617`

The factor follows from the SI definitions of both units (NIST SP 811); values below are rounded to 6 significant figures, the API returns up to 12.

## Worked examples

- 5 PS = 3.67749 kW
- 12.5 PS = 9.19373 kW
- 100 PS = 73.5499 kW

## Conversion table

| Metric horsepower (PS) (PS) | Kilowatts (kW) |
| --- | --- |
| 1 | 0.735499 |
| 2 | 1.471 |
| 3 | 2.2065 |
| 4 | 2.94199 |
| 5 | 3.67749 |
| 6 | 4.41299 |
| 7 | 5.14849 |
| 8 | 5.88399 |
| 9 | 6.61949 |
| 10 | 7.35499 |
| 15 | 11.0325 |
| 20 | 14.71 |
| 25 | 18.3875 |
| 30 | 22.065 |
| 40 | 29.4199 |
| 50 | 36.7749 |
| 75 | 55.1624 |
| 100 | 73.5499 |
| 200 | 147.1 |
| 250 | 183.875 |
| 500 | 367.749 |
| 1000 | 735.499 |

## API

- `GET https://tttkmbb.com/api/v1/convert?value=5&from_unit=hp_metric&to_unit=kW` → unified JSON envelope with `result.values.result`, `formula`, `factor`, `sources`, `freshness`
- MCP: server `https://tttkmbb.com/mcp`, tool `convert_units` with `{"value":5,"from_unit":"hp_metric","to_unit":"kW"}`
- All power units: https://tttkmbb.com/api/v1/units?quantity=power · full converter: [Power Converter](https://tttkmbb.com/conversion/power.md)
- Authentication: none. Freshness: `static` (fixed conversion factors).

## FAQ

**How many kilowatts are in one metric horsepower?**

1 PS = 0.735499 kW. The factor comes from the SI definitions of both units (NIST SP 811 / BIPM), so it is exact or correct to at least 10 significant figures.

**What is the formula to convert metric horsepower (PS) to kilowatts?**

Multiply the value in metric horsepower (PS) by 0.73549875: kilowatts = metric horsepower (PS) × 0.73549875. For example, 5 PS = 3.67749 kW.

**How do I convert kilowatts back to metric horsepower (PS)?**

Multiply by the inverse factor 1.359621617 (metric horsepower (PS) = kilowatts × 1.359621617), or use the kilowatts-to-metric horsepower (PS) page.

## Related conversions

- [Kilowatts to metric horsepower (PS)](https://tttkmbb.com/conversion/kw-to-ps.md) (reverse)
- [Horsepower (mechanical) to Kilowatts](https://tttkmbb.com/conversion/hp-to-kw.md)
- [Kilowatts to Horsepower (mechanical)](https://tttkmbb.com/conversion/kw-to-hp.md)
- [Kilowatts to Watts](https://tttkmbb.com/conversion/kw-to-watts.md)
- [Watts to Kilowatts](https://tttkmbb.com/conversion/watts-to-kw.md)
- [BTU per hour to Watts](https://tttkmbb.com/conversion/btu-per-hour-to-watts.md)
- [Watts to BTU per hour](https://tttkmbb.com/conversion/watts-to-btu-per-hour.md)
- [Tons of refrigeration to Kilowatts](https://tttkmbb.com/conversion/tons-of-refrigeration-to-kw.md)
- [Kilowatts to Tons of refrigeration](https://tttkmbb.com/conversion/kw-to-tons-of-refrigeration.md)

## Data Sources

- NIST Special Publication 811 – Guide for the Use of the International System of Units (SI), Appendix B conversion factors — https://www.nist.gov/pml/special-publication-811 (standard, retrieved 2026-09-24)
- BIPM – The International System of Units (SI Brochure, 9th edition) — https://www.bipm.org/en/publications/si-brochure (standard, retrieved 2026-09-24)
- Wikipedia – Conversion of units — https://en.wikipedia.org/wiki/Conversion_of_units (reference, retrieved 2026-09-24)