Metric HP (PS) to Horsepower (Metric HP (PS) to Horsepower)
Result
0.9863200706 Horsepower
Formula
Horsepower = Metric HP (PS) × 0.9863200706
1 Metric HP (PS) = 0.9863200706 Horsepower, and 1 Horsepower = 1.013869665 Metric HP (PS).
Fuel economy is converted through the US gallon (3.785411784 L) and imperial gallon (4.54609 L): L/100 km = 235.215 ÷ mpg (US). Power uses mechanical horsepower and metric horsepower (PS = 735.49875 W). Torque uses 1 lb·ft = 1.3558179 N·m.
Worked examples
- 1 Metric HP (PS) × 0.9863200706 = 0.98632007 Horsepower
- 10 Metric HP (PS) × 0.9863200706 = 9.8632007 Horsepower
- 100 Metric HP (PS) × 0.9863200706 = 98.632007 Horsepower
Common mistakes
- L/100 km is inverse to mpg — lower is better — so it does not scale linearly: going from 10 to 20 mpg saves far more fuel than going from 40 to 50.
- UK and US mpg differ because the imperial gallon is 20% larger: 40 mpg (UK) is 33.3 mpg (US).
- Car makers in Europe and Japan usually quote PS, not horsepower; 100 PS is 98.6 hp.
Metric HP (PS) to Horsepower table
| Metric HP (PS) (Metric HP (PS)) | Horsepower (Horsepower) |
|---|---|
| 1 | 0.98632007 |
| 2 | 1.9726401 |
| 5 | 4.9316004 |
| 10 | 9.8632007 |
| 20 | 19.726401 |
| 50 | 49.316004 |
| 100 | 98.632007 |
| 1,000 | 986.32007 |
The units
- Metric HP (PS) (Metric HP (PS))
- A unit of automotive.
- Horsepower (Horsepower)
- A unit of automotive.
Sources for these factors
- Handbook 44 (2024), Appendix C: General Tables of Units of Measurement — NIST
- Guide for the Use of the International System of Units (SP 811), Appendix B: conversion factors — NIST
Last reviewed against these sources. An automated check recomputes every factor from its definition on each build. How we check accuracy