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Power Converter · Free, instant results with formula and a full conversion table
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To convert Horsepower to Metric Horsepower: multiply by 1.01387. 1 hp × 1.01387 = 1.01387 PS
| Horsepower (hp) | Metric Horsepower (PS) |
|---|---|
| 0.1 hp | 0.101387 PS |
| 0.25 hp | 0.253467 PS |
| 0.5 hp | 0.506935 PS |
| 1 hp | 1.01387 PS |
| 2 hp | 2.02774 PS |
| 5 hp | 5.06935 PS |
| 10 hp | 10.1387 PS |
| 20 hp | 20.2774 PS |
| 25 hp | 25.3467 PS |
| 50 hp | 50.6935 PS |
| 100 hp | 101.387 PS |
| 250 hp | 253.467 PS |
| 500 hp | 506.935 PS |
| 1,000 hp | 1013.87 PS |
Use our free horsepower to metric horsepower converter to get accurate results in under one second. This power conversion tool is essential for anyone working in automotive engineering, electric vehicles, electrical systems, and machinery specification. Simply enter your value above, click Convert, and see the result instantly with the exact formula shown. You can also reverse the conversion, copy the result, or adjust decimal precision.
The conversion formula is a single constant factor: 1 Horsepower equals 1.01387 Metric Horsepower. Multiply any horsepower value by 1.01387 to obtain the equivalent in metric horsepower. All calculations on ConvertNow use verified constants, and the table below is computed with the same factor.
Quick estimate: multiply horsepower by 1 instead of 1.01387 — within about 1.4% of the exact result.
Each example below is worked with the exact formula, step by step — so you can check the math or adapt it to your own numbers.
| Value | Working | Result |
|---|---|---|
| 0.001 hp | 0.001 hp × 1.01387 = | 0.001 PS |
| 0.1 hp | 0.1 hp × 1.01387 = | 0.101 PS |
| 100 hp | 100 hp × 1.01387 = | 101.387 PS |
| 10000 hp | 10000 hp × 1.01387 = | 10,139 PS |
Horsepower (hp) is part of the Imperial / US Customary measurement system, while Metric Horsepower (PS) belongs to the Metric (continental European) system. The difference matters because a recipe, blueprint, or technical spec written in one system will not match measurements in the other unless converted precisely. Mixing systems without conversion can lead to comparing an EV motor in kilowatts against a gasoline engine in horsepower without converting, and undersizing a generator.
Power conversions are used every day in automotive engineering, electric vehicles, electrical systems, and machinery specification. Professionals in these fields rely on fast, accurate tools because even small rounding errors multiply across large datasets or recipes. ConvertNow keeps your workflow moving with instant results, so you never have to open a spreadsheet or do manual math.
Common mistakes when converting horsepower to metric horsepower include confusing mechanical horsepower (hp) with metric horsepower (PS), which differ by about 1.4%, and confusing power (kW) with energy (kWh) when comparing motors and batteries, and rounding too early in the calculation. Always verify the direction of the conversion and use the swap button if you need to reverse it.
The following table shows 20 common conversion values from horsepower to metric horsepower for fast reference without calculator use.
| Horsepower (hp) | Metric Horsepower (PS) |
|---|---|
| 0.1 | 0.101 |
| 0.25 | 0.253 |
| 0.5 | 0.507 |
| 0.75 | 0.76 |
| 1 | 1.014 |
| 2 | 2.028 |
| 3 | 3.042 |
| 5 | 5.069 |
| 10 | 10.139 |
| 15 | 15.208 |
| 20 | 20.277 |
| 25 | 25.347 |
| 50 | 50.693 |
| 75 | 76.04 |
| 100 | 101.387 |
| 150 | 152.08 |
| 200 | 202.774 |
| 250 | 253.467 |
| 300 | 304.161 |
| 500 | 506.935 |
There are 1.01387 metric horsepower in 1 horsepower.
Multiply your horsepower value by 1.01387. For quick mental math, you can round the factor to 1 when precision is not critical.
The Horsepower is the larger unit of the two: 1 Horsepower equals 1.01387 Metric Horsepower.
Horsepower is primarily used in the United States and car markets worldwide, for engine and motor ratings. Metric Horsepower is primarily used in continental Europe, for car engine ratings (PS/CV).
Yes. Install ConvertNow as a Progressive Web App and perform this conversion offline. If you need currency rates, an internet connection is required because those update live.
Accurate conversion prevents costly errors in automotive engineering, electric vehicles, electrical systems, and machinery specification. Using the wrong unit can lead to comparing an EV motor in kilowatts against a gasoline engine in horsepower without converting, and undersizing a generator.
Need the opposite direction? Use the Metric Horsepower to Horsepower Converter to convert metric horsepower back to horsepower.
Browse every tool in this category on the Power Converter hub page.