/convert/horsepower-to-watts/ Convert horsepower (hp) to watts instantly. Includes a reference table and formula. article horsepower (hp) to watts Converter — 247QuickTools ,{ "@context": "https://schema.org", "@type": "SpeakableSpecification", "cssSelector": [".tool-intro", ".info-gain-section"] }
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horsepower (hp) to watts Converter

Convert horsepower (hp) to watts instantly. Includes a reference table and formula.

Quick answer: To convert horsepower (hp) to watts, multiply by 745.7. For example, 1 horsepower (hp) = 745.7 watts. Use the calculator below for any value.
horsepower (hp) to watts
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Common conversions
horsepower (hp) watts
Formula:

How to convert horsepower (hp) to watts

1

Enter your value

Type the number of horsepower (hp) you want to convert into the left box. The result in watts appears instantly in the right box. You can also type into the right box to convert in the other direction.

2

Use the swap button

Click the ⇄ Swap button to reverse the conversion — watts to horsepower (hp). Your current value carries across so you don't have to re-enter anything.

3

About horsepower (hp) and watts

horsepower (hp) and watts are both units of power. Use this converter to switch between them instantly.

💡 Did you know?

1 hp = 745.7 W (mechanical, UK and US). Metric horsepower (PS) used by most European carmakers is 735.5 W. A '300 PS' German car has 296 hp in UK/US terms — a small but real 1.4% gap that matters in performance comparisons.

📊 Common conversions at a glance
horsepower (hp) watts
0.5 372.9
1 745.7
2 1491
5 3728
10 7457
50 3.728e+04
Reviewed for 2026. horsepower (hp) ↔ watts conversion factor verified against published reference data. Built by a UK-based qualified primary teacher and FA Level 2 coach as part of 247QuickTools' free utility-tools project.