/convert/hp-to-w/ Convert horsepower to watts instantly with a reference conversion table. article horsepower to watts Converter — 247QuickTools ,{ "@context": "https://schema.org", "@type": "SpeakableSpecification", "cssSelector": [".tool-intro", ".info-gain-section"] }
⚡ Power

horsepower to watts Converter

Convert horsepower to watts instantly with a reference conversion table.

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

How to convert horsepower to watts

1

Enter your value

Type the number of horsepower 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. Your current value carries across so you don't have to re-enter anything.

3

About horsepower and watts

horsepower and watts are common power measurements.

💡 Did you know?

1 mechanical horsepower = 745.7 W. James Watt coined 'horsepower' in 1782 to market his steam engines against horses. A horse actually produces about 0.5 hp in sustained work (15 hp for short bursts). Watt defined 1 hp as 33,000 ft·lbf/minute — what he measured as a brewery horse's working rate.

📊 Common conversions at a glance
horsepower watts
0.00134 0.9992
0.01 7.457
0.1 74.57
0.5 372.9
1 745.7
2 1491
Reviewed for 2026. horsepower ↔ 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.