Horsepower to Watt Converter

1 hp = 745.7 watts. Multiply horsepower by 745.7 to get watts; divide watts by 745.7 to go back.

745.7
watts → horsepower Formula: w = hp × 745.7
Quick: 1 hp 5 hp 10 hp 20 hp 50 hp 100 hp

horsepower to watts conversion table

horsepowerwatts
1 hp 745.7 w
2 hp 1,491.4 w
3 hp 2,237.1 w
4 hp 2,982.8 w
5 hp 3,728.5 w
6 hp 4,474.2 w
7 hp 5,219.9 w
8 hp 5,965.6 w
horsepowerwatts
9 hp 6,711.3 w
10 hp 7,457 w
20 hp 14,914 w
50 hp 37,285 w
100 hp 74,570 w
500 hp 372,850 w
1,000 hp 745,700 w

How to convert horsepower to watts

Step 1

Take the value in horsepower.

10 hp

Step 2

Multiply by 745.7.

10 × 745.7

Step 3

Round to the precision you need.

= 7,457 w

The factor is rounded to six significant digits; the copy button on any result gives the full-precision value.

Table of Contents

Professional Horsepower to Watt Conversion

Convert horsepower (HP) to watts (W) with our advanced power calculator designed for electrical and mechanical engineers. Essential for motor specifications, power system design, and energy efficiency analysis across automotive and industrial applications.

Comprehensive Power Calculations

Get instant conversions with additional insights including power factor considerations, efficiency ratings, and electrical load analysis. Our tool supports multiple horsepower standards ensuring accuracy for international projects and equipment specifications.

Common horsepower to watts conversions

1 hp → 745.7 w 1.2 hp → 894.84 w 1.3 hp → 969.41 w 2 hp → 1,491.4 w 2.4 hp → 1,789.68 w 3 hp → 2,237.1 w 3.5 hp → 2,609.95 w 4 hp → 2,982.8 w 5 hp → 3,728.5 w 6 hp → 4,474.2 w 7 hp → 5,219.9 w 7.5 hp → 5,592.75 w 8 hp → 5,965.6 w 8.5 hp → 6,338.45 w 9 hp → 6,711.3 w 10 hp → 7,457 w 11 hp → 8,202.7 w 12 hp → 8,948.4 w 13 hp → 9,694.1 w 14 hp → 10,439.8 w 15 hp → 11,185.5 w 16 hp → 11,931.2 w 17 hp → 12,676.9 w 18 hp → 13,422.6 w

These are the values people actually search for. Any other number works in the converter above; only these pages are listed for search engines.

Frequently asked questions

How many watts are in a hp?
There are 745.7 watts in one hp. Going the other way, one w is 0.00134102 horsepower.
How do I convert horsepower to watts?
Multiply the number of horsepower by 745.7. For example, 10 hp × 745.7 = 7,457 w.
What is 5 horsepower in watts?
5 horsepower is 3,728.5 watts.
What is 100 horsepower in watts?
100 horsepower is 74,570 watts.

Related converters

horsepower → watts1 hp = 745.7 w horsepower → kilowatts1 hp = 0.7457 kw horsepower → megawatts1 hp = 0.0007457 mw
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