Power Converter

Convert between watts and other practical power units.

Power
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Related Conversions
1 hp to W 2 hp to W 5 hp to W 20 hp to W 50 hp to W 75 hp to W 100 hp to W 150 hp to W 250 hp to W 500 hp to W 1,000 hp to W 100,000 hp to W
Reverse Conversions
1 W to hp 5 W to hp 10 W to hp 25 W to hp 50 W to hp 100 W to hp 250 W to hp 500 W to hp 1,000 W to hp 2,000 W to hp 5,000 W to hp 10,000 W to hp
More Power Conversions
1 MW to kW 50 kW to hp 150 hp to kW 250 kW to hp 750 W to BTU/h 1,000 hp to kW 1,500 W to BTU/h 2,500 hp to kW 10,000 BTU/h to kW 10,000 hp to kW 18,000 BTU/h to kW 60,000 BTU/h to kW

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Common Benchmarks

Toaster 1200 W
Refrigerator average 150 W
Electric kettle 1500 W
Phone fast charge 30 W
LED bulb 10 W
E-bike motor 500 W

Formula

W = hp × 745.6998715823

Example

Example: convert 10 horsepower to watts.

10 hp = 7456.99871582 W

Conversion table

horsepower (hp) watts (W)
1 hp 745.69987158 W
2 hp 1491.39974316 W
5 hp 3728.49935791 W
10 hp 7456.99871582 W
20 hp 14913.99743165 W
50 hp 37284.99357911 W
100 hp 74569.98715823 W

Explanation

These are both units.

How to convert horsepower to watts

  1. Start with the value in horsepower (hp).
  2. Multiply it by 745.6998715823.
  3. The result is the measurement in watts (W).

Example: 10 hp → 7456.99871582 W

Frequently Asked Questions

How much is 10 horsepower in watts?

10 horsepower is about 7457 watts.

How many watts is 1 horsepower?

1 horsepower is about 745.7 watts.

How many horsepower is 1 watt?

1 watt is about 0.001341 horsepower.

What is the difference between horsepower and watts?

Both measure power, but they are commonly used in different contexts. The watt (W) is the SI unit and is widely used in electrical/device specs, while horsepower (hp) is a traditional unit often used to describe engines and machinery.

Where are horsepower and watts used?

Watts are common in electrical power/consumption (devices, appliances, lighting). Horsepower is commonly used for mechanical power (engines, pumps, compressors, machinery).

Why does 1 horsepower equal 745.7 watts?

Because horsepower (hp) is defined in terms of watts. In particular, 1 mechanical hp is about 745.7 W, so converting to watts uses that fixed definition.