Watt to Horsepower Converter

Convert watt to horsepower easily (SI to Imperial)

Watt to Horsepower Conversion
Watt (W) SI Base
Horsepower (hp) Imperial Mechanical
Common Power Values
Power Equivalents
1 Horsepower (hp) = 745.7 Watts
1 Kilowatt (kW) = 1.341 Horsepower
1 BTU per hour = 0.293 Watts
1 Ton of Refrigeration = 3.517 kW
Conversion Result
1 W = 0.001341 hp
1 W = 0.0013410220888438 hp
Exact Value
0.0013410220888438
Rounded
0
SI to Imperial Conversion
SI ↔ Imperial
Base ↔ Mechanical
Unit Comparison
From Unit
Watt (W)
System: SI
Category: Base
To Unit
Horsepower (hp)
System: Imperial
Category: Mechanical
Quick Reference
1 W = In Other Units
0.001000 kW
0.000001 MW
0.000000 GW
0.001341 hp
0.001360 PS
3.412142 BTU/h
0.056869 BTU/min
0.000948 BTU/s
0.238846 cal/s
859.845228 cal/h
0.000284 TR
44.253729 ft·lb/min
0.737562 ft·lb/s

Related Power Conversions

1 PS
0.99 hp
M I
5000 W
221268.64 ft·lb/min
S I
50 cal/h
0 hp
M I
10 W
0.01 kW
S S
5 W
17.06 BTU/h
S I
1 W
0 BTU/s
S I
2000 W
6824.28 BTU/h
S I
25 ft·lb/min
0 hp
I I
500 BTU/min
11.79 hp
I I
250 W
0 MW
S S

Watt to Horsepower Converter | Power Converter

Convert 1 watt to horsepower. 1 watt = 0.0013 horsepower. Easy power conversion calculator for w to hp. Accurate results for mechanical, thermal, and electrical power conversion.

Watt to Horsepower Conversion

Convert watt to horsepower easily with our accurate power conversion calculator. Whether you're working on Base to Mechanical applications or need to understand power measurements in different units, our tool provides instant results.

Conversion Formula

1 W = 0.0013410220888438 hp

To convert watt to horsepower, multiply the watt value by 0.0013410220888438.

Common Watt to Horsepower Conversions

Watt (W) = Horsepower (hp)
1 0.0013
5 0.0067
10 0.0134
25 0.0335
50 0.0671
100 0.1341
250 0.3353
500 0.6705
1000 1.341
1500 2.0115
2000 2.682

Understanding Watt and Horsepower

Watt (W)

The watt is a unit of power in the SI system, used for base measurements.

• SI base unit of power, named after James Watt

• Defined as 1 joule per second (1 W = 1 J/s)

• Used for light bulbs, small appliances, electronics

• Standard unit for electrical power worldwide

Horsepower (hp)

The horsepower is a unit of power in the Imperial system, used for mechanical measurements.

• Traditional unit for automotive engines

• Used in boat and motorcycle specifications

• Common for agricultural and construction equipment

• Still widely used in United States and United Kingdom

SI to Imperial Conversion

You are converting from a si unit to a imperial unit. This conversion is commonly needed when:

  • Comparing international product specifications
  • Working with equipment from different countries
  • Converting engineering calculations between systems
  • Understanding technical documentation from other regions
  • Meeting international standards and regulations

Practical Examples

Everyday Use
  • • A small appliance might use 0.13410220888438 hp
  • • A typical household device: 0.6705110444219 hp
  • • An industrial machine: 6.705110444219 hp
  • • A large power system: 134.10220888438 hp
Industrial & Professional Use
  • • Engineering calculations and designs
  • • Equipment specification sheets
  • • International standards compliance
  • • Technical documentation preparation
  • • Cross-border project planning

Conversion Tips

Quick Mental Calculation

For approximate conversions, remember these quick multipliers:

  • For approximate conversion: Multiply by 0
  • 10 W ≈ 0 hp
  • 100 W ≈ 0.1 hp
For Precise Calculations

Always use our converter tool or the exact conversion factor:

1 W = 0.0013410220888438 hp

Need Other Conversions?

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