Convert Watts (W) to Horsepower (hp)
Enter a value below to convert Watts (W) to Horsepower (hp).
Conversion:
1 Watts (W) = 0.0013410220888 Horsepower (hp)
How to Convert Watts (W) to Horsepower (hp)
1 w = 0.0013410220888 hp
1 hp = 745.699872 w
Example: convert 15 Watts (W) to Horsepower (hp):
25 w = 0.033525552221 hp
Watts (W) to Horsepower (hp) Conversion Table
| Watts (W) | Horsepower (hp) |
|---|---|
| 0.01 w | 0.000013410220888 hp |
| 0.1 w | 0.00013410220888 hp |
| 1 w | 0.0013410220888 hp |
| 2 w | 0.0026820441777 hp |
| 3 w | 0.0040230662665 hp |
| 5 w | 0.0067051104442 hp |
| 10 w | 0.013410220888 hp |
| 20 w | 0.026820441777 hp |
| 50 w | 0.067051104442 hp |
| 100 w | 0.13410220888 hp |
| 1000 w | 1.3410220888 hp |
Watts (W)
Definition
A watt (W) is the SI unit of power, defined as one joule per second (1 W = 1 J/s). It measures the rate of energy transfer or conversion.
History
The watt was named after James Watt, the Scottish inventor who improved the steam engine in the 18th century. It was adopted as the SI unit of power in 1960 by the General Conference on Weights and Measures.
Current use
Watts are universally used to measure electrical power consumption (light bulbs, appliances), mechanical output, and energy transfer rates. Electricity bills, device ratings, and power plant capacities all reference watts.
Horsepower (hp)
Definition
Horsepower (hp) is a unit of power originally defined by James Watt as approximately 550 foot-pounds per second or about 745.7 watts.
History
James Watt coined the term 'horsepower' in the 1780s to market his improved steam engines by comparing their output to draft horses. Despite being over 240 years old, the unit remains in widespread use.
Current use
Horsepower is the standard unit for rating internal combustion engines, electric motors, and machinery in the United States, United Kingdom, and many other countries. Car specifications, lawnmowers, and industrial pumps all use hp.