Watts to Horsepower (US) Conversion
to
Watts
W
Result
Calculation steps
About this conversion
Intro
This page converts watts (W) to horsepower (us) (hp). Use it when you have a power value in watts and need the equivalent in horsepower (us) for specs, calculations, or engineering documentation.
Definition
Power is the rate of doing work or transferring energy. Quick context on horsepower (us): Horsepower (hp) is a common unit for rating engines and motors, especially in automotive and mechanical contexts. It provides an intuitive “engine power” scale compared to watts or kilowatts.
Formula: Watts to Horsepower (US)
horsepower (us) = watts × 0.00134102209
This converter uses watts as a consistent base. Multiply your watts value by the conversion ratio to get horsepower (us). General form: horsepower (us) = watts × (1 W per watt) ÷ (745.69987158227 W per horsepower).
Worked examples
Example 1: 100 W → 0.13410220896 hp
- Start with 100 W.
- Multiply by the conversion ratio (0.00134102209).
- 100 × 0.00134102209 = 0.13410220896 hp.
Example 2: 750 W → 1.005766567196 hp
- Start with 750 W.
- Multiply by the conversion ratio (0.00134102209).
- 750 × 0.00134102209 = 1.005766567196 hp.
Example 3: 2000 W → 2.68204417919 hp
- Start with 2000 W.
- Multiply by the conversion ratio (0.00134102209).
- 2000 × 0.00134102209 = 2.68204417919 hp.
Quick reference table
| From | To |
|---|---|
| 1 W | 0.00134102209 hp |
| 10 W | 0.013410220896 hp |
| 50 W | 0.06705110448 hp |
| 100 W | 0.13410220896 hp |
| 500 W | 0.670511044798 hp |
| 1000 W | 1.341022089595 hp |
| 2000 W | 2.68204417919 hp |
| 5000 W | 6.705110447975 hp |
FAQs
How do I convert watts to horsepower (us)?
Use the formula: horsepower (us) = watts × 0.00134102209. Enter a value above and the converter will calculate it instantly.
How many horsepowers are in 1 watt?
1 watt = 0.00134102209 horsepowers.
What is Horsepower (US) (hp) used for?
Horsepower (hp) is a common unit for rating engines and motors, especially in automotive and mechanical contexts. It provides an intuitive “engine power” scale compared to watts or kilowatts.
Is horsepower (us) a bigger unit than watts?
For this direction (Watts → Horsepower (US)), the numeric result usually gets smaller because 1 watt is less than 1 horsepower.
What does the symbol “hp” mean in this result?
“hp” is the standard symbol for horsepower (us). Your converted value is expressed in horsepower (us) (hp).
Can I convert watts to energy (like joules or BTUs)?
Power is energy per time. If you also know the time duration, you can convert to energy using: energy = power × time (for example, watt-seconds = joules). This page specifically converts power units (Watts → Horsepower (US)).