Live Converter
Convert Power Online
Enter your value above to convert watts to horsepower (electric) units or vice versa.
Real-World Examples
The Uses of Watts to Horsepower (Electric) units Conversion
Watt-based circuit or facility power figures often need to be converted into electric horsepower when selecting or comparing US electric motor nameplate ratings.
Translating Watt-Based Demand to Electric Horsepower Ratings
Electricians who calculate a circuit's total power draw in watts convert it into electric horsepower to match the standard unit used on US electric motor nameplates.
Scaling Facility Power Budgets to Motor Shopping
Facility engineers who know an available electrical capacity in watts convert it into electric horsepower to select electric motors of an appropriate rated size.
Checking Motor Catalog Specs Against Electrical Supply
Industrial buyers who know a facility's available power supply in watts convert it into electric horsepower to confirm a catalog-listed motor fits within that supply.
Quick Reference
Comprehensive Conversion Table
Our quick table gives you instant results, so you don't have to calculate these common values manually.
| Conversion | Formula | Result (hp(E)) |
|---|---|---|
| 74.6 W to hp(E) | 74.6 × 0.0013404825737265416 | 0.10 hp(E) |
| 373 W to hp(E) | 373 × 0.0013404825737265416 | 0.50 hp(E) |
| 746 W to hp(E) | 746 × 0.0013404825737265416 | 1.00 hp(E) |
| 1,492 W to hp(E) | 1,492 × 0.0013404825737265416 | 2.00 hp(E) |
| 3,730 W to hp(E) | 3,730 × 0.0013404825737265416 | 5.00 hp(E) |
| 7,460 W to hp(E) | 7,460 × 0.0013404825737265416 | 10.00 hp(E) |
| 37,300 W to hp(E) | 37,300 × 0.0013404825737265416 | 50.00 hp(E) |
| 74,600 W to hp(E) | 74,600 × 0.0013404825737265416 | 100.00 hp(E) |
| 373,000 W to hp(E) | 373,000 × 0.0013404825737265416 | 500.00 hp(E) |
Got Questions?
Frequently Asked Questions
What's a quick way to size up what 1 watt means in horsepower (electric) units?
It helps to know that 1 watt comes out to roughly 0.00134048 horsepower (electric) units, which puts the size of a single watt into perspective against the horsepower (electric).
How many watts make up 1 horsepower (electric)?
It takes exactly 746 watts to equal 1 horsepower (electric), a ratio worth knowing when working at the US electric motor nameplate rating standards scale.
Why are US electric motors rated in electric horsepower?
Electric horsepower is the US electrical industry's standardized nameplate unit, defined at exactly 746 watts for consistency across electric motor manufacturing and labeling.
How many watts does it take to add up to 1 electric horsepower?
It takes exactly 746 watts combined to equal a single electric horsepower, a simple, standardized figure used throughout US motor nameplate ratings.