Convert Electrical Horsepower to Microwatts
Convert Electrical Horsepower (hp(E)) to Microwatts (µW) instantly and accurately.
Conversion Formula
µW = hp(E) × 746000000
About Electrical Horsepower
The electrical horsepower (hp(E)) is defined as exactly 746 W - the US NEMA rounding used on electric motor nameplates. It differs from mechanical hp (745.7 W) by only 0.04%. Every NEMA-rated motor in the US carries a horsepower nameplate: a '5 hp motor' delivers 5 × 746 = 3,730 W. NEC motor branch-circuit sizing tables, overload relay selection, and starter ratings are all based on hp(E). Despite global kW adoption, US industrial motor infrastructure remains standardised in electrical horsepower. 1 hp(E) = 746 W.
About Microwatts
A microwatt (µW) is 10⁻⁶ W - the operational power band for autonomous IoT sensors and energy-harvesting wearables. Quartz oscillators in microcontrollers consume 1-10 µW; thermoelectric wearables harvesting body heat produce 10-100 µW. NFC tags derive ~10-200 µW from the reader field. Cochlear implants and implantable glucose sensors operate at microwatt levels to minimise tissue heating. 1 µW = 10⁻⁶ W.
Quick Reference Table
| Electrical Horsepower (hp(E)) | Microwatts (µW) |
|---|---|
| 1 hp(E) | 746000000 µW |
| 2 hp(E) | 1.492 × 109 µW |
| 5 hp(E) | 3.73 × 109 µW |
| 10 hp(E) | 7.46 × 109 µW |
| 25 hp(E) | 1.865 × 1010 µW |
| 50 hp(E) | 3.73 × 1010 µW |
| 100 hp(E) | 7.46 × 1010 µW |