Horsepower to Nanowatts
Convert Horsepower to Nanowatts instantly. Free online power unit converter with exact formula, conversion table and FAQ.
Reserved for a responsive leaderboard above the conversion details.
Professional calculator style
World-scale conversion engine
Converter
Length Converter
Convert metric, imperial, and nautical distance units.
Use the converter to see the formula.
Results update instantly for Horsepower to Nanowatts conversions.
Reserved above the conversion cards and below the converter.
Formula
nW = hp × 745699871582
hp = nW × 1.34102209e-12
Conversion table
| 1 hp | 745699871582 nW |
| 5 hp | 3728499357911 nW |
| 10 hp | 7456998715823 nW |
| 20 hp | 14913997431645 nW |
| 50 hp | 37284993579114 nW |
| 100 hp | 74569987158227 nW |
| 500 hp | 372849935791135 nW |
| 1000 hp | 745699871582270 nW |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
What is the source unit in this conversion?
The source unit is the horsepower (hp). Mechanical (imperial) horsepower is a traditional unit of power used for engines and motors, defined as exactly 745.6998715822702 watts.
What is the destination unit in this conversion?
The destination unit is the nanowatt (nW). A nanowatt is 1e-09 watt units.
How do I convert horsepower to nanowatts?
Multiply the horsepower value by 745699871582 to get nanowatt. For example, 1 hp × 745699871582 = 745699871582 nW.
Is the horsepower to nanowatts conversion exact?
Yes. Both units are defined by fixed numeric relationships to the watt, so the conversion factor used here, 745699871582, is exact.
Where is this conversion commonly used?
It is used when comparing power ratings expressed in horsepower against equipment, engines, or specifications rated in nanowatts.
Can I convert nanowatts back to horsepower?
Yes. Multiply the nanowatt value by 1.34102209e-12 to get horsepower.
Reserved between the FAQ and the article so the page stays balanced.
About this conversion
This page converts horsepower (hp) into nanowatts (nW), two units used to describe power, the rate at which energy is transferred or work is done.
Mechanical (imperial) horsepower is a traditional unit of power used for engines and motors, defined as exactly 745.6998715822702 watts.
A nanowatt is 1e-09 watt units.
The formula is nW = hp × 745699871582, derived from each unit's fixed relationship to the watt, the SI unit of power.
Because both units are defined by exact numeric relationships to the watt, this conversion is exact rather than approximate.