Microwatts to Horsepower Converter
Enter the power in microwatts below to convert it to horsepower.
Convert Microwatts to Horsepower (hp)
Enter a value in microwatts (µW) to convert to horsepower (hp) (hp).
Microwatt to Horsepower Conversion Table
Table showing various microwatt measurements converted to horsepower. Click any preset value or arrow to load it into the converter.
| Microwatts (µW) | Horsepower (hp) (hp) |
|---|---|
| 1 µW | 1.341022e-9 hp |
| 10 µW | 0.000000013 hp |
| 100 µW | 0.000000134 hp |
| 1,000 µW | 0.000001341 hp |
| 10,000 µW | 0.00001341 hp |
| 100,000 µW | 0.000134102 hp |
| 1,000,000 µW | 0.001341 hp |
| 5,000,000 µW | 0.0067051 hp |
| 10,000,000 µW | 0.0134102 hp |
| 25,400,000 µW | 0.034062 hp |
How to Convert Microwatts to Horsepower
To convert microwatts to horsepower, multiply the power by the following conversion ratio: 1.341022e-9 horsepower/microwatt.
Since one microwatt is equal to 1.341022e-9 horsepower, you can use this simple formula to convert:
The power in horsepower is equal to the power in microwatts multiplied by 1.341022e-9.
For example, here's how to convert 5 microwatts to horsepower using the formula above.
How Many Horsepower Are in a Microwatt?
There are 1.341022e-9 horsepower in a microwatt, which is why we use this value in the formula above.
Our microwatt to horsepower calculator automatically converts your power measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Microwatts and horsepower are both units used to measure power. Keep reading to learn more about each unit.
What Is a Microwatt?
A microwatt is a unit of power equal to 1/1,000,000 of a watt (0.000001 W). One-millionth of a Watt. [1]
The microwatt is classified as a metric and SI-compatible unit of power. Microwatts can be abbreviated as µW; for example, 1 microwatt can be written as 1 µW.
In the metric system, "micro" is the standard SI prefix for millionths, or 10⁻⁶. This makes the microwatt (µW) a convenient decimal multiple of the watt (W).
In practice, microwatts (µW) are widely used across fine-tolerance laboratory, analytical, and micro-scale power measurements within SI metric workflows, engineering documentation, and technical data sheets.
What Is a Horsepower?
A horsepower is a unit of power equal to 745.6998716 watts (W), the base unit for power. Imperial mechanical horsepower (550 ft·lbf/s ≈ 745.7 W). [2]
The horsepower is classified as a US customary and imperial unit of power. Horsepower can be abbreviated as hp; for example, 1 horsepower can be written as 1 hp.
When working with horsepower (hp) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, horsepower (hp) are widely used across standard power applications within US customary and imperial workflows, engineering documentation, and technical data sheets.
When converting power between microwatts (µW) and horsepower (hp), keep full floating-point precision (1 µW = 1.341022e-9 hp; 1 hp = 745,699,871.58227 µW) during intermediate calculations and round only the final horsepower figure to match your instrument tolerance.
More Microwatt & Horsepower Conversions
Need to calculate in the opposite direction? Use our horsepower (hp) to microwatts calculator to switch your starting unit immediately. You can also explore related tools such as converting horsepower (hp) to microwatts, converting watts to horsepower (hp), or converting kilowatts to horsepower (hp).
Convert from Microwatts
Frequently Asked Questions
References
- [1]NIST SP 811 StandardNIST SP 811 (NIST SP 811 App. B.9 (Power & Radiant Flux))·Power Metrology Standard — Microwatts (µW) to Horsepower (hp) (hp)
- [2]NIST CUU SpecificationNIST CUU (Derived SI Unit: Watt (W))·Unit Specifications: Microwatt (µW) & Horsepower (Mechanical) (hp)
- [3]BIPM ReferenceBIPM (SI Brochure (9th Ed.) — Power)·Conversion Factors & Mathematical Basis (µW to hp)