Milliwatt to Horsepower (mechanical) Converter
Power · unit-converter
Convert Milliwatt to Horsepower (mechanical) with a fixed input and output unit, step-by-step formula line, and reference tables. Linear units use SI watt definitions; mechanical hp uses 550 ft·lbf/s; BTU/h uses the IT BTU; dBm/dBW are logarithmic relative to 1 mW and 1 W. The full Power Converter also includes PS/CV, TR, kVA/MVA, and ft·lb/s.
Calculator
From: Milliwatt (mw)
To: Horsepower (mechanical) (hp)
About Milliwatt
One milliwatt is one thousandth of a watt. Common in RF, fiber optics, and low-power electronics.
About Horsepower (mechanical)
Mechanical horsepower here is the US definition: 550 ft·lbf/s ≈ 745.70 W. Automotive and industrial specs often cite hp.
How to convert milliwatts to horsepower (mechanical, 550 ft·lb/s)
1 milliwatt is equal to 0.00000134102209 horsepower (mechanical) when both are expressed in watt-equivalents:
1 mw = (0.001 W ÷ 745.6998715822702 W) hp = 0.00000134102209 hp
Each milliwatt is defined as 0.001 W and each horsepower (mechanical) as 745.6998715822702 W in this tool, so one mw equals 0.001 ÷ 745.6998715822702 hp = 0.00000134102209 hp.
Let d(mw) be the numeric value in Milliwatt (mw), and d(hp) the value in Horsepower (mechanical) (hp). Then:
d(hp) = d(mw) × (0.001 / 745.6998715822702)
Equivalently, divide by how many mw fit into one hp (watts per hp divided by watts per mw):
d(hp) = d(mw) ÷ 745699.87158227025066
Or: horsepower (mechanical) = milliwatt ÷ 745699.87158227025066
Examples
Example #1: Convert 1 mw to horsepower (mechanical)
1 mw = 1 mw × (0.001/745.6998715822702) hp = 0.000001341 hp
1 mw = 1 mw ÷ 745699.87158227025066 = 0.000001341 hp
Intermediate watts: 0.001 W
Example #2: Convert 10 mw to horsepower (mechanical)
10 mw = 10 mw × (0.001/745.6998715822702) hp = 0.0000134102 hp
10 mw = 10 mw ÷ 745699.87158227025066 = 0.0000134102 hp
Intermediate watts: 0.01 W
Summary
To convert Milliwatt to Horsepower (mechanical), multiply the value in mw by the ratio of watts per mw divided by watts per hp. Equivalently: value_hp = value_mw × (0.001 / 745.6998715822702). Numerically, 1 mw equals 0.0000013410220895950279 hp.
Relationship context
You are converting between SI / decimal power (watts and prefixes) (Milliwatts) and mechanical power (horsepower, ft·lb/s) (Horsepower (mechanical, 550 ft·lb/s)). All linear values are mapped through watts first. The numeric factor is 1.341022e-6.
Conversion tables
| Milliwatt (mw) | Horsepower (mechanical) (hp) |
|---|---|
| 0.1 | 0.0000001341 |
| 1 | 0.000001341 |
| 2 | 0.000002682 |
| 3 | 0.0000040231 |
| 4 | 0.0000053641 |
| 5 | 0.0000067051 |
| 6 | 0.0000080461 |
| 7 | 0.0000093872 |
| 8 | 0.0000107282 |
| 9 | 0.0000120692 |
| Milliwatt (mw) | Horsepower (mechanical) (hp) |
|---|---|
| 10 | 0.0000134102 |
| 20 | 0.0000268204 |
| 30 | 0.0000402307 |
| 40 | 0.0000536409 |
| 50 | 0.0000670511 |
| 60 | 0.0000804613 |
| 70 | 0.0000938715 |
| 80 | 0.0001072818 |
| 90 | 0.000120692 |
| 100 | 0.0001341022 |