Horsepower to Milliwatts Converter
1 horsepower (hp) equals 745,699.871582 milliwatts (mW).
1 horsepower = 745,699.8716 milliwatts
How to convert horsepower to milliwatts
mW = hp × 745,699.871582
To convert horsepower to milliwatts, multiply the number of horsepower by 745,699.871582.
Example: 10 hp to mW
- Start with the value in horsepower: 10 hp.
- Multiply by 745,699.871582: 10 × 745,699.871582 = 7,456,998.716.
- Result: 10 horsepower = 7,456,998.716 milliwatts.
Going the other way, 1 milliwatt = 0.000001341022 horsepower, so to convert milliwatts back to horsepower you divide by the same number. See milliwatts to horsepower.
Horsepower to milliwatts conversion table
| Horsepower (hp) | Milliwatts (mW) |
|---|---|
| 0.5 hp | 372,849.9358 mW |
| 1 hp | 745,699.8716 mW |
| 2 hp | 1,491,399.743 mW |
| 3 hp | 2,237,099.615 mW |
| 4 hp | 2,982,799.486 mW |
| 5 hp | 3,728,499.358 mW |
| 6 hp | 4,474,199.229 mW |
| 7 hp | 5,219,899.101 mW |
| 8 hp | 5,965,598.973 mW |
| 9 hp | 6,711,298.844 mW |
| 10 hp | 7,456,998.716 mW |
| 11 hp | 8,202,698.587 mW |
| 12 hp | 8,948,398.459 mW |
| 13 hp | 9,694,098.331 mW |
| 14 hp | 10,439,798.2 mW |
| 15 hp | 11,185,498.07 mW |
| 16 hp | 11,931,197.95 mW |
| 17 hp | 12,676,897.82 mW |
| 18 hp | 13,422,597.69 mW |
| 19 hp | 14,168,297.56 mW |
| 20 hp | 14,913,997.43 mW |
| 25 hp | 18,642,496.79 mW |
| 30 hp | 22,370,996.15 mW |
| 40 hp | 29,827,994.86 mW |
| 50 hp | 37,284,993.58 mW |
| 75 hp | 55,927,490.37 mW |
| 100 hp | 74,569,987.16 mW |
| 250 hp | 186,424,967.9 mW |
| 500 hp | 372,849,935.8 mW |
| 1,000 hp | 745,699,871.6 mW |
What is a horsepower?
The horsepower (mechanical or imperial horsepower) is 550 foot-pounds of work per second, about 745.7 watts.
What is a milliwatt?
The milliwatt is used for laser pointers (under 5 mW for safety class 3R), radio transmitters and small electronics.
Convert horsepower to other units
- Horsepower to watts
- Horsepower to kilowatts
- Horsepower to BTUs per hour
- Horsepower to megawatts
- Horsepower to metric horsepower
- Horsepower to tons of refrigeration
- Horsepower to gigawatts
- Horsepower to kilovolt-amperes
- Horsepower to volt-amperes
- Horsepower to kilocalories per hour
- All horsepower conversions →
Convert other units to milliwatts
- Watts to milliwatts
- Kilowatts to milliwatts
- BTUs per hour to milliwatts
- Megawatts to milliwatts
- Metric horsepower to milliwatts
- Tons of refrigeration to milliwatts
- Gigawatts to milliwatts
- Kilovolt-amperes to milliwatts
- Volt-amperes to milliwatts
- Kilocalories per hour to milliwatts
- All milliwatt conversions →
Frequently asked questions
How many milliwatts are in a horsepower?
One horsepower is 745,699.8716 milliwatts.
How many horsepower are in a milliwatt?
One milliwatt is 0.000001341022 horsepower.
What is the formula to convert horsepower to milliwatts?
mW = hp × 745,699.871582.