ENERGY
Power
Rate of work, heat transfer and machinery output.
Try a decimal, 1e-9, 1/3, or 5 1/2.
Result0.001 W1 mW = 0.001 W
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mW to W Converter
Convert milliwatt (mW) to watt (W). Enter a value for an instant result, or use the examples and reverse conversion below.
520units ready to convert
HOW IT IS CALCULATED
Convert through watt
Enter a milliwatt value to calculate watt with full internal precision before display rounding.
Display PrecisionAuto · 6 significant digits
Auto trims unnecessary zeroes and uses scientific notation for extreme magnitudes. Use Digits to set the display precision; calculations retain full precision.
QUICK REFERENCE
All units in this quantity
| Unit | Symbol | Converted value |
|---|---|---|
| milliwattfrom mW | mW | 1 |
| wattfrom mW | W | 0.001 |
| kilowattfrom mW | kW | 0.000001 |
| megawattfrom mW | MW | 0.000000001 |
| gigawattfrom mW | GW | 1e-12 |
| mechanical horsepowerfrom mW | hp | 0.00000134102 |
| metric horsepowerfrom mW | PS | 0.00000135962 |
| electrical horsepowerfrom mW | hp(E) | 0.00000134048 |
| boiler horsepowerfrom mW | hp(S) | 0.000000101942 |
| foot pound-force per secondfrom mW | ft·lbf/s | 0.000737562 |
| British thermal unit per hourfrom mW | BtuIT/h | 0.00341214 |
| ton of refrigerationfrom mW | TR | 0.000000284345 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
mW to W Conversion Reference
Milliwatt (mW) and watt (W) are units of power. Use this page to convert in either direction.
Conversion Examples
| Milliwatt (mW) | Watt (W) |
|---|---|
| 1 mW | 0.001 W |
| 5 mW | 0.005 W |
| 10 mW | 0.01 W |
| 100 mW | 0.1 W |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
Reverse Conversion
Related Power Conversions
mW to kW (milliwatt to kilowatt)mW to MW (milliwatt to megawatt)mW to GW (milliwatt to gigawatt)mW to hp (milliwatt to mechanical horsepower)mW to PS (milliwatt to metric horsepower)mW to hp(E) (milliwatt to electrical horsepower)mW to hp(S) (milliwatt to boiler horsepower)mW to ft·lbf/s (milliwatt to foot pound-force per second)mW to BtuIT/h (milliwatt to British thermal unit per hour)mW to TR (milliwatt to ton of refrigeration)