Milliwatts: conversions & definition
Milliwatts (mW) represent power. One unit equals 10^-3 W. One watt represents energy transfer at one joule per second.
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Each row converts one mW. Open a converter to enter any value and see its formula, worked example and reference table. Results below are rounded to 10 significant digits.
| Convert to | Equivalent value | Calculator |
|---|---|---|
| Watts (W) | ≈ 0.001 | Convert mW to W |
| Kilowatts (kW) | ≈ 0.000001 | Convert mW to kW |
| Microwatts (µW) | ≈ 1,000 | Convert mW to µW |
| Megawatts (MW) | ≈ 1e-9 | Convert mW to MW |
| Nanowatts (nW) | ≈ 1,000,000 | Convert mW to nW |
| Gigawatts (GW) | ≈ 1e-12 | Convert mW to GW |
| Centiwatts (cW) | ≈ 0.1 | Convert mW to cW |
| Deciwatts (dW) | ≈ 0.01 | Convert mW to dW |
| Hectowatts (hW) | ≈ 0.00001 | Convert mW to hW |
| Decawatts (daW) | ≈ 0.0001 | Convert mW to daW |
| Picowatts (pW) | ≈ 1,000,000,000 | Convert mW to pW |
| Terawatts (TW) | ≈ 1e-15 | Convert mW to TW |
| Femtowatts (fW) | ≈ 1e+12 | Convert mW to fW |
| Petawatts (PW) | ≈ 1e-18 | Convert mW to PW |
| Attowatts (aW) | ≈ 1e+15 | Convert mW to aW |
| Exawatts (EW) | ≈ 1e-21 | Convert mW to EW |
| Zeptowatts (zW) | ≈ 1e+18 | Convert mW to zW |
| Zettawatts (ZW) | ≈ 1e-24 | Convert mW to ZW |
| Yoctowatts (yW) | ≈ 1e+21 | Convert mW to yW |
| Yottawatts (YW) | ≈ 1e-27 | Convert mW to YW |
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Choose units that represent the same quantity and preserve the measurement conditions. A scale conversion changes the number and unit together; it does not change the physical amount or improve the accuracy of your measurement.
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