A Deciwatt (dW) equals 1/10 watt(s), a scaled unit of electrical power used for deci-scale electrical work.
Deciwatts to Milliwatts
Convert Deciwatt (dW) to Milliwatt (mW) instantly with an exact formula, conversion table, and FAQ.
Reserved for a responsive leaderboard above the conversion details.
Professional calculator style
World-scale conversion engine
30+ categories
6,500+ units
Instant results
Offline ready
Electrical calculator
Electricity Converter
Convert deciwatts (dW) to milliwatts (mW) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A Milliwatt (mW) equals 1/1,000 watt(s), a scaled unit of electrical power used for milli-scale electrical work.
mW = dW × 100
Results update instantly for Deciwatts to Milliwatts conversions.
Reserved above the conversion cards and below the converter.
Formula
mW = dW × 100
dW = mW × 0.01
Conversion table
| 1 dW | 100 mW |
| 5 dW | 500 mW |
| 10 dW | 1000 mW |
| 20 dW | 2000 mW |
| 50 dW | 5000 mW |
| 100 dW | 10000 mW |
| 500 dW | 50000 mW |
| 1000 dW | 100000 mW |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
How the formula works
Both deciwatt and milliwatt measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in deciwatts by 100 to get milliwatts. To reverse the conversion, multiply a milliwatt value by 0.01 to get back to deciwatts.
Frequently asked questions
What is Deciwatt (dW)?
A Deciwatt (dW) equals 1/10 watt(s), a scaled unit of electrical power used for deci-scale electrical work.
What is Milliwatt (mW)?
A Milliwatt (mW) equals 1/1,000 watt(s), a scaled unit of electrical power used for milli-scale electrical work.
How do I convert deciwatts to milliwatts?
Multiply the deciwatt value by 100 to get the equivalent in milliwatts. For example, 5 dW × 100 = 500 mW.
Is this conversion exact?
Yes. Both units use fixed, defined scale factors, so the factor 100 is an exact, non-rounded value.
Can I convert milliwatts back to deciwatts?
Yes. Divide the milliwatt value by 100, or multiply it by 0.01, to get deciwatts.
Reserved between the FAQ and the article so the page stays balanced.
About converting deciwatts to milliwatts
A Deciwatt (dW) equals 1/10 watt(s), a scaled unit of electrical power used for deci-scale electrical work. A Milliwatt (mW) equals 1/1,000 watt(s), a scaled unit of electrical power used for milli-scale electrical work.
Use this calculator to move between deciwatts and milliwatts accurately for homework, engineering, billing, or everyday electricity calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.