milliwatt | 1 mW | 2 mW | 3 mW | 4 mW | 5 mW | 6 mW | 7 mW | 8 mW | 9 mW | 10 mW | 11 mW | 12 mW | 13 mW | 14 mW | 15 mW | 16 mW | 17 mW | 18 mW | 19 mW | 20 mW | 21 mW | 22 mW | 23 mW | 24 mW | 25 mW | 26 mW | 27 mW | 28 mW | 29 mW | 30 mW | 31 mW | 32 mW | 33 mW | 34 mW | 35 mW | 36 mW | 37 mW | 38 mW | 39 mW | 40 mW | 41 mW | 42 mW | 43 mW | 44 mW | 45 mW | 46 mW | 47 mW | 48 mW | 49 mW | 50 mW | 51 mW | 52 mW | 53 mW | 54 mW | 55 mW | 56 mW | 57 mW | 58 mW | 59 mW | 60 mW | 61 mW | 62 mW | 63 mW | 64 mW | 65 mW | 66 mW | 67 mW | 68 mW | 69 mW | 70 mW | 71 mW | 72 mW | 73 mW | 74 mW | 75 mW | 76 mW | 77 mW | 78 mW | 79 mW | 80 mW | 81 mW | 82 mW | 83 mW | 84 mW | 85 mW | 86 mW | 87 mW | 88 mW | 89 mW | 90 mW | 91 mW | 92 mW | 93 mW | 94 mW | 95 mW | 96 mW | 97 mW | 98 mW | 99 mW | 100 mW |
watt | 0.001 W | 0.002 W | 0.003 W | 0.004 W | 0.005 W | 0.006 W | 0.007 W | 0.008 W | 0.009 W | 0.01 W | 0.011 W | 0.012 W | 0.013 W | 0.014 W | 0.015 W | 0.016 W | 0.017 W | 0.018 W | 0.019 W | 0.02 W | 0.021 W | 0.022 W | 0.023 W | 0.024 W | 0.025 W | 0.026 W | 0.027 W | 0.028 W | 0.029 W | 0.03 W | 0.031 W | 0.032 W | 0.033 W | 0.034 W | 0.035 W | 0.036 W | 0.037 W | 0.038 W | 0.039 W | 0.04 W | 0.041 W | 0.042 W | 0.043 W | 0.044 W | 0.045 W | 0.046 W | 0.047 W | 0.048 W | 0.049 W | 0.05 W | 0.051 W | 0.052 W | 0.053 W | 0.054 W | 0.055 W | 0.056 W | 0.057 W | 0.058 W | 0.059 W | 0.06 W | 0.061 W | 0.062 W | 0.063 W | 0.064 W | 0.065 W | 0.066 W | 0.067 W | 0.068 W | 0.069 W | 0.07 W | 0.071 W | 0.072 W | 0.073 W | 0.074 W | 0.075 W | 0.076 W | 0.077 W | 0.078 W | 0.079 W | 0.08 W | 0.081 W | 0.082 W | 0.083 W | 0.084 W | 0.085 W | 0.086 W | 0.087 W | 0.088 W | 0.089 W | 0.09 W | 0.091 W | 0.092 W | 0.093 W | 0.094 W | 0.095 W | 0.096 W | 0.097 W | 0.098 W | 0.099 W | 0.1 W |
The milliwatt (mW) is equal to one thousandth (10−3) of a watt. A typical laser pointer outputs about five milliwatts of light power, whereas a typical hearing aid for people uses less than one milliwatt. Audio signals and other electronic signal levels are often measured in dBm, referenced to one milliwatt.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
milliwatt | mW | = 10-3 W | = 10-3 W | Metric system SI |
milliwatts | watts | milliwatts | watts |
---|---|---|---|
1 | = 0.001 | 6 | = 0.006 |
2 | = 0.002 | 7 | = 0.007 |
3 | = 0.003 | 8 | = 0.008 |
4 | = 0.004 | 9 | = 0.009 |
5 | = 0.005 | 10 | = 0.01 |
The watt (symbol: W) is a derived unit of power in the International System of Units (SI) defined as 1 joule per second and can be used to quantify the rate of energy transfer. Power has dimensions of ML2T-3.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
watt | W | The power which in one second of time gives rise to one joule of energy. | = 1 W = 1 J/s = 1 N·m/s = 1 kg·m2/s3 | Metric system SI |
watts | milliwatts | watts | milliwatts |
---|---|---|---|
1 | = 1000 | 6 | = 6000 |
2 | = 2000 | 7 | = 7000 |
3 | = 3000 | 8 | = 8000 |
4 | = 4000 | 9 | = 9000 |
5 | = 5000 | 10 | = 10000 |
milliwatts | watts |
---|---|
1 | = 0.001 |
1 000 | = 1 |
Symbol | Definition |
---|---|
≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |