watt | 1 W | 2 W | 3 W | 4 W | 5 W | 6 W | 7 W | 8 W | 9 W | 10 W | 11 W | 12 W | 13 W | 14 W | 15 W | 16 W | 17 W | 18 W | 19 W | 20 W | 21 W | 22 W | 23 W | 24 W | 25 W | 26 W | 27 W | 28 W | 29 W | 30 W | 31 W | 32 W | 33 W | 34 W | 35 W | 36 W | 37 W | 38 W | 39 W | 40 W | 41 W | 42 W | 43 W | 44 W | 45 W | 46 W | 47 W | 48 W | 49 W | 50 W | 51 W | 52 W | 53 W | 54 W | 55 W | 56 W | 57 W | 58 W | 59 W | 60 W | 61 W | 62 W | 63 W | 64 W | 65 W | 66 W | 67 W | 68 W | 69 W | 70 W | 71 W | 72 W | 73 W | 74 W | 75 W | 76 W | 77 W | 78 W | 79 W | 80 W | 81 W | 82 W | 83 W | 84 W | 85 W | 86 W | 87 W | 88 W | 89 W | 90 W | 91 W | 92 W | 93 W | 94 W | 95 W | 96 W | 97 W | 98 W | 99 W | 100 W |
microwatt | 1 000 000 µW | 2 000 000 µW | 3 000 000 µW | 4 000 000 µW | 5 000 000 µW | 6 000 000 µW | 7 000 000 µW | 8 000 000 µW | 9 000 000 µW | 10 000 000 µW | 11 000 000 µW | 12 000 000 µW | 13 000 000 µW | 14 000 000 µW | 15 000 000 µW | 16 000 000 µW | 17 000 000 µW | 18 000 000 µW | 19 000 000 µW | 20 000 000 µW | 21 000 000 µW | 22 000 000 µW | 23 000 000 µW | 24 000 000 µW | 25 000 000 µW | 26 000 000 µW | 27 000 000 µW | 28 000 000 µW | 29 000 000 µW | 30 000 000 µW | 31 000 000 µW | 32 000 000 µW | 33 000 000 µW | 34 000 000 µW | 35 000 000 µW | 36 000 000 µW | 37 000 000 µW | 38 000 000 µW | 39 000 000 µW | 40 000 000 µW | 41 000 000 µW | 42 000 000 µW | 43 000 000 µW | 44 000 000 µW | 45 000 000 µW | 46 000 000 µW | 47 000 000 µW | 48 000 000 µW | 49 000 000 µW | 50 000 000 µW | 51 000 000 µW | 52 000 000 µW | 53 000 000 µW | 54 000 000 µW | 55 000 000 µW | 56 000 000 µW | 57 000 000 µW | 58 000 000 µW | 59 000 000 µW | 60 000 000 µW | 61 000 000 µW | 62 000 000 µW | 63 000 000 µW | 64 000 000 µW | 65 000 000 µW | 66 000 000 µW | 67 000 000 µW | 68 000 000 µW | 69 000 000 µW | 70 000 000 µW | 71 000 000 µW | 72 000 000 µW | 73 000 000 µW | 74 000 000 µW | 75 000 000 µW | 76 000 000 µW | 77 000 000 µW | 78 000 000 µW | 79 000 000 µW | 80 000 000 µW | 81 000 000 µW | 82 000 000 µW | 83 000 000 µW | 84 000 000 µW | 85 000 000 µW | 86 000 000 µW | 87 000 000 µW | 88 000 000 µW | 89 000 000 µW | 90 000 000 µW | 91 000 000 µW | 92 000 000 µW | 93 000 000 µW | 94 000 000 µW | 95 000 000 µW | 96 000 000 µW | 97 000 000 µW | 98 000 000 µW | 99 000 000 µW | 100 000 000 µW |
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 | microwatts | watts | microwatts |
---|---|---|---|
1 | = 1000000 | 6 | = 6000000 |
2 | = 2000000 | 7 | = 7000000 |
3 | = 3000000 | 8 | = 8000000 |
4 | = 4000000 | 9 | = 9000000 |
5 | = 5000000 | 10 | = 10000000 |
The microwatt (µW) is equal to one millionth (10−6) of a watt. Important powers that are measured in microwatts are typically stated in medical instrumentation systems such as the EEG and the ECG, in a wide variety of scientific and engineering instruments and also in reference to radio and radar receivers. Compact solar cells for devices such as calculators and watches are typically measured in microwatts.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
microwatt | µW | = 10-6 W | = 10-6 W | Metric system SI |
microwatts | watts | microwatts | watts |
---|---|---|---|
1 | = 1.0E-6 | 6 | = 6.0E-6 |
2 | = 2.0E-6 | 7 | = 7.0E-6 |
3 | = 3.0E-6 | 8 | = 8.0E-6 |
4 | = 4.0E-6 | 9 | = 9.0E-6 |
5 | = 5.0E-6 | 10 | = 1.0E-5 |
watts | microwatts |
---|---|
1 | = 1 000 000 |
1.0 × 10-6 | = 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 …) |