Table of decibel values

- a table or chart of deciBels against Power and Voltage or Current Ratios.

The decibel is widely used in radio and electronics design calculations. When undertaking electronics or RF design and development it is often necessary to compare the value of two parameters. It is then possible to alter the electronics design to match the requirements. As values in electronics circuits may vary quite widely, it is often convenient to use a logarithmic scale such as the decibel (dB).

Decibels (dB)	Power Ratio	Current or Voltage Ratio
0.1	1.023	1.012
0.2	1.047	1.023
0.3	1.072	1.035
0.4	1.096	1.047
0.5	1.122	1.059
0.6	1.148	1.072
0.7	1.175	1.084
0.8	1.202	1.096
0.9	1.230	1.109
1.0	1.259	1.122
2.0	1.585	1.259
3.0	1.995	1.413
4.0	2.512	1.585
5.0	3.162	1.778
6.0	3.981	1.995
7.0	5.012	2.239
8.0	6.310	2.512
9.0	7.943	2.818
10	10.0	3.162
20	10²	10.0
30	10³	31.62
40	10²	100.0
50	10⁵	316.2
60	10⁶	1000.0
70	10⁷	3162.3
80	10⁸	10000
90	10⁹	31623
10	10¹⁰	100000