Table of decibel values

- 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