![[dBV and dBp comparison plot]](Images/dB_plot.png)
Forgetting your dB gains? Here is a snazzy table for referencing. Happy logging!
| dB | Voltage Gain | Power Gain |
|---|---|---|
| -20 | 0.100 | 0.0100 |
| -18 | 0.126 | 0.0158 |
| -15 | 0.178 | 0.0316 |
| -12 | 0.251 | 0.0631 |
| -10 | 0.316 | 0.1000 |
| -9 | 0.355 | 0.1259 |
| -6 | 0.501 | 0.2512 |
| -3 | 0.708 | 0.5012 |
| -2 | 0.794 | 0.6310 |
| -1 | 0.891 | 0.7943 |
| -0.5 | 0.944 | 0.8913 |
| -0.25 | 0.971 | 0.9441 |
| -0.1 | 0.989 | 0.9772 |
| 0 | 1.000 | 1.0000 |
| 0.1 | 1.012 | 1.0233 |
| 0.25 | 1.030 | 1.0593 |
| 0.5 | 1.059 | 1.1220 |
| 1 | 1.122 | 1.2589 |
| 2 | 1.259 | 1.5849 |
| 3 | 1.413 | 1.9953 |
| 4 | 1.585 | 2.5119 |
| 5 | 1.778 | 3.1623 |
| 6 | 1.995 | 3.9811 |
| 9 | 2.818 | 7.9433 |
| 10 | 3.162 | 10.0000 |
| 12 | 3.981 | 15.8489 |
| 15 | 5.623 | 31.6228 |
| 18 | 7.943 | 63.0957 |
| 20 | 10.000 | 100.0000 |
| 21 | 11.220 | 125.8925 |
| 24 | 15.849 | 251.1886 |
| 27 | 22.387 | 501.1872 |
| 30 | 31.623 | 1000.0000 |
| 33 | 44.668 | 1995.2623 |
| 36 | 63.096 | 3981.0717 |
| 39 | 89.125 | 7943.2823 |
| 40 | 100.000 | 10,000.0000 |
| 42 | 125.893 | 15,848.9319 |
| 45 | 177.828 | 31,622.7766 |
| 48 | 251.189 | 63,095.7344 |
| 50 | 316.228 | 100,000.0000 |
| 60 | 1,000 | 1,000,000 [Mega] |
| 70 | 3,162.278 | 10,000,000 [Mega] |
| 80 | 10,000.000 | 100,000,000 [Mega] |
| 90 | 31,622.777 | 1,000,000,000 [Giga] |
| 100 | 100,000.000 | 10,000,000,000 [Giga] |
| 110 | 316,227.766 | 100,000,000,000 [Giga] |
| 120 | 1,000,000 [Mega] | 1,000,000,000,000 [Tera] |
Voltage Gain:
$$\displaystyle \text{Gain}_{dBV} = 20 \log_{10}\bigl(\text{Gain}_{\text{Linear Voltage}}\bigr)$$
Power Gain:
$$\displaystyle \text{Gain}_{dB} = 10 \log_{10}\bigl(\text{Gain}_{\text{Linear Power}}\bigr)$$