dB -> 倍数 換算表 |
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計算式 |
電圧比 = 10(dB/20) |
|
電力比 = 10(dB/10) |
|
dB |
電圧比 |
電力比 |
100.0 |
105 |
1010 |
90.0 |
31623 |
109 |
80.0 |
104 |
108 |
70.0 |
3162.3 |
107 |
60.0 |
103 |
106 |
50.0 |
316.23 |
105 |
40.0 |
102 |
104 |
30.0 |
31.623 |
103 |
20.0 |
101 |
102 |
10.0 |
3.1623 |
101 |
9.0 |
2.81838 |
7.94328 |
8.0 |
2.51189 |
6.30957 |
7.0 |
2.23872 |
5.01187 |
6.0 |
1.99526 |
3.98107 |
5.0 |
1.77828 |
3.16228 |
4.0 |
1.58489 |
2.51189 |
3.0 |
1.41254 |
1.99526 |
2.0 |
1.25893 |
1.58489 |
1.0 |
1.12202 |
1.25893 |
0.9 |
1.10917 |
1.23027 |
0.8 |
1.09648 |
1.20226 |
0.7 |
1.08393 |
1.17490 |
0.6 |
1.07152 |
1.14815 |
0.5 |
1.05925 |
1.12202 |
0.4 |
1.04713 |
1.09648 |
0.3 |
1.03514 |
1.07152 |
0.2 |
1.02329 |
1.04713 |
0.1 |
1.01158 |
1.02329 |
0.0 |
1.00000 |
1.00000 |
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|
dB |
電圧比 |
電力比 |
-0.0 |
1.00000 |
1.00000 |
-0.1 |
0.98855 |
0.97724 |
-0.2 |
0.97724 |
0.95499 |
-0.3 |
0.96605 |
0.93325 |
-0.4 |
0.95499 |
0.91201 |
-0.5 |
0.94406 |
0.89125 |
-0.6 |
0.93325 |
0.87096 |
-0.7 |
0.92257 |
0.85114 |
-0.8 |
0.91201 |
0.83176 |
-0.9 |
0.90157 |
0.81283 |
-1.0 |
0.89125 |
0.79433 |
-2.0 |
0.79433 |
0.63096 |
-3.0 |
0.70795 |
0.50119 |
-4.0 |
0.63096 |
0.39811 |
-5.0 |
0.56234 |
0.31623 |
-6.0 |
0.50119 |
0.25119 |
-7.0 |
0.44668 |
0.19953 |
-8.0 |
0.39811 |
0.15849 |
-9.0 |
0.35481 |
0.12589 |
-10.0 |
0.31623 |
10-1 |
-20.0 |
10-1 |
10-2 |
-30.0 |
0.031623 |
10-3 |
-40.0 |
10-2 |
10-4 |
-50.0 |
0.0031623 |
10-5 |
-60.0 |
10-3 |
10-6 |
-70.0 |
0.00031623 |
10-7 |
-80.0 |
10-4 |
10-8 |
-90.0 |
0.000031623 |
10-9 |
-100.0 |
10-5 |
10-10 |
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