Dbm-Volts-Watts Conversion Chart - GE MDS Master Station Technical Manual

8.2 dBm-Volts-Watts Conversion Chart

The dBm-Volts-Watts Conversion Chart below is provided as a convenience for determining the
equivalent voltage or wattage of an RF power expressed in dBm.
dBm V
+53 100.0 200W
+50 70.7
+49 64.0
+48 58.0
+47 50.0
+46 44.5
+45 40.0
+44 32.5
+43 32.0
+42 28.0
+41 26.2
+40 22.5
+39 20.0
+38 18.0
+37 16.0
+36 14.1
+35 12.5
+34 11.5
+33 10.0
+32 9.0
+31 8.0
+30 7.10
+29 6.40
+28 5.80
+27 5.00
+26 4.45
+25 4.00
+24 3.55
+23 3.20
+22 2.80
+21 2.52
+20 2.25
+19 2.00
+18 1.80
+17 1.60
+16 1.41
+15 1.25
+14 1.15
+13 1.00
+12 .90
+11 .80
+10 .71
+9 .64
+8 .58
+7 .500
+6 .445
+5 .400
+4 .355
+3 .320
+2 .280
+1 .252
MDS 05-6399A01, Rev. E
Table 8-1. dBm–Volts–Watts Conversion Chart
Po dBm V Po
0 .225 1.0mW
100W -1 .200 .80mW
80W -2 .180 .64mW
64W -3 .160 .50mW
50W -4 .141 .40mW
40W -5 .125 .32mW
32W -6 .115 .25mW
25W -7 .100 .20mW
20W -8 .090 .16mW
16W -9 .080 .125mW
12.5W -10 .071 .10mW
10W -11 .064
8W -12 .058
6.4W -13 .050
5W -14 .045
4W -15 .040
3.2W -16 .0355
2.5W
2W
dBm mV Po
1.6W
-17 31.5
1.25W
-18 28.5
1.0W
-19 25.1
800mW
-20 22.5 .01mW
640mW
-21 20.0
500mW
-22 17.9
400mW
-23 15.9
320mW
-24 14.1
250mW
-25 12.8
200mW
-26 11.5
160mW
-27 10.0
125mW
-28 8.9
100mW
-29 8.0
80mW
-30 7.1 .001mW
64mW
-31 6.25
50mW
-32 5.8
40mW
-33 5.0
32mW
-34 4.5
25mW
-35 4.0
20mW
-36 3.5
16mW
-37 3.2
12.5mW
-38 2.85
10mW
-39 2.5
8mW
-40 2.25 .1µW
6.4mW
-41 2.0
5mW
-42 1.8
4mW
-43 1.6
3.2mW
-44 1.4
2.5mW
-45 1.25
2.0mW
-46 1.18
1.6mW
-47 1.00
1.25mW
-48 0.90
MDS™ Master Station
dBm mV Po dBm µV
-49 0.80 -98
-50 0.71 .01µW -99
-51 0.64 -100
-52 0.57 -101
-53 0.50 -102
-54 0.45 -103
-55 0.40 -104
-56 0.351 -105
-57 0.32 -106
-58 0.286
-59 0.251
dBm nV
-60 0.225 .001µW
-107
-61 0.200
-108
-62 0.180
-109
-63 0.160
-110
-64 0.141
-111
-112
dBm µV Po
-113
-65 128 -114
-66 115 -115
-67 100 -116
-68 90 -117
-69 80 -118
-70 71 .1nW -119
-71 65 -120
-72 58 -121
-73 50 -122
-74 45 -123
-75 40 -124
-76 35 -125
-77 32 -126
-78 29 -127
-79 25 -128
-80 22.5 .01nW -129
-81 20.0 -130
-82 18.0 -131
-83 16.0 -132
-84 11.1 -133
-85 12.9 -134
-86 11.5 -135
-87 10.0 -136
-88 9.0 -137
-89 8.0 -138
-90 7.1 .001nW -139
-91 6.1 -140
-92 5.75
-93 5.0
-94 4.5
-95 4.0
-96 3.51
-97 3.2
Po
2.9
2.51
2.25 .1pW
2.0
1.8
1.6
1.41
1.27
1.18
Po
1000
900
800
710 .01pW
640
580
500
450
400
355
325
285
251
225 .001pW
200
180
160
141
128
117
100
90
80 .1ƒW
71
61
58
50
45
40
35
33
29
25
23 .01ƒW
103