Use this calculator to convert Power in dBm to millivolt (mV) RMS.
The default value of impedance is 50 ohm although it can be changed in the calculator below
Formula
mVRMS = 1000*(√(Z/1000)*10(PdBm/20))
Related Calculators
Table
The following table shows dBm and equivalent mV values
| dBm | Watt | mV |
| -200 | 1E-23 | 2.2361E-08 |
| -199 | 1.25892541179417E-23 | 2.5089E-08 |
| -198 | 1.58489319246111E-23 | 2.8150E-08 |
| -197 | 1.99526231496888E-23 | 3.1585E-08 |
| -196 | 2.51188643150957E-23 | 3.5439E-08 |
| -195 | 3.16227766016838E-23 | 3.9764E-08 |
| -194 | 3.98107170553499E-23 | 4.4615E-08 |
| -193 | 5.01187233627272E-23 | 5.0059E-08 |
| -192 | 6.30957344480194E-23 | 5.6167E-08 |
| -191 | 7.94328234724279E-23 | 6.3021E-08 |
| -190 | 1E-22 | 7.0711E-08 |
| -189 | 1.25892541179417E-22 | 7.9339E-08 |
| -188 | 1.58489319246111E-22 | 8.9019E-08 |
| -187 | 1.99526231496888E-22 | 9.9881E-08 |
| -186 | 2.51188643150957E-22 | 1.1207E-07 |
| -185 | 3.16227766016838E-22 | 1.2574E-07 |
| -184 | 3.98107170553498E-22 | 1.4109E-07 |
| -183 | 5.01187233627272E-22 | 1.5830E-07 |
| -182 | 6.30957344480194E-22 | 1.7762E-07 |
| -181 | 7.94328234724279E-22 | 1.9929E-07 |
| -180 | 1E-21 | 2.2361E-07 |
| -179 | 1.25892541179417E-21 | 2.5089E-07 |
| -178 | 1.58489319246111E-21 | 2.8150E-07 |
| -177 | 1.99526231496888E-21 | 3.1585E-07 |
| -176 | 2.51188643150957E-21 | 3.5439E-07 |
| -175 | 3.16227766016838E-21 | 3.9764E-07 |
| -174 | 3.98107170553499E-21 | 4.4615E-07 |
| -173 | 5.01187233627272E-21 | 5.0059E-07 |
| -172 | 6.30957344480194E-21 | 5.6167E-07 |
| -171 | 7.94328234724279E-21 | 6.3021E-07 |
| -170 | 1E-20 | 7.0711E-07 |
| -169 | 1.25892541179417E-20 | 7.9339E-07 |
| -168 | 1.58489319246111E-20 | 8.9019E-07 |
| -167 | 1.99526231496888E-20 | 9.9881E-07 |
| -166 | 2.51188643150957E-20 | 1.1207E-06 |
| -165 | 3.16227766016838E-20 | 1.2574E-06 |
| -164 | 3.98107170553499E-20 | 1.4109E-06 |
| -163 | 5.01187233627272E-20 | 1.5830E-06 |
| -162 | 6.30957344480194E-20 | 1.7762E-06 |
| -161 | 7.94328234724279E-20 | 1.9929E-06 |
| -160 | 1E-19 | 2.2361E-06 |
| -159 | 1.25892541179417E-19 | 2.5089E-06 |
| -158 | 1.58489319246111E-19 | 2.8150E-06 |
| -157 | 1.99526231496888E-19 | 3.1585E-06 |
| -156 | 2.51188643150958E-19 | 3.5439E-06 |
| -155 | 3.16227766016838E-19 | 3.9764E-06 |
| -154 | 3.98107170553497E-19 | 4.4615E-06 |
| -153 | 5.01187233627272E-19 | 5.0059E-06 |
| -152 | 6.30957344480194E-19 | 5.6167E-06 |
| -151 | 7.94328234724282E-19 | 6.3021E-06 |
| -150 | 1E-18 | 7.0711E-06 |
| -149 | 1.25892541179417E-18 | 7.9339E-06 |
| -148 | 1.58489319246111E-18 | 8.9019E-06 |
| -147 | 1.99526231496888E-18 | 9.9881E-06 |
| -146 | 2.51188643150958E-18 | 1.1207E-05 |
| -145 | 3.16227766016838E-18 | 1.2574E-05 |
| -144 | 3.98107170553497E-18 | 1.4109E-05 |
| -143 | 5.01187233627271E-18 | 1.5830E-05 |
| -142 | 6.30957344480194E-18 | 1.7762E-05 |
| -141 | 7.94328234724282E-18 | 1.9929E-05 |
| -140 | 1E-17 | 2.2361E-05 |
| -139 | 1.25892541179417E-17 | 2.5089E-05 |
| -138 | 1.58489319246111E-17 | 2.8150E-05 |
| -137 | 1.99526231496888E-17 | 3.1585E-05 |
| -136 | 2.51188643150958E-17 | 3.5439E-05 |
| -135 | 3.16227766016838E-17 | 3.9764E-05 |
| -134 | 3.98107170553497E-17 | 4.4615E-05 |
| -133 | 5.01187233627271E-17 | 5.0059E-05 |
| -132 | 6.30957344480194E-17 | 5.6167E-05 |
| -131 | 7.94328234724282E-17 | 6.3021E-05 |
| -130 | 1E-16 | 7.0711E-05 |
| -129 | 1.25892541179417E-16 | 7.9339E-05 |
| -128 | 1.58489319246111E-16 | 8.9019E-05 |
| -127 | 1.99526231496888E-16 | 9.9881E-05 |
| -126 | 2.51188643150958E-16 | 1.1207E-04 |
| -125 | 3.16227766016838E-16 | 1.2574E-04 |
| -124 | 3.98107170553497E-16 | 1.4109E-04 |
| -123 | 5.01187233627272E-16 | 1.5830E-04 |
| -122 | 6.30957344480194E-16 | 1.7762E-04 |
| -121 | 7.94328234724282E-16 | 1.9929E-04 |
| -120 | 1E-15 | 2.2361E-04 |
| -119 | 1.25892541179417E-15 | 2.5089E-04 |
| -118 | 1.58489319246111E-15 | 2.8150E-04 |
| -117 | 1.99526231496888E-15 | 3.1585E-04 |
| -116 | 2.51188643150958E-15 | 3.5439E-04 |
| -115 | 3.16227766016838E-15 | 3.9764E-04 |
| -114 | 3.98107170553497E-15 | 4.4615E-04 |
| -113 | 5.01187233627271E-15 | 5.0059E-04 |
| -112 | 6.30957344480194E-15 | 5.6167E-04 |
| -111 | 7.94328234724282E-15 | 6.3021E-04 |
| -110 | 1E-14 | 7.0711E-04 |
| -109 | 1.25892541179417E-14 | 7.9339E-04 |
| -108 | 1.58489319246111E-14 | 8.9019E-04 |
| -107 | 1.99526231496888E-14 | 9.9881E-04 |
| -106 | 2.51188643150958E-14 | 1.1207E-03 |
| -105 | 3.16227766016838E-14 | 1.2574E-03 |
| -104 | 3.98107170553497E-14 | 1.4109E-03 |
| -103 | 5.01187233627272E-14 | 1.5830E-03 |
| -102 | 6.30957344480194E-14 | 1.7762E-03 |
| -101 | 7.94328234724282E-14 | 1.9929E-03 |
| -100 | 1E-13 | 2.2361E-03 |
| -99 | 1.25892541179417E-13 | 2.5089E-03 |
| -98 | 1.58489319246111E-13 | 2.8150E-03 |
| -97 | 1.99526231496888E-13 | 3.1585E-03 |
| -96 | 2.51188643150958E-13 | 3.5439E-03 |
| -95 | 3.16227766016838E-13 | 3.9764E-03 |
| -94 | 3.98107170553497E-13 | 4.4615E-03 |
| -93 | 5.01187233627272E-13 | 5.0059E-03 |
| -92 | 6.30957344480194E-13 | 5.6167E-03 |
| -91 | 7.94328234724282E-13 | 6.3021E-03 |
| -90 | 1E-12 | 7.0711E-03 |
| -89 | 1.25892541179417E-12 | 7.9339E-03 |
| -88 | 1.58489319246111E-12 | 8.9019E-03 |
| -87 | 1.99526231496888E-12 | 9.9881E-03 |
| -86 | 2.51188643150958E-12 | 1.1207E-02 |
| -85 | 3.16227766016838E-12 | 1.2574E-02 |
| -84 | 3.98107170553497E-12 | 1.4109E-02 |
| -83 | 5.01187233627272E-12 | 1.5830E-02 |
| -82 | 6.30957344480194E-12 | 1.7762E-02 |
| -81 | 7.94328234724282E-12 | 1.9929E-02 |
| -80 | 1E-11 | 2.2361E-02 |
| -79 | 1.25892541179417E-11 | 2.5089E-02 |
| -78 | 1.58489319246111E-11 | 2.8150E-02 |
| -77 | 1.99526231496888E-11 | 3.1585E-02 |
| -76 | 2.51188643150958E-11 | 3.5439E-02 |
| -75 | 3.16227766016838E-11 | 3.9764E-02 |
| -74 | 3.98107170553497E-11 | 4.4615E-02 |
| -73 | 5.01187233627273E-11 | 5.0059E-02 |
| -72 | 6.30957344480193E-11 | 5.6167E-02 |
| -71 | 7.94328234724282E-11 | 6.3021E-02 |
| -70 | 1E-10 | 7.0711E-02 |
| -69 | 1.25892541179417E-10 | 7.9339E-02 |
| -68 | 1.58489319246111E-10 | 8.9019E-02 |
| -67 | 1.99526231496888E-10 | 9.9881E-02 |
| -66 | 2.51188643150958E-10 | 1.1207E-01 |
| -65 | 3.16227766016838E-10 | 1.2574E-01 |
| -64 | 3.98107170553497E-10 | 1.4109E-01 |
| -63 | 5.01187233627272E-10 | 1.5830E-01 |
| -62 | 6.30957344480193E-10 | 1.7762E-01 |
| -61 | 7.94328234724282E-10 | 1.9929E-01 |
| -60 | 0.000000001 | 2.2361E-01 |
| -59 | 1.25892541179417E-09 | 2.5089E-01 |
| -58 | 1.58489319246111E-09 | 2.8150E-01 |
| -57 | 1.99526231496888E-09 | 3.1585E-01 |
| -56 | 2.51188643150958E-09 | 3.5439E-01 |
| -55 | 3.16227766016838E-09 | 3.9764E-01 |
| -54 | 3.98107170553497E-09 | 4.4615E-01 |
| -53 | 5.01187233627272E-09 | 5.0059E-01 |
| -52 | 6.30957344480193E-09 | 5.6167E-01 |
| -51 | 7.94328234724282E-09 | 6.3021E-01 |
| -50 | 0.00000001 | 7.0711E-01 |
| -49 | 1.25892541179417E-08 | 7.9339E-01 |
| -48 | 1.58489319246111E-08 | 8.9019E-01 |
| -47 | 1.99526231496888E-08 | 9.9881E-01 |
| -46 | 2.51188643150958E-08 | 1.1207E+00 |
| -45 | 3.16227766016838E-08 | 1.2574E+00 |
| -44 | 3.98107170553497E-08 | 1.4109E+00 |
| -43 | 5.01187233627272E-08 | 1.5830E+00 |
| -42 | 6.30957344480193E-08 | 1.7762E+00 |
| -41 | 7.94328234724282E-08 | 1.9929E+00 |
| -40 | 0.0000001 | 2.2361E+00 |
| -39 | 1.25892541179417E-07 | 2.5089E+00 |
| -38 | 1.58489319246111E-07 | 2.8150E+00 |
| -37 | 1.99526231496888E-07 | 3.1585E+00 |
| -36 | 2.51188643150958E-07 | 3.5439E+00 |
| -35 | 3.16227766016838E-07 | 3.9764E+00 |
| -34 | 3.98107170553497E-07 | 4.4615E+00 |
| -33 | 5.01187233627273E-07 | 5.0059E+00 |
| -32 | 6.30957344480193E-07 | 5.6167E+00 |
| -31 | 7.94328234724281E-07 | 6.3021E+00 |
| -30 | 0.000001 | 7.0711E+00 |
| -29 | 1.25892541179417E-06 | 7.9339E+00 |
| -28 | 1.58489319246111E-06 | 8.9019E+00 |
| -27 | 1.99526231496888E-06 | 9.9881E+00 |
| -26 | 2.51188643150958E-06 | 1.1207E+01 |
| -25 | 3.16227766016838E-06 | 1.2574E+01 |
| -24 | 3.98107170553497E-06 | 1.4109E+01 |
| -23 | 5.01187233627273E-06 | 1.5830E+01 |
| -22 | 6.30957344480193E-06 | 1.7762E+01 |
| -21 | 7.94328234724281E-06 | 1.9929E+01 |
| -20 | 0.00001 | 2.2361E+01 |
| -19 | 1.25892541179417E-05 | 2.5089E+01 |
| -18 | 1.58489319246111E-05 | 2.8150E+01 |
| -17 | 1.99526231496888E-05 | 3.1585E+01 |
| -16 | 2.51188643150958E-05 | 3.5439E+01 |
| -15 | 3.16227766016838E-05 | 3.9764E+01 |
| -14 | 3.98107170553497E-05 | 4.4615E+01 |
| -13 | 5.01187233627272E-05 | 5.0059E+01 |
| -12 | 6.30957344480193E-05 | 5.6167E+01 |
| -11 | 7.94328234724281E-05 | 6.3021E+01 |
| -10 | 0.0001 | 7.0711E+01 |
| -9 | 0.000125892541179417 | 7.9339E+01 |
| -8 | 0.000158489319246111 | 8.9019E+01 |
| -7 | 0.000199526231496888 | 9.9881E+01 |
| -6 | 0.000251188643150958 | 1.1207E+02 |
| -5 | 0.000316227766016838 | 1.2574E+02 |
| -4 | 0.000398107170553497 | 1.4109E+02 |
| -3 | 0.000501187233627272 | 1.5830E+02 |
| -2 | 0.000630957344480193 | 1.7762E+02 |
| -1 | 0.000794328234724282 | 1.9929E+02 |
| 0 | 0.001 | 2.2361E+02 |
| 1 | 0.00125892541179417 | 2.5089E+02 |
| 2 | 0.00158489319246111 | 2.8150E+02 |
| 3 | 0.00199526231496888 | 3.1585E+02 |
| 4 | 0.00251188643150958 | 3.5439E+02 |
| 5 | 0.00316227766016838 | 3.9764E+02 |
| 6 | 0.00398107170553497 | 4.4615E+02 |
| 7 | 0.00501187233627272 | 5.0059E+02 |
| 8 | 0.00630957344480193 | 5.6167E+02 |
| 9 | 0.00794328234724282 | 6.3021E+02 |
| 10 | 0.01 | 7.0711E+02 |
| 11 | 0.0125892541179417 | 7.9339E+02 |
| 12 | 0.0158489319246111 | 8.9019E+02 |
| 13 | 0.0199526231496888 | 9.9881E+02 |
| 14 | 0.0251188643150958 | 1.1207E+03 |
| 15 | 0.0316227766016838 | 1.2574E+03 |
| 16 | 0.0398107170553497 | 1.4109E+03 |
| 17 | 0.0501187233627272 | 1.5830E+03 |
| 18 | 0.0630957344480193 | 1.7762E+03 |
| 19 | 0.0794328234724281 | 1.9929E+03 |
| 20 | 0.1 | 2.2361E+03 |
| 21 | 0.125892541179417 | 2.5089E+03 |
| 22 | 0.158489319246111 | 2.8150E+03 |
| 23 | 0.199526231496888 | 3.1585E+03 |
| 24 | 0.251188643150958 | 3.5439E+03 |
| 25 | 0.316227766016838 | 3.9764E+03 |
| 26 | 0.398107170553497 | 4.4615E+03 |
| 27 | 0.501187233627272 | 5.0059E+03 |
| 28 | 0.630957344480193 | 5.6167E+03 |
| 29 | 0.794328234724281 | 6.3021E+03 |
| 30 | 1 | 7.0711E+03 |
| 31 | 1.25892541179417 | 7.9339E+03 |
| 32 | 1.58489319246111 | 8.9019E+03 |
| 33 | 1.99526231496888 | 9.9881E+03 |
| 34 | 2.51188643150958 | 1.1207E+04 |
| 35 | 3.16227766016838 | 1.2574E+04 |
| 36 | 3.98107170553497 | 1.4109E+04 |
| 37 | 5.01187233627272 | 1.5830E+04 |
| 38 | 6.30957344480193 | 1.7762E+04 |
| 39 | 7.94328234724281 | 1.9929E+04 |
| 40 | 10 | 2.2361E+04 |
| 41 | 12.5892541179417 | 2.5089E+04 |
| 42 | 15.8489319246111 | 2.8150E+04 |
| 43 | 19.9526231496888 | 3.1585E+04 |
| 44 | 25.1188643150958 | 3.5439E+04 |
| 45 | 31.6227766016838 | 3.9764E+04 |
| 46 | 39.8107170553497 | 4.4615E+04 |
| 47 | 50.1187233627273 | 5.0059E+04 |
| 48 | 63.0957344480193 | 5.6167E+04 |
| 49 | 79.4328234724282 | 6.3021E+04 |
| 50 | 100 | 7.0711E+04 |
| 51 | 125.892541179417 | 7.9339E+04 |
| 52 | 158.489319246111 | 8.9019E+04 |
| 53 | 199.526231496888 | 9.9881E+04 |
| 54 | 251.188643150958 | 1.1207E+05 |
| 55 | 316.227766016838 | 1.2574E+05 |
| 56 | 398.107170553497 | 1.4109E+05 |
| 57 | 501.187233627272 | 1.5830E+05 |
| 58 | 630.957344480193 | 1.7762E+05 |
| 59 | 794.328234724282 | 1.9929E+05 |
| 60 | 1000 | 2.2361E+05 |
| 61 | 1258.92541179417 | 2.5089E+05 |
| 62 | 1584.89319246111 | 2.8150E+05 |
| 63 | 1995.26231496888 | 3.1585E+05 |
| 64 | 2511.88643150958 | 3.5439E+05 |
| 65 | 3162.27766016838 | 3.9764E+05 |
| 66 | 3981.07170553497 | 4.4615E+05 |
| 67 | 5011.87233627272 | 5.0059E+05 |
| 68 | 6309.57344480193 | 5.6167E+05 |
| 69 | 7943.28234724282 | 6.3021E+05 |
| 70 | 10000 | 7.0711E+05 |
| 71 | 12589.2541179417 | 7.9339E+05 |
| 72 | 15848.9319246111 | 8.9019E+05 |
| 73 | 19952.6231496888 | 9.9881E+05 |
| 74 | 25118.8643150958 | 1.1207E+06 |
| 75 | 31622.7766016838 | 1.2574E+06 |
| 76 | 39810.7170553497 | 1.4109E+06 |
| 77 | 50118.7233627272 | 1.5830E+06 |
| 78 | 63095.7344480193 | 1.7762E+06 |
| 79 | 79432.8234724282 | 1.9929E+06 |
| 80 | 100000 | 2.2361E+06 |
| 81 | 125892.541179417 | 2.5089E+06 |
| 82 | 158489.319246111 | 2.8150E+06 |
| 83 | 199526.231496888 | 3.1585E+06 |
| 84 | 251188.643150958 | 3.5439E+06 |
| 85 | 316227.766016838 | 3.9764E+06 |
| 86 | 398107.170553497 | 4.4615E+06 |
| 87 | 501187.233627272 | 5.0059E+06 |
| 88 | 630957.344480194 | 5.6167E+06 |
| 89 | 794328.234724282 | 6.3021E+06 |
| 90 | 1000000 | 7.0711E+06 |
| 91 | 1258925.41179417 | 7.9339E+06 |
| 92 | 1584893.19246111 | 8.9019E+06 |
| 93 | 1995262.31496888 | 9.9881E+06 |
| 94 | 2511886.43150958 | 1.1207E+07 |
| 95 | 3162277.66016838 | 1.2574E+07 |
| 96 | 3981071.70553497 | 1.4109E+07 |
| 97 | 5011872.33627272 | 1.5830E+07 |
| 98 | 6309573.44480194 | 1.7762E+07 |
| 99 | 7943282.34724282 | 1.9929E+07 |
| 100 | 10000000 | 2.2361E+07 |