dBm to Vpp Calculator

This tool converts from a dBm power value to Vpeak-to-peak. It also calculates the RMS voltage.

The default impedance (Z) is 50 ohm, although you can change that to any value.

Volt peak-to-peak to dBm

Formula

Vpeak-to-peak = 2*SQRT((2*Z)/1000)*10(PdBm/20)

Example Calculation

1 dBm into a 50 ohm impedance translates to Vpk-to-pk of 0.71 Volt.

The same power into half the impedance value gives a peak to peak voltage of 0.51 V.

Related Calculators

dBm to Vpp Table

dBmWattVRMS (Volt)VP (Volt)VPP (Volt)
-2001E-232.2361E-113.1623E-116.32455532033676E-11
-1991.25892541179417E-232.5089E-113.5481E-117.09626778467152E-11
-1981.58489319246111E-232.8150E-113.9811E-117.96214341106994E-11
-1971.99526231496888E-233.1585E-114.4668E-118.93367184301927E-11
-1962.51188643150957E-233.5439E-115.0119E-111.00237446725454E-10
-1953.16227766016838E-233.9764E-115.6234E-111.1246826503807E-10
-1943.98107170553499E-234.4615E-116.3096E-111.26191468896039E-10
-1935.01187233627272E-235.0059E-117.0795E-111.41589156876827E-10
-1926.30957344480194E-235.6167E-117.9433E-111.58865646944856E-10
-1917.94328234724279E-236.3021E-118.9125E-111.78250187626749E-10
-1901E-227.0711E-111.0000E-102E-10
-1891.25892541179417E-227.9339E-111.1220E-102.24403690860393E-10
-1881.58489319246111E-228.9019E-111.2589E-102.51785082358833E-10
-1871.99526231496888E-229.9881E-111.4125E-102.82507508924551E-10
-1862.51188643150957E-221.1207E-101.5849E-103.16978638492222E-10
-1853.16227766016838E-221.2574E-101.7783E-103.55655882007785E-10
-1843.98107170553498E-221.4109E-101.9953E-103.99052462993777E-10
-1835.01187233627272E-221.5830E-102.2387E-104.47744227713668E-10
-1826.30957344480194E-221.7762E-102.5119E-105.02377286301917E-10
-1817.94328234724279E-221.9929E-102.8184E-105.6367658625289E-10
-1801E-212.2361E-103.1623E-106.32455532033676E-10
-1791.25892541179417E-212.5089E-103.5481E-107.09626778467152E-10
-1781.58489319246111E-212.8150E-103.9811E-107.96214341106994E-10
-1771.99526231496888E-213.1585E-104.4668E-108.93367184301927E-10
-1762.51188643150957E-213.5439E-105.0119E-101.00237446725454E-09
-1753.16227766016838E-213.9764E-105.6234E-101.1246826503807E-09
-1743.98107170553499E-214.4615E-106.3096E-101.26191468896039E-09
-1735.01187233627272E-215.0059E-107.0795E-101.41589156876827E-09
-1726.30957344480194E-215.6167E-107.9433E-101.58865646944856E-09
-1717.94328234724279E-216.3021E-108.9125E-101.78250187626749E-09
-1701E-207.0711E-101.0000E-090.000000002
-1691.25892541179417E-207.9339E-101.1220E-092.24403690860393E-09
-1681.58489319246111E-208.9019E-101.2589E-092.51785082358833E-09
-1671.99526231496888E-209.9881E-101.4125E-092.82507508924551E-09
-1662.51188643150957E-201.1207E-091.5849E-093.16978638492222E-09
-1653.16227766016838E-201.2574E-091.7783E-093.55655882007785E-09
-1643.98107170553499E-201.4109E-091.9953E-093.99052462993777E-09
-1635.01187233627272E-201.5830E-092.2387E-094.47744227713668E-09
-1626.30957344480194E-201.7762E-092.5119E-095.02377286301917E-09
-1617.94328234724279E-201.9929E-092.8184E-095.6367658625289E-09
-1601E-192.2361E-093.1623E-096.32455532033676E-09
-1591.25892541179417E-192.5089E-093.5481E-097.09626778467151E-09
-1581.58489319246111E-192.8150E-093.9811E-097.96214341106994E-09
-1571.99526231496888E-193.1585E-094.4668E-098.93367184301927E-09
-1562.51188643150958E-193.5439E-095.0119E-091.00237446725455E-08
-1553.16227766016838E-193.9764E-095.6234E-091.1246826503807E-08
-1543.98107170553497E-194.4615E-096.3096E-091.26191468896039E-08
-1535.01187233627272E-195.0059E-097.0795E-091.41589156876827E-08
-1526.30957344480194E-195.6167E-097.9433E-091.58865646944856E-08
-1517.94328234724282E-196.3021E-098.9125E-091.78250187626749E-08
-1501E-187.0711E-091.0000E-080.00000002
-1491.25892541179417E-187.9339E-091.1220E-082.24403690860393E-08
-1481.58489319246111E-188.9019E-091.2589E-082.51785082358833E-08
-1471.99526231496888E-189.9881E-091.4125E-082.82507508924551E-08
-1462.51188643150958E-181.1207E-081.5849E-083.16978638492223E-08
-1453.16227766016838E-181.2574E-081.7783E-083.55655882007785E-08
-1443.98107170553497E-181.4109E-081.9953E-083.99052462993776E-08
-1435.01187233627271E-181.5830E-082.2387E-084.47744227713668E-08
-1426.30957344480194E-181.7762E-082.5119E-085.02377286301917E-08
-1417.94328234724282E-181.9929E-082.8184E-085.63676586252891E-08
-1401E-172.2361E-083.1623E-086.32455532033676E-08
-1391.25892541179417E-172.5089E-083.5481E-087.09626778467151E-08
-1381.58489319246111E-172.8150E-083.9811E-087.96214341106994E-08
-1371.99526231496888E-173.1585E-084.4668E-088.93367184301927E-08
-1362.51188643150958E-173.5439E-085.0119E-081.00237446725455E-07
-1353.16227766016838E-173.9764E-085.6234E-081.1246826503807E-07
-1343.98107170553497E-174.4615E-086.3096E-081.26191468896039E-07
-1335.01187233627271E-175.0059E-087.0795E-081.41589156876827E-07
-1326.30957344480194E-175.6167E-087.9433E-081.58865646944856E-07
-1317.94328234724282E-176.3021E-088.9125E-081.78250187626749E-07
-1301E-167.0711E-081.0000E-070.0000002
-1291.25892541179417E-167.9339E-081.1220E-072.24403690860393E-07
-1281.58489319246111E-168.9019E-081.2589E-072.51785082358833E-07
-1271.99526231496888E-169.9881E-081.4125E-072.82507508924551E-07
-1262.51188643150958E-161.1207E-071.5849E-073.16978638492223E-07
-1253.16227766016838E-161.2574E-071.7783E-073.55655882007785E-07
-1243.98107170553497E-161.4109E-071.9953E-073.99052462993776E-07
-1235.01187233627272E-161.5830E-072.2387E-074.47744227713668E-07
-1226.30957344480194E-161.7762E-072.5119E-075.02377286301917E-07
-1217.94328234724282E-161.9929E-072.8184E-075.63676586252891E-07
-1201E-152.2361E-073.1623E-076.32455532033676E-07
-1191.25892541179417E-152.5089E-073.5481E-077.09626778467151E-07
-1181.58489319246111E-152.8150E-073.9811E-077.96214341106994E-07
-1171.99526231496888E-153.1585E-074.4668E-078.93367184301927E-07
-1162.51188643150958E-153.5439E-075.0119E-071.00237446725455E-06
-1153.16227766016838E-153.9764E-075.6234E-071.1246826503807E-06
-1143.98107170553497E-154.4615E-076.3096E-071.26191468896039E-06
-1135.01187233627271E-155.0059E-077.0795E-071.41589156876827E-06
-1126.30957344480194E-155.6167E-077.9433E-071.58865646944856E-06
-1117.94328234724282E-156.3021E-078.9125E-071.78250187626749E-06
-1101E-147.0711E-071.0000E-060.000002
-1091.25892541179417E-147.9339E-071.1220E-062.24403690860393E-06
-1081.58489319246111E-148.9019E-071.2589E-062.51785082358833E-06
-1071.99526231496888E-149.9881E-071.4125E-062.82507508924551E-06
-1062.51188643150958E-141.1207E-061.5849E-063.16978638492223E-06
-1053.16227766016838E-141.2574E-061.7783E-063.55655882007785E-06
-1043.98107170553497E-141.4109E-061.9953E-063.99052462993776E-06
-1035.01187233627272E-141.5830E-062.2387E-064.47744227713668E-06
-1026.30957344480194E-141.7762E-062.5119E-065.02377286301917E-06
-1017.94328234724282E-141.9929E-062.8184E-065.63676586252891E-06
-1001E-132.2361E-063.1623E-066.32455532033676E-06
-991.25892541179417E-132.5089E-063.5481E-067.09626778467151E-06
-981.58489319246111E-132.8150E-063.9811E-067.96214341106994E-06
-971.99526231496888E-133.1585E-064.4668E-068.93367184301927E-06
-962.51188643150958E-133.5439E-065.0119E-061.00237446725455E-05
-953.16227766016838E-133.9764E-065.6234E-061.1246826503807E-05
-943.98107170553497E-134.4615E-066.3096E-061.26191468896039E-05
-935.01187233627272E-135.0059E-067.0795E-061.41589156876827E-05
-926.30957344480194E-135.6167E-067.9433E-061.58865646944856E-05
-917.94328234724282E-136.3021E-068.9125E-061.78250187626749E-05
-901E-127.0711E-061.0000E-050.00002
-891.25892541179417E-127.9339E-061.1220E-052.24403690860393E-05
-881.58489319246111E-128.9019E-061.2589E-052.51785082358833E-05
-871.99526231496888E-129.9881E-061.4125E-052.82507508924551E-05
-862.51188643150958E-121.1207E-051.5849E-053.16978638492223E-05
-853.16227766016838E-121.2574E-051.7783E-053.55655882007785E-05
-843.98107170553497E-121.4109E-051.9953E-053.99052462993776E-05
-835.01187233627272E-121.5830E-052.2387E-054.47744227713668E-05
-826.30957344480194E-121.7762E-052.5119E-055.02377286301917E-05
-817.94328234724282E-121.9929E-052.8184E-055.63676586252891E-05
-801E-112.2361E-053.1623E-056.32455532033676E-05
-791.25892541179417E-112.5089E-053.5481E-057.09626778467151E-05
-781.58489319246111E-112.8150E-053.9811E-057.96214341106995E-05
-771.99526231496888E-113.1585E-054.4668E-058.93367184301926E-05
-762.51188643150958E-113.5439E-055.0119E-050.000100237446725455
-753.16227766016838E-113.9764E-055.6234E-050.00011246826503807
-743.98107170553497E-114.4615E-056.3096E-050.000126191468896039
-735.01187233627273E-115.0059E-057.0795E-050.000141589156876828
-726.30957344480193E-115.6167E-057.9433E-050.000158865646944856
-717.94328234724282E-116.3021E-058.9125E-050.000178250187626749
-701E-107.0711E-051.0000E-040.0002
-691.25892541179417E-107.9339E-051.1220E-040.000224403690860393
-681.58489319246111E-108.9019E-051.2589E-040.000251785082358833
-671.99526231496888E-109.9881E-051.4125E-040.000282507508924551
-662.51188643150958E-101.1207E-041.5849E-040.000316978638492223
-653.16227766016838E-101.2574E-041.7783E-040.000355655882007785
-643.98107170553497E-101.4109E-041.9953E-040.000399052462993776
-635.01187233627272E-101.5830E-042.2387E-040.000447744227713668
-626.30957344480193E-101.7762E-042.5119E-040.000502377286301916
-617.94328234724282E-101.9929E-042.8184E-040.000563676586252891
-600.0000000012.2361E-043.1623E-040.000632455532033676
-591.25892541179417E-092.5089E-043.5481E-040.000709626778467151
-581.58489319246111E-092.8150E-043.9811E-040.000796214341106995
-571.99526231496888E-093.1585E-044.4668E-040.000893367184301926
-562.51188643150958E-093.5439E-045.0119E-040.00100237446725455
-553.16227766016838E-093.9764E-045.6234E-040.0011246826503807
-543.98107170553497E-094.4615E-046.3096E-040.00126191468896039
-535.01187233627272E-095.0059E-047.0795E-040.00141589156876828
-526.30957344480193E-095.6167E-047.9433E-040.00158865646944856
-517.94328234724282E-096.3021E-048.9125E-040.00178250187626749
-500.000000017.0711E-041.0000E-030.002
-491.25892541179417E-087.9339E-041.1220E-030.00224403690860393
-481.58489319246111E-088.9019E-041.2589E-030.00251785082358833
-471.99526231496888E-089.9881E-041.4125E-030.00282507508924551
-462.51188643150958E-081.1207E-031.5849E-030.00316978638492223
-453.16227766016838E-081.2574E-031.7783E-030.00355655882007785
-443.98107170553497E-081.4109E-031.9953E-030.00399052462993776
-435.01187233627272E-081.5830E-032.2387E-030.00447744227713668
-426.30957344480193E-081.7762E-032.5119E-030.00502377286301916
-417.94328234724282E-081.9929E-032.8184E-030.00563676586252891
-400.00000012.2361E-033.1623E-030.00632455532033676
-391.25892541179417E-072.5089E-033.5481E-030.00709626778467151
-381.58489319246111E-072.8150E-033.9811E-030.00796214341106995
-371.99526231496888E-073.1585E-034.4668E-030.00893367184301926
-362.51188643150958E-073.5439E-035.0119E-030.0100237446725454
-353.16227766016838E-073.9764E-035.6234E-030.011246826503807
-343.98107170553497E-074.4615E-036.3096E-030.0126191468896039
-335.01187233627273E-075.0059E-037.0795E-030.0141589156876828
-326.30957344480193E-075.6167E-037.9433E-030.0158865646944856
-317.94328234724281E-076.3021E-038.9125E-030.0178250187626749
-300.0000017.0711E-031.0000E-020.02
-291.25892541179417E-067.9339E-031.1220E-020.0224403690860393
-281.58489319246111E-068.9019E-031.2589E-020.0251785082358833
-271.99526231496888E-069.9881E-031.4125E-020.0282507508924551
-262.51188643150958E-061.1207E-021.5849E-020.0316978638492223
-253.16227766016838E-061.2574E-021.7783E-020.0355655882007785
-243.98107170553497E-061.4109E-021.9953E-020.0399052462993776
-235.01187233627273E-061.5830E-022.2387E-020.0447744227713668
-226.30957344480193E-061.7762E-022.5119E-020.0502377286301916
-217.94328234724281E-061.9929E-022.8184E-020.0563676586252891
-200.000012.2361E-023.1623E-020.0632455532033676
-191.25892541179417E-052.5089E-023.5481E-020.0709626778467151
-181.58489319246111E-052.8150E-023.9811E-020.0796214341106995
-171.99526231496888E-053.1585E-024.4668E-020.0893367184301926
-162.51188643150958E-053.5439E-025.0119E-020.100237446725454
-153.16227766016838E-053.9764E-025.6234E-020.11246826503807
-143.98107170553497E-054.4615E-026.3096E-020.126191468896039
-135.01187233627272E-055.0059E-027.0795E-020.141589156876828
-126.30957344480193E-055.6167E-027.9433E-020.158865646944856
-117.94328234724281E-056.3021E-028.9125E-020.178250187626749
-100.00017.0711E-021.0000E-010.2
-90.0001258925411794177.9339E-021.1220E-010.224403690860393
-80.0001584893192461118.9019E-021.2589E-010.251785082358833
-70.0001995262314968889.9881E-021.4125E-010.282507508924551
-60.0002511886431509581.1207E-011.5849E-010.316978638492223
-50.0003162277660168381.2574E-011.7783E-010.355655882007785
-40.0003981071705534971.4109E-011.9953E-010.399052462993776
-30.0005011872336272721.5830E-012.2387E-010.447744227713668
-20.0006309573444801931.7762E-012.5119E-010.502377286301916
-10.0007943282347242821.9929E-012.8184E-010.563676586252891
00.0012.2361E-013.1623E-010.632455532033676
10.001258925411794172.5089E-013.5481E-010.709626778467151
20.001584893192461112.8150E-013.9811E-010.796214341106994
30.001995262314968883.1585E-014.4668E-010.893367184301926
40.002511886431509583.5439E-015.0119E-011.00237446725454
50.003162277660168383.9764E-015.6234E-011.1246826503807
60.003981071705534974.4615E-016.3096E-011.26191468896039
70.005011872336272725.0059E-017.0795E-011.41589156876828
80.006309573444801935.6167E-017.9433E-011.58865646944856
90.007943282347242826.3021E-018.9125E-011.78250187626749
100.017.0711E-011.0000E+002
110.01258925411794177.9339E-011.1220E+002.24403690860393
120.01584893192461118.9019E-011.2589E+002.51785082358833
130.01995262314968889.9881E-011.4125E+002.82507508924551
140.02511886431509581.1207E+001.5849E+003.16978638492223
150.03162277660168381.2574E+001.7783E+003.55655882007785
160.03981071705534971.4109E+001.9953E+003.99052462993776
170.05011872336272721.5830E+002.2387E+004.47744227713668
180.06309573444801931.7762E+002.5119E+005.02377286301916
190.07943282347242811.9929E+002.8184E+005.63676586252891
200.12.2361E+003.1623E+006.32455532033676
210.1258925411794172.5089E+003.5481E+007.09626778467151
220.1584893192461112.8150E+003.9811E+007.96214341106995
230.1995262314968883.1585E+004.4668E+008.93367184301926
240.2511886431509583.5439E+005.0119E+0010.0237446725454
250.3162277660168383.9764E+005.6234E+0011.246826503807
260.3981071705534974.4615E+006.3096E+0012.6191468896039
270.5011872336272725.0059E+007.0795E+0014.1589156876828
280.6309573444801935.6167E+007.9433E+0015.8865646944856
290.7943282347242816.3021E+008.9125E+0017.8250187626749
3017.0711E+001.0000E+0120
311.258925411794177.9339E+001.1220E+0122.4403690860393
321.584893192461118.9019E+001.2589E+0125.1785082358833
331.995262314968889.9881E+001.4125E+0128.2507508924551
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