Knowledge‎ > ‎

EMF/EMR units conversion



So many types and units?

One of the reasons for the confusion around Electromagnetic non ionizing radiation must be the many types of it and the different units in which we measure each and every type of EMR.


ELF types and units

Eextrem Low Frequency EMR has 2 types of fields: Electric and Magnetic fields.
The electric filed is usually left a side unattended, but the units are Volt per meter (V/m).
The magnetic fields has 2 units: milli Gouse(mG) and microTesla(UT)
The conversion between the 2 is very simple:
10mG=1uT


RF types and units

When referring to Radio Frequency (High Frequency) Electromagnetic non ionizing radiation there are 2 types of fields: Electric and Magnetic fields. This time the Magnetic field is usually left out. The Electric field is measured in units of Volt per meter (V/m). 
When measuring RF radiation you usually measure the Electric field or The power density. The power density is measured in units of mW/m2 or uW/cm2.
 

Conversion from Electric Field to RF power density

It is possible to convert between the Electric field and the power density, but only in the far field.
In the following formulas S is the electromagnetic radiation power density and V is the electric field strength. 
In order to convert from electric field (marked as V, units are Volt per meter) to units of electromagnetic radiation power density(marked in S), in units of micro Watts per square Centimeters, you need to use the following formula:
                


In order to convert from electric field (marked as V, units are volt to meter)to units of electromagnetic radiation power density(marked in S), in units of mWatts per square meter, you need to use the following formula:



                        

The following is a partial conversion table:


V/m mW/m2 uW/m2 dBm - remarks
0.1 0.0265252 0.002653
0.11 0.0320955 0.00321
0.12 0.0381963 0.00382
0.13 0.0448276 0.004483
0.14 0.0519894 0.005199
0.15 0.0596817 0.005968 -40dBm
0.16 0.0679045 0.00679
0.17 0.0766578 0.007666
0.18 0.0859416 0.008594
0.19 0.0957560 0.009576
0.2 0.1061008 0.01061
0.21 0.1169761 0.011698
0.22 0.1283820 0.012838
0.23 0.1403183 0.014032
0.24 0.1527851 0.015279
0.25 0.1657825 0.016578
0.26 0.1793103 0.017931 -35dBm
0.27 0.1933687 0.019337
0.28 0.2079576 0.020796
0.29 0.2230769 0.022308
0.3 0.2387268 0.023873
0.31 0.2549072 0.025491
0.32 0.2716180 0.027162
0.33 0.2888594 0.028886
0.34 0.3066313 0.030663
0.35 0.3249337 0.032493
0.36 0.3437666 0.034377
0.37 0.3631300 0.036313
0.38 0.3830239 0.038302
0.39 0.4034483 0.040345
0.4 0.4244032 0.04244
0.41 0.4458886 0.044589
0.42 0.4679045 0.04679
0.43 0.4904509 0.049045
0.44 0.5135279 0.051353
0.45 0.5371353 0.053714
0.46 0.5612732 0.056127
0.47 0.5859416 0.058594 -30dBm
0.48 0.6111406 0.061114
0.49 0.6368700 0.063687
0.5 0.6631300 0.066313
0.51 0.6899204 0.068992
0.52 0.7172414 0.071724
0.53 0.7450928 0.074509
0.54 0.7734748 0.077347
0.55 0.8023873 0.080239
0.56 0.8318302 0.083183
0.57 0.8618037 0.08618
0.58 0.8923077 0.089231
0.59 0.9233422 0.092334
0.6 0.9549072 0.095491
0.61 0.9870027 0.0987  
0.62 1.0196286 0.101963 EU 2011
0.63 1.0527851 0.105279
0.64 1.0864721 0.108647
0.65 1.1206897 0.112069
0.66 1.1554377 0.115544
0.67 1.1907162 0.119072
0.68 1.2265252 0.122653
0.69 1.2628647 0.126286
0.7 1.2997347 0.129973
0.71 1.3371353 0.133714
0.72 1.3750663 0.137507
0.73 1.4135279 0.141353
0.74 1.4525199 0.145252
0.75 1.4920424 0.149204
0.76 1.5320955 0.15321
0.77 1.5726790 0.157268
0.78 1.6137931 0.161379
0.79 1.6554377 0.165544
0.8 1.6976127 0.169761
0.81 1.7403183 0.174032
0.82 1.7835544 0.178355 ~-25dBm
0.83 1.8273210 0.182732
0.84 1.8716180 0.187162
0.85 1.9164456 0.191645
0.86 1.9618037 0.19618
0.87 2.0076923 0.200769
0.88 2.0541114 0.205411
0.89 2.1010610 0.210106
0.9 2.1485411 0.214854
0.91 2.1965517 0.219655
0.92 2.2450928 0.224509
0.93 2.2941645 0.229416
0.94 2.3437666 0.234377
0.95 2.3938992 0.23939
0.96 2.4445623 0.244456
0.97 2.4957560 0.249576
0.98 2.5474801 0.254748
0.99 2.5997347 0.259973
1 2.6525199 0.265252
1.01 2.7058355 0.270584
1.02 2.7596817 0.275968
1.03 2.8140584 0.281406
1.04 2.8689655 0.286897
1.05 2.9244032 0.29244
1.06 2.9803714 0.298037
1.07 3.0368700 0.303687
1.08 3.0938992 0.30939
1.09 3.1514589 0.315146
1.1 3.2095491 0.320955
1.11 3.2681698 0.326817
1.12 3.3273210 0.332732
1.13 3.3870027 0.3387
1.14 3.4472149 0.344721
1.15 3.5079576 0.350796
1.16 3.5692308 0.356923
1.17 3.6310345 0.363103
1.18 3.6933687 0.369337
1.19 3.7562334 0.375623
1.2 3.8196286 0.381963
1.21 3.8835544 0.388355
1.22 3.9480106 0.394801
1.23 4.0129973 0.4013
1.24 4.0785146 0.407851
1.25 4.1445623 0.414456
1.26 4.2111406 0.421114
1.27 4.2782493 0.427825
1.28 4.3458886 0.434589
1.29 4.4140584 0.441406
1.3 4.4827586 0.448276
1.31 4.5519894 0.455199
1.32 4.6217507 0.462175
1.33 4.6920424 0.469204
1.34 4.7628647 0.476286
1.35 4.8342175 0.483422
1.36 4.9061008 0.49061
1.37 4.9785146 0.497851
1.38 5.0514589 0.505146
1.39 5.1249337 0.512493
1.4 5.1989390 0.519894
1.41 5.2734748 0.527347
1.42 5.3485411 0.534854
1.43 5.4241379 0.542414
1.44 5.5002653 0.550027
1.45 5.5769231 0.557692
1.46 5.6541114 0.565411
1.47 5.7318302 0.573183
1.48 5.8100796 0.581008 ~-20dBm
1.49 5.8888594 0.588886
1.5 5.9681698 0.596817
1.51 6.0480106 0.604801
1.52 6.1283820 0.612838
1.53 6.2092838 0.620928
1.54 6.2907162 0.629072
1.55 6.3726790 0.637268
1.56 6.4551724 0.645517
1.57 6.5381963 0.65382
1.58 6.6217507 0.662175
1.59 6.7058355 0.670584
1.6 6.7904509 0.679045
1.61 6.8755968 0.68756
1.62 6.9612732 0.696127
1.63 7.0474801 0.704748
1.64 7.1342175 0.713422
1.65 7.2214854 0.722149
1.66 7.3092838 0.730928
1.67 7.3976127 0.739761
1.68 7.4864721 0.748647
1.69 7.5758621 0.757586
1.7 7.6657825 0.766578
1.71 7.7562334 0.775623
1.72 7.8472149 0.784721
1.73 7.9387268 0.793873
1.74 8.0307692 0.803077
1.75 8.1233422 0.812334
1.76 8.2164456 0.821645
1.77 8.3100796 0.831008
1.78 8.4042440 0.840424
1.79 8.4989390 0.849894
1.8 8.5941645 0.859416
1.81 8.6899204 0.868992
1.82 8.7862069 0.878621
1.83 8.8830239 0.888302
1.84 8.9803714 0.898037
1.85 9.0782493 0.907825
1.86 9.1766578 0.917666
1.87 9.2755968 0.92756
1.88 9.3750663 0.937507
1.89 9.4750663 0.947507
1.9 9.5755968 0.95756
1.91 9.6766578 0.967666
1.92 9.7782493 0.977825
1.93 9.8803714 0.988037
1.94 9.9830239 0.998302
1.95 10.0862069 1.008621
1.96 10.1899204 1.018992  
1.97 10.2941645 1.029416
1.98 10.3989390 1.039894
1.99 10.5042440 1.050424
2 10.6100796 1.061008
2.01 10.7164456 1.071645
2.02 10.8233422 1.082334
2.03 10.9307692 1.093077
2.04 11.0387268 1.103873
2.05 11.1472149 1.114721
2.06 11.2562334 1.125623
2.07 11.3657825 1.136578
2.08 11.4758621 1.147586
2.09 11.5864721 1.158647
2.1 11.6976127 1.169761
2.11 11.8092838 1.180928
2.12 11.9214854 1.192149
2.13 12.0342175 1.203422
2.14 12.1474801 1.214748
2.15 12.2612732 1.226127
2.16 12.3755968 1.23756
2.17 12.4904509 1.249045
2.18 12.6058355 1.260584
2.19 12.7217507 1.272175
2.2 12.8381963 1.28382
2.21 12.9551724 1.295517
2.22 13.0726790 1.307268
2.23 13.1907162 1.319072
2.24 13.3092838 1.330928
2.25 13.4283820 1.342838
2.26 13.5480106 1.354801
2.27 13.6681698 1.366817
2.28 13.7888594 1.378886
2.29 13.9100796 1.391008
2.3 14.0318302 1.403183
2.31 14.1541114 1.415411
2.32 14.2769231 1.427692
2.33 14.4002653 1.440027
2.34 14.5241379 1.452414
2.35 14.6485411 1.464854
2.36 14.7734748 1.477347
2.37 14.8989390 1.489894
2.38 15.0249337 1.502493
2.39 15.1514589 1.515146
2.4 15.2785146 1.527851
2.41 15.4061008 1.54061
2.42 15.5342175 1.553422
2.43 15.6628647 1.566286
2.44 15.7920424 1.579204
2.45 15.9217507 1.592175
2.46 16.0519894 1.605199
2.47 16.1827586 1.618276
2.48 16.3140584 1.631406
2.49 16.4458886 1.644589
2.5 16.5782493 1.657825
2.51 16.7111406 1.671114
2.52 16.8445623 1.684456
2.53 16.9785146 1.697851
2.54 17.1129973 1.7113
2.55 17.2480106 1.724801
2.56 17.3835544 1.738355
2.57 17.5196286 1.751963
2.58 17.6562334 1.765623
2.59 17.7933687 1.779337
2.6 17.9310345 1.793103
2.61 18.0692308 1.806923 ~-15dBm
2.62 18.2079576 1.820796
2.63 18.3472149 1.834721
2.64 18.4870027 1.8487
2.65 18.6273210 1.862732
2.66 18.7681698 1.876817
2.67 18.9095491 1.890955
2.68 19.0514589 1.905146
2.69 19.1938992 1.91939
2.7 19.3368700 1.933687
2.71 19.4803714 1.948037
2.72 19.6244032 1.96244
2.73 19.7689655 1.976897
2.74 19.9140584 1.991406
2.75 20.0596817 2.005968
2.76 20.2058355 2.020584
2.77 20.3525199 2.035252
2.78 20.4997347 2.049973
2.79 20.6474801 2.064748
2.8 20.7957560 2.079576
2.81 20.9445623 2.094456
2.82 21.0938992 2.10939
2.83 21.2437666 2.124377
2.84 21.3941645 2.139416
2.85 21.5450928 2.154509
2.86 21.6965517 2.169655
2.87 21.8485411 2.184854
2.88 22.0010610 2.200106
2.89 22.1541114 2.215411
2.9 22.3076923 2.230769
2.91 22.4618037 2.24618
2.92 22.6164456 2.261645
2.93 22.7716180 2.277162
2.94 22.9273210 2.292732
2.95 23.0835544 2.308355
2.96 23.2403183 2.324032
2.97 23.3976127 2.339761
2.98 23.5554377 2.355544
2.99 23.7137931 2.371379
3 23.8726790 2.387268
3.01 24.0320955 2.40321
3.02 24.1920424 2.419204
3.03 24.3525199 2.435252
3.04 24.5135279 2.451353
3.05 24.6750663 2.467507
3.06 24.8371353 2.483714
3.07 24.9997347 2.499973
3.08 25.1628647 2.516286
3.09 25.3265252 2.532653
3.1 25.4907162 2.549072
3.11 25.6554377 2.565544
3.12 25.8206897 2.582069
3.13 25.9864721 2.598647
3.14 26.1527851 2.615279
3.15 26.3196286 2.631963
3.16 26.4870027 2.6487
3.17 26.6549072 2.665491
3.18 26.8233422 2.682334
3.19 26.9923077 2.699231
3.2 27.1618037 2.71618
3.21 27.3318302 2.733183
3.22 27.5023873 2.750239
3.23 27.6734748 2.767347
3.24 27.8450928 2.784509
3.25 28.0172414 2.801724
3.26 28.1899204 2.818992
3.27 28.3631300 2.836313
3.28 28.5368700 2.853687
3.29 28.7111406 2.871114
3.3 28.8859416 2.888594
3.31 29.0612732 2.906127
3.32 29.2371353 2.923714
3.33 29.4135279 2.941353
3.34 29.5904509 2.959045
3.35 29.7679045 2.97679
3.36 29.9458886 2.994589
3.37 30.1244032 3.01244
3.38 30.3034483 3.030345
3.39 30.4830239 3.048302
3.4 30.6631300 3.066313
3.41 30.8437666 3.084377
3.42 31.0249337 3.102493
3.43 31.2066313 3.120663
3.44 31.3888594 3.138886
3.45 31.5716180 3.157162
3.46 31.7549072 3.175491
3.47 31.9387268 3.193873
3.48 32.1230769 3.212308
3.49 32.3079576 3.230796
3.5 32.4933687 3.249337
3.51 32.6793103 3.267931
3.52 32.8657825 3.286578
3.53 33.0527851 3.305279
3.54 33.2403183 3.324032
3.55 33.4283820 3.342838
3.56 33.6169761 3.361698
3.57 33.8061008 3.38061
3.58 33.9957560 3.399576
3.59 34.1859416 3.418594
3.6 34.3766578 3.437666
3.61 34.5679045 3.45679
3.62 34.7596817 3.475968
3.63 34.9519894 3.495199
3.64 35.1448276 3.514483
3.65 35.3381963 3.53382
3.66 35.5320955 3.55321
3.67 35.7265252 3.572653
3.68 35.9214854 3.592149
3.69 36.1169761 3.611698
3.7 36.3129973 3.6313
3.71 36.5095491 3.650955
3.72 36.7066313 3.670663
3.73 36.9042440 3.690424
3.74 37.1023873 3.710239
3.75 37.3010610 3.730106
3.76 37.5002653 3.750027
3.77 37.7000000 3.77
3.78 37.9002653 3.790027
3.79 38.1010610 3.810106
3.8 38.3023873 3.830239
3.81 38.5042440 3.850424
3.82 38.7066313 3.870663
3.83 38.9095491 3.890955
3.84 39.1129973 3.9113
3.85 39.3169761 3.931698
3.86 39.5214854 3.952149
3.87 39.7265252 3.972653
3.88 39.9320955 3.99321
3.89 40.1381963 4.01382
3.9 40.3448276 4.034483
3.91 40.5519894 4.055199
3.92 40.7596817 4.075968
3.93 40.9679045 4.09679
3.94 41.1766578 4.117666
3.95 41.3859416 4.138594
3.96 41.5957560 4.159576
3.97 41.8061008 4.18061
3.98 42.0169761 4.201698
4 42.4403183 4.244032
4.5 53.7135279 5.371353
5 66.3129973 6.6313
5.5 80.2387268 8.023873
6 95.4907162 9.549072
6.5 112.0689655 11.2069
7 129.9734748 12.99735
7.5 149.2042440 14.92042
8 169.7612732 16.97613
9 214.8541114 21.48541
10 265.2519894 26.5252
12 381.9628647 38.19629
12.28 399.9957560 39.99958 IL 800MHZ
13 448.2758621 44.82759  
14 519.8938992 51.98939
15 596.8169761 59.6817
16 679.0450928 67.90451
17 766.5782493 76.65782
18 859.4164456 85.94164
19 957.5596817 95.75597
20 1061.0079576 106.1008
30 2387.2679045 238.7268
38.85 4003.5079576 400.3508 ICNIRP 800MHz
40 4244.0318302 424.4032
50 6631.2997347 663.13
60 9549.0716180 954.9072
61.4 9999.8938992 999.9894 ICNIRP 2GHZ
70 12997.3474801 1299.735
80 16976.1273210 1697.613
90 21485.4111406 2148.541
100 26525.1989390 2652.52
200 106100.7957560 10610.08
300 238726.7904509 23872.68
400 424403.1830239 42440.32
500 663129.9734748 66313
600 954907.1618037 95490.72
700 1299734.7480106 129973.5
800 1697612.7320955 169761.3
900 2148541.1140584 214854.1
1000 2652519.8938992 265252

Comments