VSWR Conversion Chart

Voltage Standing Wave Ratio (VSWR) is the ratio of the input to the reflected signal in standing wave pattern. This ratio can also be measured in dB, and expressed as Return Loss.

VSWR RL (dB) VSWR RL (dB) VSWR RL (dB) VSWR RL (dB) VSWR RL (dB)
1.001 66.025 1.06 30.714 1.138 23.803 1.48 14.264 5.4 3.255
1.002 60.009 1.061 30.575 1.14 23.686 1.49 14.12 5.6 3.136
1.003 56.491 1.062 30.438 1.142 23.571 1.5 13.979 5.8 3.025
1.004 53.997 1.063 30.303 1.144 23.457 1.52 13.708 6 2.923
1.005 50.484 1.064 30.171 1.146 23.346 1.54 13.449 6.2 2.827
1.006 50.484 1.065 30.04 1.148 23.235 1.56 13.201 6.4 2.737
1.007 49.149 1.066 29.912 1.15 23.127 1.58 12.964 6.6 2.653
1.008 47.993 1.067 29.785 1.152 23.02 1.6 12.736 6.8 2.573
1.009 46.975 1.068 29.661 1.154 22.914 1.62 12.518 7 2.499
1.01 46.064 1.069 29.538 1.156 22.81 1.64 12.308 7.2 2.428
1.011 45.24 1.07 29.417 1.158 22.708 1.66 12.107 7.4 2.362
1.012 44.489 1.071 29.298 1.16 22.607 1.68 11.913 7.6 2.299
1.013 43.798 1.072 29.181 1.162 22.507 1.7 11.725 7.8 2.239
1.014 43.159 1.073 29.066 1.164 22.408 1.72 11.545 8 2.183
1.015 42.564 1.074 28.952 1.166 22.311 1.74 11.37 8.2 2.129
1.016 42.007 1.075 28.839 1.168 22.215 1.76 11.202 8.4 2.078
1.017 41.485 1.076 28.728 1.17 22.12 1.78 11.039 8.6 2.029
1.018 40.993 1.077 28.619 1.172 22.027 1.8 10.881 8.8 1.983
1.019 40.528 1.078 28.511 1.174 21.934 1.82 10.279 9 1.938
1.02 40.086 1.079 28.405 1.176 21.843 1.84 10.581 9.2 1.896
1.021 39.667 1.08 28.299 1.178 21.753 1.86 10.437 9.4 1.855
1.022 39.867 1.081 28.196 1.18 21.664 1.88 10.298 9.6 1.816
1.023 38.885 1.082 28.093 1.182 21.576 1.9 10.163 9.8 1.779
1.024 38.52 1.083 27.992 1.184 21.489 1.92 10.032 10 1.743
1.025 38.7 1.084 27.892 1.186 21.403 1.94 9.904 11 1.584
1.026 37.833 1.085 27.794 1.188 21.318 1.96 9.78 12 1.451
1.027 37.51 1.086 27.696 1.19 21.234 1.98 9.66 13 1.339
1.028 37.198 1.087 27.6 1.192 21.151 2 9.542 14 1.243
1.029 36.895 1.088 27.505 1.194 21.069 2.1 8.999 15 1.16
1.03 36.607 1.089 27.411 1.196 20.988 2.2 8.519 16 1.087
1.031 36.327 1.09 27.318 1.198 20.907 2.3 8.091 17 1.023
1.032 36.055 1.091 27.266 1.2 20.828 2.4 7.707 18 0.966
1.033 35.792 1.092 27.135 1.21 20.443 2.5 7.36 19 0.915
1.034 35.537 1.093 27.046 1.22 20.079 2.6 7.044 20 0.869
1.035 35.29 1.094 26.957 1.23 19.732 2.7 6.755 22 0.79
1.036 35.049 1.095 26.869 1.24 19.401 2.8 6.49 24 0.724
1.037 34.816 1.096 26.782 1.25 19.085 2.9 6.246 26 0.668
1.038 34.588 1.097 26.697 1.26 18.783 3 6.021 28 0.621
1.039 34.367 1.098 26.612 1.27 18.493 3.1 5.811 30 0.579
1.04 34.151 1.099 26.528 1.28 18.216 3.2 5.617 32 0.543
1.041 33.941 1.1 26.444 1.29 17.949 3.3 5.435 34 0.511
1.042 33.763 1.102 26.281 1.3 17.692 3.4 5.265 36 0.483
1.043 33.536 1.104 26.12 1.31 17.445 3.5 5.105 38 0.457
1.044 33.341 1.106 25.963 1.32 17.207 3.6 4.956 40 0.434
1.045 33.15 1.108 25.809 1.33 16.977 3.7 4.815 42 0.414
1.046 32.963 1.11 25.658 1.34 16.755 3.8 4.682 44 0.395
1.047 32.78 1.112 25.51 1.35 16.54 3.9 4.556 46 0.038
1.048 32.602 1.114 25.364 1.36 16.322 4 4.437 48 0.362
1.049 32.427 1.116 25.221 1.37 16.131 4.1 4.324 50 0.347
1.05 32.256 1.118 25.081 1.38 15.936 4.2 4.217 55 0.316
1.051 32.088 1.12 24.943 1.39 15.747 4.3 4.115 60 0.29
1.052 31.923 1.122 24.808 1.4 15.563 4.4 4.018 65 0.267
1.053 31.762 1.124 24.675 1.41 15.385 4.5 3.926 70 0.248
1.054 31.604 1.126 24.544 1.42 15.211 4.6 3.838 75 0.232
1.055 31.449 1.128 24.415 1.43 15.043 4.7 3.753 80 0.217
1.056 31.297 1.13 24.289 1.44 14.879 4.8 3.673 85 0.204
1.057 31.147 1.132 24.164 1.45 14.719 4.9 3.596 90 0.193
1.058 31 1.134 24.042 1.46 14.564 5 3.522 95 0.183
1.059 30.856 1.136 23.921 1.47 14.412 5.2 3.383 100 0.174