Decibel Conversion Table
DECIBEL CONVERSION TABLE
This table is calculated for 75 Ohm Impedance. 20 LOG mV (10 LOG mV2/75)-30 20 LOG mV (10 LOG mV2/75)-30 dBmv mV dBm dBmv mV dBm +60 1000 +11.25 +20 10.0 -28.75 +59 891 +10.25 +19 8.91 -29.75 +58 794 +9.25 +18 7.94 -30.75 +57 708 +8.25 +17 7.08 -31.75 +56 631 +7.25 +16 6.31 -32.75 +55 562 +6.25 +15 5.62 -33.75 +54 501 +5.25 +14 5.01 -34.75 +53 447 +4.25 +13 4.47 -35.75 +52 398 +3.25 +12 3.98 -36.75 +51 355 +2.25 +11 3.55 -37.75 +50 316 +1.25 +10 3.16 -38.75 +49 282 +0.25 +9 2.82 -39.75 +48 251 -0.75 +8 2.51 -40.75 +47 224 -1.75 +7 2.24 -41.75 +46 200 -2.75 +6 2.00 -42.75 +45 178 -3.75 +5 1.78 -43.75 +44 158 -4.75 +4 1.58 -44.75 +43 141 -5.75 +3 1.41 -45.75 +42 126 -6.75 +2 1.26 -46.75 +41 112 -7.75 +1 1.12 -47.75 +40 100 -8.75 0 1.00 -48.75 +39 89.1 -9.75 -1 0.891 -49.75 +38 79.4 -10.75 -2 0.794 -50.75 +37 70.8 -11.75 -3 0.708 -51.75 +36 63.1 -12.75 -4 0.631 -52.75 +35 56.2 -13.75 -5 0.562 -53.75 +34 50.1 -14.75 -6 0.501 -54.75 +33 44.7 -15.75 -7 0.447 -55.75 +32 39.8 -16.75 -8 0.398 -56.75 +31 35.5 -17.75 -9 0.355 -57.75 +30 31.6 -18.75 -10 0.316 -58.75 +29 28.2 -19.75 -11 0.282 -59.75 +28 25.1 -20.75 -12 0.251 -60.75 +27 22.4 -21.75 -13 0.224 -61.75 +26 20.0 -22.75 -14 0.200 -62.75 +25 17.8 -23.75 -15 0.178 -63.75 +24 15.8 -24.75 -16 0.158 -64.75 +23 14.1 -25.75 -17 0.141 -65.75 +22 12.6 -26.75 -18 0.126 -66.75 +21 11.2 -27.75 -19 0.112 -67.75