| ire or µvolts | Volts rms | Volts peak-to-peak | dBm Z=50 ohms | dBm Z=75 ohms | dBmv Z=75 ohms | dBm Z=600 ohms |
|---|---|---|---|---|---|---|
| 0.1 µv | 0.0000001 Vrms | 0.0000003 Vpp | -127.0 dBm | -128.8 dBm | -80.0 dBmv | -137.8 dBm |
| 0.3 µv | 0.0000003 Vrms | 0.0000008 Vpp | -117.4 dBm | -119.2 dBm | -70.5 dBmv | -128.2 dBm |
| 0.5 µv | 0.0000005 Vrms | 0.0000014 Vpp | -113.0 dBm | -114.8 dBm | -66.0 dBmv | -123.8 dBm |
| 1.0 µv | 0.0000010 Vrms | 0.0000028 Vpp | -107.0 dBm | -108.8 dBm | -60.0 dBmv | -117.8 dBm |
| 2.0 µv | 0.0000020 Vrms | 0.0000057 Vpp | -101.0 dBm | -102.7 dBm | -54.0 dBmv | -111.8 dBm |
| 3.0 µv | 0.0000030 Vrms | 0.0000085 Vpp | -97.4 dBm | -99.2 dBm | -50.5 dBmv | -108.2 dBm |
| 5.0 µv | 0.0000050 Vrms | 0.0000141 Vpp | -93.0 dBm | -94.8 dBm | -46.0 dBmv | -103.8 dBm |
| 10.0 µv | 0.0000100 Vrms | 0.0000283 Vpp | -87.0 dBm | -88.8 dBm | -40.0 dBmv | -97.8 dBm |
| 100.0 µv | 0.0001000 Vrms | 0.0002828 Vpp | -67.0 dBm | -68.8 dBm | -20.0 dBmv | -77.8 dBm |
| 0.1 ire | 0.0004 Vrms | 0.001 Vpp | -56.0 dBm | -57.8 dBm | -9.0 dBmv | -66.8 dBm |
| 0.4 ire | 0.0010 Vrms | 0.003 Vpp | -47.0 dBm | -48.8 dBm | 0.0 dBmv | -57.8 dBm |
| 1.4 ire | 0.004 Vrms | 0.010 Vpp | -36.0 dBm | -37.8 dBm | 11.0 dBmv | -46.8 dBm |
| 2.8 ire | 0.007 Vrms | 0.020 Vpp | -30.0 dBm | -31.8 dBm | 17.0 dBmv | -40.8 dBm |
| 7.0 ire | 0.018 Vrms | 0.050 Vpp | -22.0 dBm | -23.8 dBm | 24.9 dBmv | -32.8 dBm |
| 8.9 ire | 0.022 Vrms | 0.063 Vpp | -20.0 dBm | -21.8 dBm | 27.0 dBmv | -30.8 dBm |
| 11.2 ire | 0.028 Vrms | 0.080 Vpp | -18.0 dBm | -19.7 dBm | 29.0 dBmv | -28.8 dBm |
| 14.0 ire | 0.035 Vrms | 0.100 Vpp | -16.0 dBm | -17.8 dBm | 31.0 dBmv | -26.8 dBm |
| 17.5 ire | 0.044 Vrms | 0.125 Vpp | -14.1 dBm | -15.8 dBm | 32.9 dBmv | -24.9 dBm |
| 21.0 ire | 0.053 Vrms | 0.150 Vpp | -12.5 dBm | -14.3 dBm | 34.5 dBmv | -23.3 dBm |
| 24.5 ire | 0.062 Vrms | 0.175 Vpp | -11.2 dBm | -12.9 dBm | 35.8 dBmv | -22.0 dBm |
| 28.0 ire | 0.071 Vrms | 0.200 Vpp | -10.0 dBm | -11.8 dBm | 37.0 dBmv | -20.8 dBm |
| 31.5 ire | 0.080 Vrms | 0.225 Vpp | -9.0 dBm | -10.7 dBm | 38.0 dBmv | -19.8 dBm |
| 35.0 ire | 0.088 Vrms | 0.250 Vpp | -8.1 dBm | -9.8 dBm | 38.9 dBmv | -18.9 dBm |
| 40.0 ire | 0.101 Vrms | 0.286 Vpp | -6.9 dBm | -8.7 dBm | 40.1 dBmv | -17.7 dBm |
| 60.0 ire | 0.152 Vrms | 0.429 Vpp | -3.4 dBm | -5.1 dBm | 43.6 dBmv | -14.2 dBm |
| 88.5 ire | 0.224 Vrms | 0.632 Vpp | 0.0 dBm | -1.8 dBm | 47.0 dBmv | -10.8 dBm |
| 100.0 ire | 0.253 Vrms | 0.714 Vpp | 1.1 dBm | -0.7 dBm | 48.0 dBmv | -9.7 dBm |
| 108.4 ire | 0.274 Vrms | 0.775 Vpp | 1.8 dBm | 0.0 dBm | 48.8 dBmv | -9.0 dBm |
| 140.0 ire | 0.354 Vrms | 1.000 Vpp | 4.0 dBm | 2.2 dBm | 51.0 dBmv | -6.8 dBm |
| 306.7 ire | 0.775 Vrms | 2.191 Vpp | 10.8 dBm | 9.0 dBm | 57.8 dBmv | 0.0 dBm |
| 486.1 ire | 1.228 Vrms | 3.472 Vpp | 14.8 dBm | 13.0 dBm | 61.8 dBmv | 4.0 dBm |
| 770.5 ire | 1.946 Vrms | 5.503 Vpp | 18.8 dBm | 17.0 dBm | 65.8 dBmv | 8.0 dBm |
| 1221.1 ire | 3.084 Vrms | 8.722 Vpp | 22.8 dBm | 21.0 dBm | 69.8 dBmv | 12.0 dBm |
| 1935.3 ire | 4.887 Vrms | 13.824 Vpp | 26.8 dBm | 25.0 dBm | 73.8 dBmv | 16.0 dBm |
| 3067.2 ire | 7.746 Vrms | 21.909 Vpp | 30.8 dBm | 29.0 dBm | 77.8 dBmv | 20.0 dBm |
| 4861.3 ire | 12.277 Vrms | 34.723 Vpp | 34.8 dBm | 33.0 dBm | 81.8 dBmv | 24.0 dBm |
The formulas used to convert between units are:
ire =Volts_peak_to_peak*140 Volts_rms =Volts_peak_to_peak/SQRT(8) Volts_peak_to_peak =Volts_rms*SQRT(8) dBm =20*LOG10(Volts_peak_to_peak/SQRT(0.008*Z)) dBmv =20*LOG10(Volts_rms/0.001)