| Q: | dBm to milliwatts quick reference table | | A: | dBm to Watt Conversion Chart
dBm = log10 (mW)*10
mW =10^(dBm/10
40 dBm 10.00 watts
36 dBm 4.00
watts < Maximum ERP allowed in New
Zealand.
30 dBm 1.00 watts
27 dBm 500 milliwatts
26 dBm 400 milliwatts
25 dBm 320 milliwatts
24 dBm 250 milliwatts
23 dBm 200 milliwatts
22 dBm 160 milliwatts
21 dBm 130 milliwatts
20 dBm 100
milliwatts < Maximum ERP allowed
by E.T.S.I. In Europe
15 dBm 32 milliwatts
10 dBm 10 milliwatts
5 dBm 3.2 milliwatts
4 dBm 2.5 milliwatts
3 dBm 2.0 milliwatts
2 dBm 1.6 milliwatts
1 dBm 1.3 milliwatts
0 dBm 1.0 milliwatts
1- dBm 0.79
milliwatts
5- dBm 0.32
milliwatts
10- dBm 0.1
milliwatts
20- dBm 0.01
milliwatts
30- dBm 0.001
milliwatts
40- dBm 0.0001
milliwatts
50- dBm 0.00001
milliwatts
60- dBm 0.000001
milliwatts
70- dBm 0.0000001
milliwatts
80- dBm 0.00000001
milliwatts < Receive threshold for
most WLAN devices
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