dBm to Milli Watts Reference/Conversion Table

To convert from dBm to milli-Watt (mW), find the dBm value in the left column. The corresponding value in the right column is the milli-Watt value.

หลายครั้งที่ การซื้ออุปกรณ์ Wireless เครื่องส่งสัญญาณต่างๆ บอกเป็น dbm ทำให้บางท่านที่เริ่มศึกษาระบบกำลังส่ง wireless ใหม่ๆ ไม่ทราบคือ หาข้อเปรียบเทียบไม่ได้ วันนี้เราจึกเอาตารางกำลังส่งจาก dbm > mW มาให้ครับ

dBm	mW	dBm	mW	dBm	mW	dBm	mW	dBm	mW
0.0	1.00000	0.1	1.02329	0.2	1.04713	0.3	1.07152	0.4	1.09648
0.5	1.12202	0.6	1.14815	0.7	1.17490	0.8	1.20226	0.9	1.23027
1.0	1.2589	1.1	1.2882	1.2	1.3183	1.3	1.3490	1.4	1.3804
1.5	1.4125	1.6	1.4454	1.7	1.4791	1.8	1.5136	1.9	1.5488
2.0	1.5849	2.1	1.6218	2.2	1.6596	2.3	1.6982	2.4	1.7378
2.5	1.7783	2.6	1.8197	2.7	1.8621	2.8	1.9055	2.9	1.9498
3.0	1.9953	3.1	2.0417	3.2	2.0893	3.3	2.1380	3.4	2.1878
3.5	2.2387	3.6	2.2909	3.7	2.3442	3.8	2.3988	3.9	2.4547
4.0	2.5119	4.1	2.5704	4.2	2.6303	4.3	2.6915	4.4	2.7542
4.5	2.8184	4.6	2.8840	4.7	2.9512	4.8	3.0200	4.9	3.0903
5.0	3.1623	5.1	3.2359	5.2	3.3113	5.3	3.3884	5.4	3.4674
5.5	3.5481	5.6	3.6308	5.7	3.7154	5.8	3.8019	5.9	3.8905
6.0	3.9811	6.1	4.0738	6.2	4.1687	6.3	4.2658	6.4	4.3652
6.5	4.4668	6.6	4.5709	6.7	4.6774	6.8	4.7863	6.9	4.8978
7.0	5.0119	7.1	5.1286	7.2	5.2481	7.3	5.3703	7.4	5.4954
7.5	5.6234	7.6	5.7544	7.7	5.8884	7.8	6.0256	7.9	6.1660
8.0	6.3096	8.1	6.4565	8.2	6.6069	8.3	6.7608	8.4	6.9183
8.5	7.0795	8.6	7.2444	8.7	7.4131	8.8	7.5858	8.9	7.7625
9.0	7.9433	9.1	8.1283	9.2	8.3176	9.3	8.5114	9.4	8.7096
9.5	8.9125	9.6	9.1201	9.7	9.3325	9.8	9.5499	9.9	9.7724
10.0	10.0000	10.1	10.2329	10.2	10.4713	10.3	10.7152	10.4	10.9648
10.5	11.2202	10.6	11.4815	10.7	11.7490	10.8	12.0226	10.9	12.3027
11.0	12.5893	11.1	12.8825	11.2	13.1826	11.3	13.4896	11.4	13.8038
11.5	14.1254	11.6	14.4544	11.7	14.7911	11.8	15.1356	11.9	15.4882
12.0	15.8489	12.1	16.2181	12.2	16.5959	12.3	16.9824	12.4	17.3780
12.5	17.7828	12.6	18.1970	12.7	18.6209	12.8	19.0546	12.9	19.4984
13.0	19.9526	13.1	20.4174	13.2	20.8930	13.3	21.3796	13.4	21.8776
13.5	22.3872	13.6	22.9087	13.7	23.4423	13.8	23.9883	13.9	24.5471
14.0	25.1189	14.1	25.7040	14.2	26.3027	14.3	26.9153	14.4	27.5423
14.5	28.1838	14.6	28.8403	14.7	29.5121	14.8	30.1995	14.9	30.9030
15.0	31.6228	15.1	32.3594	15.2	33.1131	15.3	33.8844	15.4	34.6737
15.5	35.4813	15.6	36.3078	15.7	37.1535	15.8	38.0189	15.9	38.9045
16.0	39.8107	16.1	40.7380	16.2	41.6869	16.3	42.6580	16.4	43.6516
16.5	44.6684	16.6	45.7088	16.7	46.7735	16.8	47.8630	16.9	48.9779
17.0	50.1187	17.1	51.2861	17.2	52.4807	17.3	53.7032	17.4	54.9541
17.5	56.2341	17.6	57.5440	17.7	58.8844	17.8	60.2560	17.9	61.6595
18.0	63.0957	18.1	64.5654	18.2	66.0693	18.3	67.6083	18.4	69.1831
18.5	70.7946	18.6	72.4436	18.7	74.1310	18.8	75.8578	18.9	77.6247
19.0	79.4328	19.1	81.2831	19.2	83.1764	19.3	85.1138	19.4	87.0964
19.5	89.1251	19.6	91.2011	19.7	93.3254	19.8	95.4993	19.9	97.7237
20.0	100.0000	20.1	102.3293	20.2	104.7129	20.3	107.1519	20.4	109.6478
20.5	112.2018	20.6	114.8154	20.7	117.4898	20.8	120.2264	20.9	123.0269
21.0	125.8925	21.1	128.8250	21.2	131.8257	21.3	134.8963	21.4	138.0384
21.5	141.2538	21.6	144.5440	21.7	147.9108	21.8	151.3561	21.9	154.8817
22.0	158.4893	22.1	162.1810	22.2	165.9587	22.3	169.8244	22.4	173.7801
22.5	177.8279	22.6	181.9701	22.7	186.2087	22.8	190.5461	22.9	194.9845
23.0	199.5262	23.1	204.1738	23.2	208.9296	23.3	213.7962	23.4	218.7762
23.5	223.8721	23.6	229.0868	23.7	234.4229	23.8	239.8833	23.9	245.4709
24.0	251.1886	24.1	257.0396	24.2	263.0268	24.3	269.1535	24.4	275.4229
24.5	281.8383	24.6	288.4032	24.7	295.1209	24.8	301.9952	24.9	309.0295
25.0	316.2278	25.1	323.5937	25.2	331.1311	25.3	338.8442	25.4	346.7369
25.5	354.8134	25.6	363.0781	25.7	371.5352	25.8	380.1894	25.9	389.0451
26.0	398.1072	26.1	407.3803	26.2	416.8694	26.3	426.5795	26.4	436.5158
26.5	446.6836	26.6	457.0882	26.7	467.7351	26.8	478.6301	26.9	489.7788
27.0	501.1872	27.1	512.8614	27.2	524.8075	27.3	537.0318	27.4	549.5409
27.5	562.3413	27.6	575.4399	27.7	588.8437	27.8	602.5596	27.9	616.5950
28.0	630.9573	28.1	645.6542	28.2	660.6934	28.3	676.0830	28.4	691.8310
28.5	707.9458	28.6	724.4360	28.7	741.3102	28.8	758.5776	28.9	776.2471
29.0	794.3282	29.1	812.8305	29.2	831.7638	29.3	851.1380	29.4	870.9636
29.5	891.2509	29.6	912.0108	29.7	933.2543	29.8	954.9926	29.9	977.2372
30	1000.000	31	1258.925	32	1584.893	33	1995.262	34	2511.886
35	3162.278	36	3981.072	37	5011.872	38	6309.573	39	7943.282
40	10000.00	41	12589.25	42	15848.93	43	19952.62	44	25118.86
45	31622.78	46	39810.72	47	50118.72	48	63095.73	49	79432.82