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iconcust.gif (1130 bytes)Microvolts to dBm Conversion Chart
Feel free to print this page for handy reference

microvolt dBm Watt Conversion (50 ohms)

Vrms

dBm

Watts

 

Vrms

dBm

Watts

 

Vrms

dBm

Watts

μV

dBm

 

 

mV

dBm

 

 

V

dBm

W

0.7

-110

 10 fW

 

1.1

-46

 

 

1.1

+14

0.025

0.8

-109

 

 

1.2

-45

 

 

1.2

+15

0.032

0.9

-108

 

 

1.4

-44

 

 

1.4

+16

0.04

1

-107

 

 

1.5

-43

 

 

1.5

+17

0.05

1.1

-106

 

 

1.7

-42

 

 

1.7

+18

0.063

1.2

-105

 

 

1.9

-41

 

 

1.9

+19

0.08

1.4

-104

 

 

2.2

-40

 100 nW

 

2.2

+20

0.1 W

1.5

-103

 

 

2.5

-39

 

 

2.5

+21

0.13

1.7

-102

 

 

2.8

-38

 

 

2.8

+22

0.16

1.9

-101

 

 

3.1

-37

 

 

3.1

+23

0.2

2.2

-100

 100 fW

 

3.5

-36

 

 

3.5

+24

0.25

2.5

-99

 

 

3.9

-35

 

 

3.9

+25

0.3

2.8

-98

 

 

4.4

-34

 

 

4.4

+26

0.4

3.1

-97

 

 

5

-33

 

 

5

+27

0.5

3.5

-96

 

 

5.6

-32

 

 

5.6

+28

0.63

3.9

-95

 

 

6.3

-31

 

 

6.3

+29

0.8

4.4

-94

 

 

7

-30

 1 W

 

7

+30

1 W

5

-93

 

 

7.9

-29

 

 

7.9

+31

1.2

5.6

-92

 

 

8.9

-28

 

 

8.9

+32

1.5

6.3

-91

 

 

9.9

-27

 

 

9.9

+33

2

7

-90

 1 pW

 

11

-26

 

 

11.2

+34

2.5

7.9

-89

 

 

13

-25

 

 

12.5

+35

3.1

8.9

-88

 

 

14

-24

 

 

14.1

+36

3.9

9.9

-87

 

 

15

-23

 

 

15.8

+37

5

11

-86

 

 

17

-22

 

 

17.7

+38

6.3

13

-85

 

 

19

-21

 

 

19.9

+39

7.9

14

-84

 

 

22

-20

 10 W

 

22.3

+40

10 W

16

-83

 

 

25

-19

 

 

18

-82

 

 

28

-18

 

 

20

-81

 

 

32

-17

 

 

22

-80

 10 pW

 

35

-16

 

 

25

-79

 

 

40

-15

 

 

28

-78

 

 

45

-14

 

 

32

-77

 

 

50

-13

 

 

35

-76

 

 

56

-12

 

 

40

-75

 

 

63

-11

 

 

45

-74

 

 

71

-10

 100 W

 

50

-73

 

 

79

-9

 

 

56

-72

 

 

89

-8

 

 

63

-71

 

 

100

-7

 

 

71

-70

 100 pW

 

112

-6

 

 

79

-69

 

 

126

-5

 

 

89

-68

 

 

141

-4

 

 

100

-67

 

 

158

-3

 

 

112

-66

 

 

178

-2

 

 

126

-65

 

 

199

-1

 

 

141

-64

 

 

224

0

 1 mW

 

158

-63

 

 

251

+1

 

 

177

-62

 

 

282

+2

 

 

200

-61

 

 

316

+3

 

 

223

-60

 1 nW

 

354

+4

 

 

251

-59

 

 

398

+5

 

 

282

-58

 

 

446

+6

 

 

316

-57

 

 

501

+7

 

 

354

-56

 

 

562

+8

 

 

398

-55

 

 

630

+9

 

 

446

-54

 

 

707

+10

 10 mW

 

500

-53

 

 

793

+11

 

 

561

-52

 

 

890

+12

 

 

630

-51

 

 

1000

+13

 

 

707

-50

 10 nW

   

793

-49

 

   

890

-48

 

   

1000

-47

 

   

                       

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