MIDI NOTE NUMBER TO EQUAL TEMPERAMENT SEMITONE TO HERTZ CONVERSION TABLE

12 C 16.4
13 C# 17.3
14 D 18.4
15 D# 19.4
16 E 20.6
17 F 21.8
18 F# 23.1
19 G 24.5
20 G# 26.0
21 A 27.5
22 A# 29.1
23 B 30.9
36 C 65.4
37 C# 69.3
38 D 73.4
39 D# 77.8
40 E 82.4
41 F 87.3
42 F# 92.5
43 G 98.0
44 G# 103.8
45 A 110.0
46 A# 116.5
47 B 123.5
60 C 261.6
61 C# 277.2
62 D 293.7
63 D# 311.1
64 E 329.6
65 F 349.2
66 F# 370.0
67 G 392.0
68 G# 415.3
69 A 440.0
70 A# 466.2
71 B 493.9
84 C 1046.5
85 C# 1108.7
86 D 1174.7
87 D# 1244.5
88 E 1318.5
89 F 1396.9
90 F# 1480.0
91 G 1568.0
92 G# 1661.2
93 A 1760.0
94 A# 1864.7
  95 B 1975.5
108 C 4186.0
109 C# 4434.9
110 D 4698.6
111 D# 4978.0
112 E 5274.0
113 F 5587.7
114 F# 5919.9
115 G 6271.9
116 G# 6644.9
117 A 7040.0
118 A# 7458.6
119 B 7902.1
na C 16744.0
na C# 17739.7
na D 18794.5
na D# 19912.1
na E 21096.2
na F 22350.6
na F# 23679.6
na G 25087.7
na G# 26579.5
na A 28160.0
na A# 29834.5
na B 31608.5
24 C 32.7
25 C# 34.6
26 D 36.7
27 D# 38.9
28 E 41.2
29 F 43.7
30 F# 46.2
31 G 49.0
32 G# 51.9
33 A 55.0
34 A# 58.3
35 B 61.7
48 C 130.8
49 C# 138.6
50 D 146.8
51 D# 155.6
52 E 164.8
53 F 174.6
54 F# 185.0
55 G 196.0
56 G# 207.7
57 A 220.0
58 A# 233.1
59 B 246.9
72 C 523.3
73 C# 554.4
74 D 587.3
75 D# 622.3
76 E 659.3
77 F 698.5
78 F# 740.0
79 G 784.0
80 G# 830.6
81 A 880.0
82 A# 932.3
83 B 987.8
96 C 2093.0
97 C# 2217.5
98 D 2349.3
99 D# 2489.0
100 E 2637.0
101 F 2793.8
102 F# 2960.0
103 G 3136.0
104 G# 3322.4
105 A 3520.0
106 A# 3729.3
107 B 3951.1
120 C 8372.0
121 C# 8869.8
122 D 9397.3
123 D# 9956.1
134 E 10548.1
125 F 11175.3
126 F# 11839.8
127 G 12543.9
na G# 13289.8
na A 14080.0
na A# 14917.2
na B 15804.3
na C 33488.1
na C# 35479.4
na D 37589.1
na D# 39824.3
na E 42192.3
na F 44701.2
na F# 47359.3
na G 50175.4
na G# 53159.0
na A 56320.0
na A# 59669.0
na B 63217.1

Special thanks to Don Byrd, upon whose work this chart draws.

Indiana University
School of Music
Bloomington, IN 47405-2200
(812) 855-1583
This document is prepared and maintained by the Indiana University School of Music Center for Electronic and Computer Music.
Last Updated: 8/31/03
URL: http://www.indiana.edu/~emusic/hertz.htm
Comments: CECM
Copyright 2003, Prof. Jeffrey Hass and The Trustees of Indiana University