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MIDI note numbers and center frequencies

The following table summarizes the MIDI note numbers as defined in the MIDI standard and matched to the Middle C (note number 60) as C4.

The formula connecting the MIDI note number and the base frequency - assuming equal tuning based on A4=a'=440 Hz - is:

<math>f=440\cdot 2^{(n-69)/12}</math>

MIDI note number Key number (Organ) Key number (Piano) Note names (English) Note names (German) Frequency (Equal tuning at 440 Hz)
top of MIDI tuning range     G#9/Ab9 gis’’’’’’/ges’’’’’’ 13289.75
127     G9 g’’’’’’ 12543.85
126     F#9/Gb9 fis’’’’’’/ges’’’’’’ 11839.82
125     F9 f’’’’’’ 11175.30
124     E9 e’’’’’’ 10548.08
123     D#9/Eb9 dis’’’’’’/es’’’’’’ 9956.06
122     D9 d’’’’’’ 9397.27
121     C#9/Db9 cis’’’’’’/des’’’’’’ 8869.84
120     C9 c’’’’’’ 8372.02
119     B8 h’’’’’ 7902.13
118     A#8/Bb8 ais’’’’’/b’’’’’ 7458.62
117     A8 a’’’’’ 7040.00
116     G#8/Ab8 gis’’’’’/ges’’’’’ 6644.88
115     G8 g’’’’’ 6271.93
114     F#8/Gb8 fis’’’’’/ges’’’’’ 5919.91
113     F8 f’’’’’ 5587.65
112     E8 e’’’’’ 5274.04
111     D#8/Eb8 dis’’’’’/es’’’’’ 4978.03
110     D8 d’’’’’ 4698.64
109     C#8/Db8 cis’’’’’/des’’’’’ 4434.92
108   88 C8 c’’’’’ 4186.01
107   87 B7 h’’’’ 3951.07
106   86 A#7/Bb7 ais’’’’/b’’’’ 3729.31
105   85 A7 a’’’’ 3520.00
104   84 G#7/Ab7 gis’’’’/ges’’’’ 3322.44
103   83 G7 g’’’’ 3135.96
102   82 F#7/Gb7 fis’’’’/ges’’’’ 2959.96
101   81 F7 f’’’’ 2793.83
100   80 E7 e’’’’ 2637.02
99   79 D#7/Eb7 dis’’’’/es’’’’ 2489.02
98   78 D7 d’’’’ 2349.32
97   77 C#7/Db7 cis’’’’/des’’’’ 2217.46
96 61 76 C7 c’’’’ 2093.00
95 60 75 B6 h’’’ 1975.53
94 59 74 A#6/Bb6 ais’’’/b’’’ 1864.66
93 58 73 A6 a’’’ 1760.00
92 57 72 G#6/Ab6 gis’’’/as’’’ 1661.22
91 56 71 G6 g’’’ 1567.98
90 55 70 F#6/Gb6 fis’’’/ges’’’ 1479.98
89 54 69 F6 f’’’ 1396.91
88 53 68 E6 e’’’ 1318.51
87 52 67 D#6/Eb6 dis’’’/es’’’ 1244.51
86 51 66 D6 d’’’ 1174.66
85 50 65 C#6/Db6 cis’’’/des’’’ 1108.73
84 49 64 C6 c’’’ 1046.50
83 48 63 B5 h’’ 987.77
82 47 62 A#5/Bb5 ais’’/b’’ 932.33
81 46 61 A5 a’’ 880.00
80 45 60 G#5/Ab5 gis’’/as’’ 830.61
79 44 59 G5 g’’ 783.99
78 43 58 F#5/Gb5 fis’’/ges’’ 739.99
77 42 57 F5 f’’ 698.46
76 41 56 E5 e’’ 659.26
75 40 55 D#5/Eb5 dis’’/es’’ 622.25
74 39 54 D5 d’’ 587.33
73 38 53 C#5/Db5 cis’’/des’’ 554.37
72 37 52 C5 c’’ 523.25
71 36 51 B4 h’ 493.88
70 35 50 A#4/Bb4 ais’/b’ 466.16
69 34 49 A4 concert pitch a’ Kammerton 440.00
68 33 48 G#4/Ab4 gis’/as’ 415.30
67 32 47 G4 g’ 392.00
66 31 46 F#4/Gb4 fis’/ges’ 369.99
65 30 45 F4 f’ 349.23
64 29 44 E4 e’ 329.63
63 28 43 D#4/Eb4 dis’/es’ 311.13
62 27 42 D4 d’ 293.66
61 26 41 C#4/Db4 cis’/des’ 277.18
60 25 40 C4 (middle C) c’ (Schloss-C) 261.63
59 24 39 B3 h 246.94
58 23 38 A#3/Bb3 ais/b 233.08
57 22 37 A3 a 220.00
56 21 36 G#3/Ab3 gis/as 207.65
55 20 35 G3 g 196.00
54 19 34 F#3/Gb3 fis/ges 185.00
53 18 33 F3 f 174.61
52 17 32 E3 e 164.81
51 16 31 D#3/Eb3 dis/es 155.56
50 15 30 D3 d 146.83
49 14 29 C#3/Db3 cis/des 138.59
48 13 28 C3 c 130.81
47 12 27 B2 H 123.47
46 11 26 A#2/Bb2 Ais/B 116.54
45 10 25 A2 A 110.00
44 9 24 G#2/Ab2 Gis/As 103.83
43 8 23 G2 G 98.00
42 7 22 F#2/Gb2 Fis/Ges 92.50
41 6 21 F2 F 87.31
40 5 20 E2 E 82.41
39 4 19 D#2/Eb2 Dis/Es 77.78
38 3 18 D2 D 73.42
37 2 17 C#2/Db2 Cis/Des 69.30
36 1 16 C2 C 65.41
35   15 B1 H1 61.74
34   14 A#1/Bb1 Ais1/b1 58.27
33   13 A1 A1 55.00
32   12 G#1/Ab1 Gis1/As1 51.91
31   11 G1 G1 49.00
30   10 F#1/Gb1 Fis1/Ges1 46.25
29   9 F1 F1 43.65
28   8 E1 E1 41.20
27   7 D#1/Eb1 Dis1/Es1 38.89
26   6 D1 D1 36.71
25   5 C#1/Db1 Cis1/Des1 34.65
24   4 C1 C1 32.70
23   3 B0 H2 30.87
22   2 A#0/Bb0 Ais2/B2 29.14
21   1 A0 A2 27.50
20         25.96
19         24.50
18         23.12
17         21.83
16         20.60
15         19.45
14         18.35
13         17.32
12         16.35
11         15.43
10         14.57
9         13.75
8         12.98
7         12.25
6         11.56
5         10.91
4         10.30
3         9.72
2         9.18
1         8.66
0         8.18