Handy Charts

Relationship of Notes to Frequency and Wavelength
Equal-Tempered (Even-Tempered) Scale
Speed of sound = 343 m/s or 1125.33 ft/s at 20°C
A4 = 440 Hz

MIDI No.	Piano Key	Note (SPN*)	Frequency (Hz)	Wavelength (cm)	Wavelength (in)	Wavelength (ft)	Common Name
0		C-1	8.18	4195.31	1651.70	137.642
1		C♯-1/D♭-1	8.66	3959.84	1559.00	129.916
2		D-1	9.18	3737.60	1471.50	122.625
3		D♯-1/E♭-1	9.72	3527.82	1388.91	115.742
4		E-1	10.30	3329.82	1310.95	109.246
5		F-1	10.91	3142.93	1237.38	103.115
6		F♯-1/G♭-1	11.56	2966.53	1167.93	97.327
7		G-1	12.25	2800.03	1102.38	91.865
8		G♯-1/A♭-1	12.98	2642.88	1040.51	86.709
9		A-1	13.75	2494.55	982.11	81.842
10		A♯-1/B♭-1	14.57	2354.54	926.98	77.249
11		B-1	15.43	2222.39	874.96	72.913
12		C0	16.35	2097.65	825.85	68.821
13		C♯0/D♭0	17.32	1979.92	779.50	64.958
14		D0	18.35	1868.80	735.75	61.312
15		D♯0/E♭0	19.45	1763.91	694.45	57.871
16		E0	20.60	1664.91	655.48	54.623
17		F0	21.83	1571.47	618.69	51.557
18		F♯0/G♭0	23.12	1483.27	583.96	48.664
19		G0	24.50	1400.02	551.19	45.932
20		G♯0/A♭0	25.96	1321.44	520.25	43.354
21	1	A0	27.50	1247.27	491.05	40.921
22	2	A♯0/B♭0	29.14	1177.27	463.49	38.624
23	3	B0	30.87	1111.19	437.48	36.457
24	4	C1	32.70	1048.83	412.92	34.410
25	5	C♯1/D♭1	34.65	989.96	389.75	32.479
26	6	D1	36.71	934.40	367.87	30.656
27	7	D♯1/E♭1	38.89	881.96	347.23	28.936
28	8	E1	41.20	832.45	327.74	27.312
29	9	F1	43.65	785.73	309.34	25.779
30	10	F♯1/G♭1	46.25	741.63	291.98	24.332
31	11	G1	49.00	700.01	275.59	22.966
32	12	G♯1/A♭1	51.91	660.72	260.13	21.677
33	13	A1	55.00	623.64	245.53	20.461
34	14	A♯1/B♭1	58.27	588.63	231.75	19.312
35	15	B1	61.74	555.60	218.74	18.228
36	16	C2	65.41	524.41	206.46	17.205	Deep C
37	17	C♯2/D♭2	69.30	494.98	194.87	16.240
38	18	D2	73.42	467.20	183.94	15.328
39	19	D♯2/E♭2	77.78	440.98	173.61	14.468
40	20	E2	82.41	416.23	163.87	13.656
41	21	F2	87.31	392.87	154.67	12.889
42	22	F♯2/G♭2	92.50	370.82	145.99	12.166
43	23	G2	98.00	350.00	137.80	11.483
44	24	G♯2/A♭2	103.83	330.36	130.06	10.839
45	25	A2	110.00	311.82	122.76	10.230
46	26	A♯2/B♭2	116.54	294.32	115.87	9.656
47	27	B2	123.47	277.80	109.37	9.114
48	28	C3	130.81	262.21	103.23	8.603	Low C
49	29	C♯3/D♭3	138.59	247.49	97.44	8.120
50	30	D3	146.83	233.60	91.97	7.664
51	31	D♯3/E♭3	155.56	220.49	86.81	7.234
52	32	E3	164.81	208.11	81.93	6.828
53	33	F3	174.61	196.43	77.34	6.445
54	34	F♯3/G♭3	185.00	185.41	73.00	6.083
55	35	G3	196.00	175.00	68.90	5.742
56	36	G♯3/A♭3	207.65	165.18	65.03	5.419
57	37	A3	220.00	155.91	61.38	5.115
58	38	A♯3/B♭3	233.08	147.16	57.94	4.828
59	39	B3	246.94	138.90	54.68	4.557
60	40	C4	261.63	131.10	51.62	4.301	Middle C
61	41	C♯4/D♭4	277.18	123.75	48.72	4.060
62	42	D4	293.66	116.80	45.98	3.832
63	43	D♯4/E♭4	311.13	110.24	43.40	3.617
64	44	E4	329.63	104.06	40.97	3.414
65	45	F4	349.23	98.22	38.67	3.222
66	46	F♯4/G♭4	369.99	92.70	36.50	3.041
67	47	G4	392.00	87.50	34.45	2.871
68	48	G♯4/A♭4	415.30	82.59	32.52	2.710
69	49	A4	440.00	77.95	30.69	2.558	A440
70	50	A♯4/B♭4	466.16	73.58	28.97	2.414
71	51	B4	493.88	69.45	27.34	2.279
72	52	C5	523.25	65.55	25.81	2.151	Tenor C
73	53	C♯5/D♭5	554.37	61.87	24.36	2.030
74	54	D5	587.33	58.40	22.99	1.916
75	55	D♯5/E♭5	622.25	55.12	21.70	1.808
76	56	E5	659.26	52.03	20.48	1.707
77	57	F5	698.46	49.11	19.33	1.611
78	58	F♯5/G♭5	739.99	46.35	18.25	1.521
79	59	G5	783.99	43.75	17.22	1.435
80	60	G♯5/A♭5	830.61	41.29	16.26	1.355
81	61	A5	880.00	38.98	15.35	1.279
82	62	A♯5/B♭5	932.33	36.79	14.48	1.207
83	63	B5	987.77	34.72	13.67	1.139
84	64	C6	1046.50	32.78	12.90	1.075	High C
85	65	C♯6/D♭6	1108.73	30.94	12.18	1.015
86	66	D6	1174.66	29.20	11.50	0.958
87	67	D♯6/E♭6	1244.51	27.56	10.85	0.904
88	68	E6	1318.51	26.01	10.24	0.853
89	69	F6	1396.91	24.55	9.67	0.806
90	70	F♯6/G♭6	1479.98	23.18	9.12	0.760
91	71	G6	1567.98	21.88	8.61	0.718
92	72	G♯6/A♭6	1661.22	20.65	8.13	0.677
93	73	A6	1760.00	19.49	7.67	0.639
94	74	A♯6/B♭6	1864.66	18.39	7.24	0.604
95	75	B6	1975.53	17.36	6.84	0.570
96	76	C7	2093.00	16.39	6.45	0.538	Double High C
97	77	C♯7/D♭7	2217.46	15.47	6.09	0.507
98	78	D7	2349.32	14.60	5.75	0.479
99	79	D♯7/E♭7	2489.02	13.78	5.43	0.452
100	80	E7	2637.02	13.01	5.12	0.427
101	81	F7	2793.83	12.28	4.83	0.403
102	82	F♯7/G♭7	2959.96	11.59	4.56	0.380
103	83	G7	3135.96	10.94	4.31	0.359
104	84	G♯7/A♭7	3322.44	10.32	4.06	0.339
105	85	A7	3520.00	9.74	3.84	0.320
106	86	A♯7/B♭7	3729.31	9.20	3.62	0.302
107	87	B7	3951.07	8.68	3.42	0.285
108	88	C8	4186.01	8.19	3.23	0.269
109		C♯8/D♭8	4434.92	7.73	3.04	0.254
110		D8	4698.64	7.30	2.87	0.240
111		D♯8/E♭8	4978.03	6.89	2.71	0.226
112		E8	5274.04	6.50	2.56	0.213
113		F8	5587.65	6.14	2.42	0.201
114		F♯8/G♭8	5919.91	5.79	2.28	0.190
115		G8	6271.93	5.47	2.15	0.179
116		G♯8/A♭8	6644.88	5.16	2.03	0.169
117		A8	7040.00	4.87	1.92	0.160
118		A♯8/B♭8	7458.62	4.60	1.81	0.151
119		B8	7902.13	4.34	1.71	0.142
120		C9	8372.02	4.10	1.61	0.134
121		C♯9/D♭9	8869.84	3.87	1.52	0.127
122		D9	9397.27	3.65	1.44	0.120
123		D♯9/E♭9	9956.06	3.45	1.36	0.113
124		E9	10548.08	3.25	1.28	0.107
125		F9	11175.30	3.07	1.21	0.101
126		F♯9/G♭9	11839.82	2.90	1.14	0.095
127		G9	12543.85	2.73	1.08	0.090
		G♯9/A♭9	13289.75	2.58	1.02	0.085
		A9	14080.00	2.44	0.96	0.080
		A♯9/B♭9	14917.24	2.30	0.91	0.075
		B9	15804.27	2.17	0.85	0.071

* SPN - Scientific Pitch Notation.

Note; Some keyboard manufacturers use slightly different note numbering systems, ranging from C0 to G10 rather than C-1 to G9. For example, MIDI note 60 (middle C) is called C4 by Korg, but C3 by Roland.

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