Frequency is defined as the number of sound waves that pass a fixed point within a second. Frequency is measured in cycles per second, or Hertz (Hz).
The range of human hearing is generally 20Hz to 20,000Hz. The keys of a piano span
frequencies from 27.5Hz (A0) to 4186.01Hz (C8). Middle-C has a frequency of
261.63Hz (C4). A440 is the standard tuning reference at a frequency of 440Hz
(A4).
|
| Note |
Freq.(Hz) |
| C0 |
16.35159809 |
| C#0 |
17.3239148 |
| D0 |
18.35404848 |
| D#0 |
19.4454371 |
| E0 |
20.60172307 |
| F0 |
21.82676539 |
| F#0 |
23.12465253 |
| G0 |
24.49971605 |
| G#0 |
25.95654512 |
| A0 |
27.5 |
| A#0 |
29.13523525 |
| B0 |
30.86770666 |
| C1 |
32.70319618 |
| C#1 |
34.64782961 |
| D1 |
36.70809697 |
| D#1 |
38.89087421 |
| E1 |
41.20344615 |
| F1 |
43.65353079 |
| F#1 |
46.24930506 |
| G1 |
48.99943211 |
| G#1 |
51.91309024 |
| A1 |
55 |
| A#1 |
58.2704705 |
| B1 |
61.73541331 |
| C2 |
65.40639237 |
| C#2 |
69.29565922 |
| D2 |
73.41619393 |
| D#2 |
77.78174842 |
| E2 |
82.4068923 |
| F2 |
87.30706158 |
| F#2 |
92.49861011 |
| G2 |
97.99886421 |
| G#2 |
103.8261805 |
| A2 |
110 |
| A#2 |
116.540941 |
| B2 |
123.4708266 |
| C3 |
130.8127847 |
| C#3 |
138.5913184 |
| D3 |
146.8323879 |
| D#3 |
155.5634968 |
| E3 |
164.8137846 |
| F3 |
174.6141232 |
| F#3 |
184.9972202 |
| G3 |
195.9977284 |
| G#3 |
207.652361 |
| A3 |
220 |
| A#3 |
233.081882 |
| B3 |
246.9416533 |
| C4 |
261.6255695 |
| C#4 |
277.1826369 |
| D4 |
293.6647757 |
| D#4 |
311.1269937 |
| E4 |
329.6275692 |
| F4 |
349.2282463 |
| F#4 |
369.9944404 |
| G4 |
391.9954569 |
| G#4 |
415.3047219 |
| A4 |
440 |
| A#4 |
466.163764 |
| B4 |
493.8833065 |
|
| Note |
Freq.(Hz) |
| C5 |
523.251139 |
| C#5 |
554.3652738 |
| D5 |
587.3295515 |
| D#5 |
622.2539873 |
| E5 |
659.2551384 |
| F5 |
698.4564926 |
| F#5 |
739.9888809 |
| G5 |
783.9909137 |
| G#5 |
830.6094438 |
| A5 |
880 |
| A#5 |
932.327528 |
| B5 |
987.766613 |
| C6 |
1046.502278 |
| C#6 |
1108.730548 |
| D6 |
1174.659103 |
| D#6 |
1244.507975 |
| E6 |
1318.510277 |
| F6 |
1396.912985 |
| F#6 |
1479.977762 |
| G6 |
1567.981827 |
| G#6 |
1661.218888 |
| A6 |
1760 |
| A#6 |
1864.655056 |
| B6 |
1975.533226 |
| C7 |
2093.004556 |
| C#7 |
2217.461095 |
| D7 |
2349.318206 |
| D#7 |
2489.015949 |
| E7 |
2637.020554 |
| F7 |
2793.82597 |
| F#7 |
2959.955524 |
| G7 |
3135.963655 |
| G#7 |
3322.437775 |
| A7 |
3520 |
| A#7 |
3729.310112 |
| B7 |
3951.066452 |
| C8 |
4186.009112 |
| C#8 |
4434.92219 |
| D8 |
4698.636412 |
| D#8 |
4978.031899 |
| E8 |
5274.041107 |
| F8 |
5587.651941 |
| F#8 |
5919.911047 |
| G8 |
6271.92731 |
| G#8 |
6644.87555 |
| A8 |
7040 |
| A#8 |
7458.620224 |
| B8 |
7902.132904 |
| C9 |
8372.018223 |
| C#9 |
8869.84438 |
| D9 |
9397.272824 |
| D#9 |
9956.063797 |
| E9 |
10548.08221 |
| F9 |
11175.30388 |
| F#9 |
11839.82209 |
| G9 |
12543.85462 |
| G#9 |
13289.7511 |
| A9 |
14080 |
| A#9 |
14917.24045 |
| B9 |
15804.26581 |
| C10 |
16744.03645 |
|
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