When I am mixing and working on sound design I sometimes like to turn to a list of the frequencies of notes. It helps me bring up the resonance of a note, or keep the fundamental harmonic of my sound design at to fit the key of my track.
Here is the list of frequencies. Keep in mind this is for equal temperament with A being at 440.
Frequencies of Notes at 440
| Octave | Note Name | Frequency Hz |
| -3 | C | 32.7031956626 |
| -3 | C#/Db | 34.6478288721 |
| -3 | D | 36.7080959897 |
| -3 | D#/Eb | 38.8908729653 |
| -3 | E | 41.2034446141 |
| -3 | F | 43.6535289291 |
| -3 | F#/Gb | 46.2493028390 |
| -3 | G | 48.9994294977 |
| -3 | G#/Ab | 51.9130871975 |
| -3 | A | 55.0000000000 |
| -3 | A#/Bb | 58.2704701898 |
| -3 | B | 61.7354126570 |
| -2 | C | 65.4063913251 |
| -2 | C#/Db | 69.2956577442 |
| -2 | D | 73.4161919794 |
| -2 | D#/Eb | 77.7817459305 |
| -2 | E | 82.4068892282 |
| -2 | F | 87.3070578583 |
| -2 | F#/Gb | 92.4986056779 |
| -2 | G | 97.9988589954 |
| -2 | G#/Ab | 103.8261743950 |
| -2 | A | 110.0000000000 |
| -2 | A#/Bb | 116.5409403795 |
| -2 | B | 123.4708253140 |
| -1 | C | 130.8127826503 |
| -1 | C#/Db | 138.5913154884 |
| -1 | D | 146.8323839587 |
| -1 | D#/Eb | 155.5634918610 |
| -1 | E | 164.8137784564 |
| -1 | F | 174.6141157165 |
| -1 | F#/Gb | 184.9972113558 |
| -1 | G | 195.9977179909 |
| -1 | G#/Ab | 207.6523487900 |
| -1 | A | 220.0000000000 |
| -1 | A#/Bb | 233.0818807590 |
| -1 | B | 246.9416506281 |
| 0 | C | 261.6255653006 |
| 0 | C#/Db | 277.1826309769 |
| 0 | D | 293.6647679174 |
| 0 | D#/Eb | 311.1269837221 |
| 0 | E | 329.6275569129 |
| 0 | F | 349.2282314330 |
| 0 | F#/Gb | 369.9944227116 |
| 0 | G | 391.9954359817 |
| 0 | G#/Ab | 415.3046975799 |
| 0 | A | 440.0000000000 |
| 0 | A#/Bb | 466.1637615181 |
| 0 | B | 493.8833012561 |
| 1 | C | 523.2511306012 |
| 1 | C#/Db | 554.3652619537 |
| 1 | D | 587.3295358348 |
| 1 | D#/Eb | 622.2539674442 |
| 1 | E | 659.2551138257 |
| 1 | F | 698.4564628660 |
| 1 | F#/Gb | 739.9888454233 |
| 1 | G | 783.9908719635 |
| 1 | G#/Ab | 830.6093951599 |
| 1 | A | 880.0000000000 |
| 1 | A#/Bb | 932.3275230362 |
| 1 | B | 987.7666025122 |
| 2 | C | 1,046.5022612024 |
| 2 | C#/Db | 1,108.7305239075 |
| 2 | D | 1,174.6590716696 |
| 2 | D#/Eb | 1,244.5079348883 |
| 2 | E | 1,318.5102276515 |
| 2 | F | 1,396.9129257320 |
| 2 | F#/Gb | 1,479.9776908465 |
| 2 | G | 1,567.9817439270 |
| 2 | G#/Ab | 1,661.2187903198 |
| 2 | A | 1,760.0000000000 |
| 2 | A#/Bb | 1,864.6550460724 |
| 2 | B | 1,975.5332050245 |
| 3 | C | 2,093.0045224048 |
| 3 | C#/Db | 2,217.4610478150 |
| 3 | D | 2,349.3181433393 |
| 3 | D#/Eb | 2,489.0158697766 |
| 3 | E | 2,637.0204553030 |
| 3 | F | 2,793.8258514640 |
| 3 | F#/Gb | 2,959.9553816931 |
| 3 | G | 3,135.9634878540 |
| 3 | G#/Ab | 3,322.4375806396 |
| 3 | A | 3,520.0000000000 |
| 3 | A#/Bb | 3,729.3100921447 |
| 3 | B | 3,951.0664100490 |
| 4 | C | 4,186.0090448096 |
| 4 | C#/Db | 4,434.9220956300 |
| 4 | D | 4,698.6362866785 |
| 4 | D#/Eb | 4,978.0317395533 |
| 4 | E | 5,274.0409106059 |
| 4 | F | 5,587.6517029281 |
| 4 | F#/Gb | 5,919.9107633862 |
| 4 | G | 6271.9307633862 |
| 4 | G#/Ab | 6,644.8751612791 |
| 4 | A | 7,040.0000000000 |
| 4 | A#/Bb | 7,458.6201842894 |
| 4 | B | 7,902.1328200980 |
| 5 | C | 8,372.0180896192 |
| 5 | C#/Db | 8,869.8441912599 |
| 5 | D | 9,397.2725733570 |
| 5 | D#/Eb | 9,956.0634791066 |
| 5 | E | 10,548.0818212118 |
| 5 | F | 11,175.3034058561 |
| 5 | F#/Gb | 11,839.8215267723 |
| 5 | G | 12,543.8539514160 |
