Note frequency chart: every note in Hz
The frequency of every note in equal temperament, tuned to A4 = 440 Hz. Use it to tune kicks and 808s, set an EQ on the right note, or find out which note a resonance is ringing at.
The chart (Hz)
| Note | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
|---|---|---|---|---|---|---|---|---|---|
| C | 16.35 | 32.70 | 65.41 | 130.8 | 261.6 | 523.3 | 1046.5 | 2093.0 | 4186.0 |
| C# | 17.32 | 34.65 | 69.30 | 138.6 | 277.2 | 554.4 | 1108.7 | 2217.5 | 4434.9 |
| D | 18.35 | 36.71 | 73.42 | 146.8 | 293.7 | 587.3 | 1174.7 | 2349.3 | 4698.6 |
| D# | 19.45 | 38.89 | 77.78 | 155.6 | 311.1 | 622.3 | 1244.5 | 2489.0 | 4978.0 |
| E | 20.60 | 41.20 | 82.41 | 164.8 | 329.6 | 659.3 | 1318.5 | 2637.0 | 5274.0 |
| F | 21.83 | 43.65 | 87.31 | 174.6 | 349.2 | 698.5 | 1396.9 | 2793.8 | 5587.7 |
| F# | 23.12 | 46.25 | 92.50 | 185.0 | 370.0 | 740.0 | 1480.0 | 2960.0 | 5919.9 |
| G | 24.50 | 49.00 | 98.00 | 196.0 | 392.0 | 784.0 | 1568.0 | 3136.0 | 6271.9 |
| G# | 25.96 | 51.91 | 103.8 | 207.7 | 415.3 | 830.6 | 1661.2 | 3322.4 | 6644.9 |
| A | 27.50 | 55.00 | 110.0 | 220.0 | 440.0 | 880.0 | 1760.0 | 3520.0 | 7040.0 |
| A# | 29.14 | 58.27 | 116.5 | 233.1 | 466.2 | 932.3 | 1864.7 | 3729.3 | 7458.6 |
| B | 30.87 | 61.74 | 123.5 | 246.9 | 493.9 | 987.8 | 1975.5 | 3951.1 | 7902.1 |
Octave numbers follow scientific pitch notation, where middle C is C4 (261.63 Hz). DAWs number octaves differently: Ableton Live and Logic Pro call middle C C3, and FL Studio calls it C5. The frequency is the same; only the octave number changes.
The formula
f = 440 × 2^((n − 69) / 12)n is the MIDI note number: 69 is A4, 60 is middle C. Each semitone multiplies the frequency by the twelfth root of 2 (about 1.0595), and each octave doubles it.
What the numbers are good for
- Kicks: the low tone of most dance music kicks sits between about 40 and 70 Hz, from around E1 to C2. Match it to the root or fifth of your key. See how to tune your kick.
- Sub bass: E1 is 41.2 Hz. Notes much lower than that are hard to hear on most speakers, so many producers keep sub lines above about 40 Hz.
- EQ: when a sound rings at a frequency, the chart tells you which note it is, and whether it clashes with your key.
- Delay and reverb: these are timed to the tempo, not the pitch. For those, use the BPM to ms calculator.
237 free MIDI chord progressions
Every major and minor key and 17 genres as MIDI files, chords and bass on separate tracks. Our free sound pack comes with it. Royalty-free.
Questions
What frequency is middle C?
261.63 Hz, at A4 = 440 Hz. Middle C is C4 in scientific pitch notation, C3 in Ableton Live and Logic Pro, and C5 in FL Studio.
What frequency is A4?
440 Hz. It is the standard tuning reference the rest of the chart is built on.
What note is 50 Hz?
Close to G1, which is 49.0 Hz.
What note is 60 Hz?
Almost exactly between A#1 (58.27 Hz) and B1 (61.74 Hz), a hair closer to B1.
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