Hertz to note name
Type a value in Hz to get it in note instantly.
A4note
That's about the same as concert A. That is about 0 semitones from concert A.
Convert the other way: note to Hz
What it means
What does that sound like?
Based on equal temperament with A4 at 440 Hz. Orchestras sometimes tune to 442 or 443, shifting everything slightly.
The math
How to convert Hz to note
Pitch is logarithmic: f = 440 × 2^((note − 69) ÷ 12). Every octave doubles the frequency and holds 12 semitones.
Example: 440 Hz = A4 note.
Every unit
Your pitch in every unit
Tables
Hz to note conversion table
| Hz | note |
|---|---|
| 55 Hz | A1 note |
| 110 Hz | A2 note |
| 220 Hz | A3 note |
| 261.63 Hz | C4 note |
| 330 Hz | E4 +2¢ note |
| 440 Hz | A4 note |
| 523.25 Hz | C5 note |
| 660 Hz | E5 +2¢ note |
| 880 Hz | A5 note |
| 1,760 Hz | A6 note |
note to Hz conversion table
| note | Hz |
|---|---|
| G3 note | 195.998 Hz |
| D8 note | 4,698.64 Hz |
| E17 note | 2,700,310 Hz |
| A♯20 −37¢ note | 29,904,500 Hz |
| F♯26 note | 1.552×10⁹ Hz |
| G♯35 note | 8.919×10¹¹ Hz |
| G42 +25¢ note | 1.093×10¹⁴ Hz |
| C54 note | 2.946×10¹⁷ Hz |
| E72 note | 9.729×10²² Hz |
| G♯145 note | 1.158×10⁴⁵ Hz |
Quick answers
Quick answers
- How many note is 1 Hz?
- 1 Hz is C-4 −38¢ note.
- How many note is 10 Hz?
- 10 Hz is D♯-1 +49¢ note.
- How many note is 440 Hz?
- 440 Hz is A4 note.
The units
About these units
Hertz (Hz)
Cycles per second, the physical frequency of the note.
Note name (note)
The nearest note in scientific pitch notation (A4 = 440 Hz), with the offset in cents.
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