Tune any instrument to A4 = 432 Hz, about 32 cents below standard pitch. Every note the tuner shows is calculated from 432 Hz.
Press Start tuning, then play or sing a note
Detected note
Concert pitch
| Note | Frequency |
|---|---|
| C4 | 256.87 Hz |
| C♯4 | 272.14 Hz |
| D4 | 288.33 Hz |
| D♯4 | 305.47 Hz |
| E4 | 323.63 Hz |
| F4 | 342.88 Hz |
| F♯4 | 363.27 Hz |
| G4 | 384.87 Hz |
| G♯4 | 407.75 Hz |
| A4 | 432.00 Hz |
| A♯4 | 457.69 Hz |
| B4 | 484.90 Hz |
At A4 = 432 Hz, every note is about 32 cents below standard 440 Hz pitch. That is a little under a third of a semitone. Some musicians prefer the slightly darker sound.
There is no scientific evidence that 432 Hz has special healing or natural powers, so choose it because you like how it sounds. Guitarists can use the 432 Hz guitar tuner, which shows a target for each string.
| String | Note | Frequency |
|---|---|---|
| 6 | E2 | 80.91 Hz |
| 5 | A2 | 108.00 Hz |
| 4 | D3 | 144.16 Hz |
| 3 | G3 | 192.43 Hz |
| 2 | B3 | 242.45 Hz |
| 1 | E4 | 323.63 Hz |
Some musicians prefer the slightly lower, darker sound of A4 = 432 Hz, about 32 cents below standard pitch.
Press Start tuning and play a steady note. While this page is open, every target is calculated from 432 Hz. Your saved setting stays as it was.
About 31.8 cents, a little less than a third of a semitone.
No. That idea is popular online, but there is no scientific evidence for it. Pitch standards are simply rules that people agreed on.
No. This page uses 432 Hz only while it is open. Other pages keep your saved reference pitch.