Press Play for A at 432 Hz, then each guitar string below, tuned to that A.
432 Hz Tuning: 432 Hz sawtooth tone
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Sawtooth wave · both channels
432Hz
Period 2.31 ms
Wavelength 79.4 cm (31.3 in)
32 cents below A4
Ready. It starts quiet and fades in over half a second.
A steady tone can harm ears and speakers before it sounds loud. Hear nothing? Do not turn it up to find the tone: small speakers cannot play very low tones, and many adults cannot hear very high ones.
Percent of this tool's loudest. Your device volume does the rest.
A4 at 432 Hz, the tuning noteThe A above middle C, 8 Hz and about 32 cents under the 440 Hz standard (ISO 16). On a guitar it is the 1st string held at fret 5.
Guitar strings with A at 432 Hz, thickest first 6
6th string E2 at 432 pitch80.91 Hz, where standard pitch has 82.41 Hz. Held at fret 5 it sounds the 5th string's A, as in standard tuning.
5th string A2 at 432 pitch108 Hz exactly: 432 divided by 4, two octaves under the tuning A. Standard pitch has 110 Hz. Held at fret 5 it sounds the 4th string's D.
4th string D3 at 432 pitch144.16 Hz, where standard pitch has 146.83 Hz. Held at fret 5 it sounds the 3rd string's G.
3rd string G3 at 432 pitch192.43 Hz, where standard pitch has 196 Hz. The odd one out, as in standard tuning: fret 4, not fret 5, sounds the 2nd string's B.
2nd string B3 at 432 pitch242.45 Hz, where standard pitch has 246.94 Hz. Held at fret 5 it sounds the 1st string's E.
1st string E4 at 432 pitch323.63 Hz, where standard pitch has 329.63 Hz. Held at fret 5 it sounds the 432 Hz A this page opens on.
How it works
432 Hz tuning, also written A432, sets the A above middle C to 432 Hz in place of the standard 440. A guitar's strings keep their names, E A D G B E, and each sounds about 32 cents lower.
Read the full guide
How to tune a guitar to 432 Hz
1. Press Play to hear the tuning note itself, A at 432 Hz.
2. Press 6th string E2 at 432 pitch and ease your thickest string down to it. From standard pitch it is a small move, far less than one fret.
3. Press each string's row in turn, up to the first string, and match it.
4. Hold your first string at fret 5 and press A4 at 432 Hz, the tuning note. The two should be one note, with no slow pulsing between them.
The low E here is 80.91 Hz. The tones are sawtooth waves, so a small speaker still carries it by its overtones.
Questions and answers
What tuning is 432 Hz?
Not a new set of notes: standard tuning with its reference A moved from 440 hertz to 432 hertz. Chord shapes stay the same. The exact drop is 31.77 cents, where one fret is 100.
How do you tune to 432 Hz with a tuner?
Many electronic tuners let you choose a reference pitch other than A = 440. Set it to 432 and tune each string to its usual letter. If yours has no such setting but shows cents, stop at 32 cents flat.
Does tuning music to 432 Hz change anything but the pitch?
Only the pitch. Every note becomes 432/440 of its standard frequency, and the intervals between notes are untouched. Played beside an instrument at 440, the two As beat eight times a second.