432 Hz Tuner
Tune to A = 432 Hz using your microphone. The tuner below is already set to 432 — press Start Recording and pluck a string. Every target is recalculated for you.
Auto-select string
Switches to string automatically
Target 80.91 Hz · A4 = 432 Hz
Action Required
Start tuner and pluck highlighted note.
Peg Rotation & Offset
Standby
Headstock Alignment
Tap a peg to tune that string specifically.
Instrument
Tuning Preset
Reference Pitch
Concert pitch for A4. 440 is the standard; many orchestras use 442.
Quick Tuning Guidelines
- 1.Tap the Start Recording button at the top to initialize your microphone.
- 2.Pluck one string cleanly at a time. Let it vibrate naturally to get a continuous frequency reading.
- 3.Adjust your tuning pegs until the dial centers in the green zone (around 0 cents).
- 4.Watch indicators: amber is the currently selected note, green is the automatically detected audio feed.
String-by-String Frequency Chart
These are the exact target frequencies this tuner listens for, at A4 = 432 Hz equal temperament. String 1 is the thinnest (highest) 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 |
How to Tune to 432 Hz
- Press Start Recording on the tuner above and allow microphone access.
- The reference pitch is already set to A4 = 432 Hz, shown next to the target frequency.
- Pluck the low E string. Its 432 target is 80.91 Hz rather than 82.41 Hz. Tune until the needle centres at 0 cents.
- Work across the remaining strings. The tuner still names them E A D G B E — only the frequencies have moved.
- Run a second pass. Lowering six strings changes the pull on the neck, and the first strings will have shifted slightly.
If your guitar was at 440 a moment ago, every string is about 32 cents sharp of its new target. That is a small turn of each peg — less than a third of the way to the next semitone down.
What Changes at 432 Hz
Concert pitch is the frequency everything else is measured from. At the modern standard, A4 is 440 Hz; at 432 it is 8 Hz lower. Because tuning is proportional, every note on the instrument drops by the same ratio — 432/440, or about 31.8 cents.
- Intervals are untouched. An octave is still an octave and a fifth is still a fifth, so every chord shape and scale works exactly as it did.
- The sound is a little lower and slacker. Many players describe it as warmer. The difference is subtle, and much of it is the slightly lower string tension.
- You leave the standard grid. Play along with a 440 recording and you will sound flat by about a third of a semitone.
The 432 Hz Frequencies
The chart above shows every string’s target at 432. For comparison with standard pitch:
- Low E: 80.91 Hz (440: 82.41 Hz)
- A: 108.00 Hz (440: 110.00 Hz)
- D: 144.16 Hz (440: 146.83 Hz)
- G: 192.43 Hz (440: 196.00 Hz)
- B: 242.45 Hz (440: 246.94 Hz)
- High E: 323.63 Hz (440: 329.63 Hz)
Other Reference Pitches
432 is not the only alternative. The settings panel under the tuner lets you set A4 anywhere from 415 to 466 Hz:
- 442 or 443 Hz — common in European orchestras, for a slightly brighter sound.
- 415 Hz — the usual pitch for baroque ensembles playing period instruments, a semitone below 440.
- Matching a recording — older recordings and some pianos sit a few hertz away from 440. Nudge the reference until the open strings agree with the track.
The tuner remembers the reference pitch you choose on this device, so the other tuner pages open at your last setting. This page always opens at 432.
Want the full background? Read 432 Hz vs 440 Hz Tuning, or go back to the standard 440 Hz guitar tuner.
Frequently Asked Questions
What does tuning to 432 Hz mean?
It means the A above middle C is set to 432 vibrations per second instead of the standard 440. Every other note moves down by the same proportion — about 31.8 cents, just under a third of a semitone — so chords, scales, and tab all work exactly as before.
Can I use this for bass, ukulele, or violin?
Yes. Open the settings panel under the tuner and pick your instrument; the reference stays at 432 and every string is retargeted. You can also set any other reference pitch there, from 415 to 466 Hz.
Is 432 Hz better than 440 Hz?
It is a matter of taste. Claims that 432 is healthier or more natural have not held up in blind listening tests — most people cannot tell the two apart without a reference. Some players do prefer how their instrument feels and sounds a little lower, and that is a perfectly good reason to use it.
Will I be in tune with other musicians?
Only if they also tune to 432. Recordings, backing tracks, keyboards, and most other players use 440, and against them a 432-tuned guitar sounds noticeably flat.
Does 432 Hz change string tension or my setup?
Very slightly. Dropping about a third of a semitone lowers the tension on each string by roughly 3.6%, far less than tuning a half step down. Action and intonation are effectively unchanged.