What does 432 Hz tuning mean?
This page keeps standard guitar intervals—E A D G B E—but calibrates the reference note A4 to 432 Hz instead of the widely used 440 Hz. Every target pitch is scaled by 432 ÷ 440, so the guitar remains internally in tune while sounding about 31.8 cents lower than standard concert calibration.
How to tune a guitar to A4 = 432 Hz
- Select the 432 Hz preset and allow microphone access.
- Pluck one string at a time, beginning with the low E.
- Loosen each string gradually because every target is below its 440 Hz equivalent.
- Center the meter for all six strings, then repeat the sequence once.
432 Hz target frequencies
| String | Note | 432 Hz target | 440 Hz standard |
|---|---|---|---|
| 6 | E2 | 80.91 Hz | 82.41 Hz |
| 5 | A2 | 108.00 Hz | 110.00 Hz |
| 4 | D3 | 144.16 Hz | 146.83 Hz |
| 3 | G3 | 192.43 Hz | 196.00 Hz |
| 2 | B3 | 242.45 Hz | 246.94 Hz |
| 1 | E4 | 323.63 Hz | 329.63 Hz |
Playing with other musicians
A guitar calibrated to 432 Hz will sound slightly flat beside an instrument calibrated to A4 = 440 Hz. Agree on one reference before rehearsing or recording. If a fixed-pitch instrument cannot be recalibrated, use its reference rather than mixing standards.
What 432 Hz does not change
The tuning is still standard E A D G B E, and chord shapes, scale patterns, and intervals are unchanged. Only the absolute reference pitch moves. Claims that 432 Hz provides medical or healing effects are not established by this tuner; this page is simply a precise pitch-calibration tool.