🌟 What This Does

Most music uses A4 = 440.0 Hz as its tuning base. But solfeggio tones like 528.0 Hz don't always line up with piano keys.

This tool finds:

• Which note is closest to your Solfeggio frequency,
• What A4 pitch would make it match exactly,
• How many "cents" (tiny pitch steps) that is from normal tuning,
• And what the full scale sounds like with that new tuning.

🔊 Generate a pure tone, download a loopable WAV for your DAW, or verify with live detection!

How to Use the Result

1. Choose a frequency from the list. The calculator shows the closest note and the A4 tuning that puts that note exactly on the frequency.
2. Set the master tuning in your DAW, keyboard or synth to that A4 value. For 528 Hz it's 444.0 Hz. If your instrument sets fine tuning in cents rather than hertz, enter the cents figure instead (+15.64 for 528 Hz).
3. Play the note shown. With A4 at 444.0 Hz, C5 sounds at 528 Hz, and every other note stays in tune with it.
4. Press Play to hear the target tone, or download the WAV and put it on a track to check your tuning by ear. The live tone detector checks the pitch through your microphone.

Set any hardware synths to the same A4 value as your DAW, or the layers will clash. Our guide to tuning your DAW or keyboard to solfeggio frequencies covers the settings in more detail.

What the Cents Figure Means

A cent is one hundredth of a semitone, so there are 1,200 cents in an octave. The cents figure tells you how far the solfeggio tone is from the nearest note in standard tuning (A4 = 440 Hz). 741 Hz is only 2.36 cents from F#5, so you hardly need to retune at all. 285 Hz is 48 cents from C#4, almost halfway to D4.

All Nine Frequencies at a Glance

285, 639, 852 and 963 Hz sit almost halfway between two notes, so you can also tune the other way: A4 = 427.0 Hz puts D4 on 285 Hz, 426.5 Hz puts E5 on 639 Hz, 426.0 Hz puts A5 on 852 Hz, and 454.5 Hz puts A#5 on 963 Hz. Pick whichever is closer to the tuning of your other instruments.

About the Traditional Meanings

The names in the list, such as "Love / DNA Repair" for 528 Hz, come from the modern solfeggio tradition. The frequencies were put forward by Dr. Joseph Puleo in the 1970s and made popular by Leonard Horowitz's 1999 book. There is no scientific evidence that these tones repair DNA or have the other effects in the names. Many people still use them for meditation and relaxation music, and this calculator lets you do that in tune with other instruments. Solfeggio Frequencies in Music looks at the history and the evidence in more detail.

More on Solfeggio Frequencies

• Solfeggio Frequencies: The Complete Guide
• How to Tune Your DAW to Solfeggio Frequencies
• Solfeggio Frequencies in Music
• Try chord ideas on the free virtual piano