444 Hz Tuner: Tune Any Instrument to A = 444 Hz
Tuner settings
🎶 Tune by ear 🎶
Our 444 Hz tuner is a free online tuner running at a reference pitch of A = 444 Hz. The reference pitch is the note every other note is derived from: setting it to 444 hertz instead of the standard 440 raises the A above middle C, and with it the entire instrument, by the same amount. The 444 Hz tuner above already has that reference set — click Start Tuner, allow your microphone and play a note, and it will name the nearest note and show how many cents sharp or flat you are against 444. It is fully chromatic, so it will tune anything you can play into a microphone, from a guitar to a violin to your own voice, and it is the reference pitch that puts C at 528 Hz. Nothing to install, nothing to pay, and the audio never leaves your browser.
Note frequencies at A = 444 Hz
444 Hz sits about 16 cents above 440 Hz — roughly a sixth of a semitone, and twice the gap that separates 440 from the 442 Hz most European orchestras use. It is far enough to hear plainly against a 440 Hz recording, and still nowhere near a semitone, so nothing about how you read or finger the music changes. Every note rises by that same 16 cents. The octave above middle C, at 440 Hz and then at 444 Hz:
- C4: 261.63 Hz → 264.00 Hz
- C#4: 277.18 Hz → 279.70 Hz
- D4: 293.66 Hz → 296.33 Hz
- D#4: 311.13 Hz → 313.96 Hz
- E4: 329.63 Hz → 332.62 Hz
- F4: 349.23 Hz → 352.40 Hz
- F#4: 369.99 Hz → 373.36 Hz
- G4: 392.00 Hz → 395.56 Hz
- G#4: 415.30 Hz → 419.08 Hz
- A4: 440.00 Hz → 444.00 Hz
- A#4: 466.16 Hz → 470.40 Hz
- B4: 493.88 Hz → 498.37 Hz
One number in that list explains most of the interest in 444 Hz: C4 lands on exactly 264.00 Hz, which puts C5 at 528.00 Hz. In equal temperament, A = 444 Hz is the reference that produces a 528 Hz C. That figure has a following well outside music, and whatever you make of the claims attached to it, the arithmetic is simply what it is — this tuner will get you there.
For any other octave, multiply the 440 Hz frequency by 1.00909.
Open string frequencies at 444 Hz
Tuning string by string, these are the targets at 444 Hz, lowest string first:
- Guitar (E A D G B E): 83.16, 111.00, 148.17, 197.78, 249.19, 332.62 Hz
- Bass (E A D G): 41.58, 55.50, 74.08, 98.89 Hz
- Ukulele (G C E A): 395.56, 264.00, 332.62, 444.00 Hz
- Violin (G D A E): 197.78, 296.33, 444.00, 665.25 Hz
- Viola (C G D A): 132.00, 197.78, 296.33, 444.00 Hz
- Cello (C G D A): 66.00, 98.89, 148.17, 222.00 Hz
Sixteen cents is more tension than 442 asks for but still far less than a half-step-up tuning, so a standard set of strings handles it without trouble. If you keep an instrument at 444 permanently, expect to touch the intonation.
Tune your instrument to 444 Hz
- Find a quiet room and put your instrument close to the microphone.
- Click Start Tuner and allow microphone access. Nothing is recorded or uploaded; the analysis happens in your browser.
- Confirm the reference reads 444 — this page sets it for you.
- Play one note at a time and let it ring. The tuner shows the nearest note and how many cents away from it you are.
- Tune each string or valve until the reading centres, working from the lowest upwards.
- Go round again. Every string you tighten pulls slightly on the others, and at 444 you are tightening all of them.
Because 444 Hz is above concert pitch on every string, approach each note from below and stop as soon as the tuner reads in tune. Overshooting is how a plain high E breaks.
History of 444 Hz tuning
Concert pitch has drifted upward for as long as anyone has tried to fix it. Stuttgart proposed 440 Hz in 1834, France legislated 435 Hz in 1859, London settled on 440 Hz in 1939 and the ISO published it as a standard in 1955 — and orchestras carried on rising anyway, because a higher pitch sounds brighter and no ensemble wants to be the dull one. Where much of Europe stopped around 442 or 443, 444 Hz sits just above the top of that range.
Its modern following comes from two directions that have nothing to do with each other. Some ensembles and soloists simply want the extra brilliance, particularly on strings, where higher tension gives a more focused sound. Others come to it through the 528 Hz C it produces, an interest that belongs to the alternative-tuning world rather than to the concert hall. Both arrive at the same reference pitch, and this tuner does not care which brought you here.
Who tunes to 444 Hz
- Players chasing brightness. String players in particular use a raised reference to get a more projecting, focused tone, and 444 Hz is about as far as that goes before instruments start protesting.
- Anyone working with 528 Hz material. A = 444 Hz is the equal-tempered reference that puts C at 528 Hz, so it is the tuning of choice for music written around that idea.
- Producers matching an existing recording. Plenty of tracks were recorded slightly sharp, whether by intent or by tape speed, and tuning your instrument to the record is easier than retuning the record.
- Anyone curious. Sixteen cents is enough to hear. Tune to 444, play something you know well, and the difference in character is not subtle.
Understand our 444 Hz tuner’s settings
The tuner above is our full chromatic tuner with the reference pitch already set for you. The first settings sit beside the tuner; the rest are behind Advanced settings.
The reference pitch of our 444 Hz tuner
This is the setting the page exists for, and it is already at 444 Hz. The address sets it, which means it takes precedence over anything you have saved before — this page opens at 444 Hz even if your usual reference is something else. You are not locked to it: type another value in the box or drag the slider and every note recomputes as you move. Any three digits followed by -hz in the address work the same way, so /432-hz-tuner, /440-hz-tuner and /442-hz-tuner open at those references, and /guitar-tuner/432-hz combines a reference pitch with an instrument.
Choose which microphone our 444 Hz tuner listens to
If your device has more than one input — a built-in microphone, a headset, an audio interface with your instrument plugged straight into it — pick the right one from the microphone list before you start. A direct signal from an interface is far steadier than a laptop microphone picking your instrument up across the room.
Set the sensitivity of our 444 Hz tuner
The confidence threshold decides how sure the detection algorithm has to be before it commits to a note. Raise it and the tuner ignores everything it is not certain about: fewer readings, but the ones you get are trustworthy. Lower it and it will follow a quieter or messier signal, at the cost of the occasional wrong note. Working at 444 Hz you are chasing a few cents, so a reading that holds still is worth more than one that reacts quickly.
Using our 444 Hz tuner in a noisy room
The noise gate sets a volume below which the tuner does not listen at all. Air conditioning, traffic, someone else practising in the next room — anything under the threshold is discarded before the pitch analysis runs. Raise it until the readout falls quiet when you stop playing, and leave it there.
Meter tuner or slider tuner
A matter of taste rather than accuracy. The Display the slider tuner switch swaps the needle for a horizontal slider; both read the same pitch to the same precision. Players tuning by feel tend to prefer the needle, players watching for drift over a long note tend to prefer the slider.
Save the settings of our 444 Hz tuner
Save settings stores your reference pitch, microphone, sensitivity, noise gate and display choice for next time. Reset settings puts all of them back to default. Note that the saved reference pitch applies across the site, so if you save here, our other tuners will open at 444 Hz too — which is usually what you want if 444 Hz is where you actually work.
To hear 444 Hz instead of reading it, our online tuning fork has it as a preset, and our online tone generator will hold it, or any other frequency, for as long as you like. Our online pitch detector shows the raw frequency of whatever you play, with no reference pitch in the way. For a specific instrument, start from our guitar tuner or our chromatic tuner.
