Advanced tuner online · expert mode
Advanced tuner online — full control over your tuning
A4 calibration, temperaments, capo, cent tolerance, microphone selection, a strobe dial, a stability graph and a live spectrum. Every setting is remembered in your browser.
E2, ±0 cents, target 82.41 hertz
Start the microphone and play a single string
Reading stability (10 s)±50 ct
Signal spectrum0–1 kHz
Strings
Tap to hearPitch and tuning
440 Hz
Concert pitch is 440 Hz; orchestras often tune to 442–443 Hz, baroque to 415 Hz.
Temperament
Offsets are relative to equal temperament, root C.
no capo
±5 ct
How far off the middle a string may sit and still count as in tune.
Sweetened tuning
Offsets are approximate — check against the maker's own chart. Six-string guitars only.
Audio input
Microphone
The list appears once microphone access is granted.
Input level0%
microphone off
Reference tone and settings
2.5 s
Remember settings in this browserOn — settings return after a reload