Online mandolin tuner
In standard tuning, the courses (pairs of strings) of the mandolin, from course 4 to course 1, are G3/G3 D4/D4 A4/A4 E5/E5, thick string before thin, with concert A (A4) at 440 Hz. The lowest note is G3, at 196.00 Hz, and the highest is E5, at 659.26 Hz. Both strings of each course play the same note (unison).
–
— Hz — cents
Tap “Turn on tuner” and allow the microphone.
Both strings of each pair play the same note. Tune one string at a time, muting the other one of the pair with a finger.
Standard tuning
Standard mandolin tuning, in fifths like the violin: G, D, A, E. There are 4 pairs of strings, and both strings in each pair play the same note.
Notes: G3/G3 D4/D4 A4/A4 E5/E5.
How to tune the mandolin
The mandolin has 8 strings in 4 pairs, tuned in fifths like the violin: G, D, A, E (G3 D4 A4 E5). Both strings in each pair play exactly the same note. Tune one string at a time, muting the other one of the pair with a finger, then play the pair together: if the sound wobbles (a slow beat), the two are not yet equal; adjust just one of them until the wobble stops.
Notes and frequencies of each string
| Course | Note | Frequency |
|---|---|---|
| 4, both strings | G3 | 196.00 Hz |
| 3, both strings | D4 | 293.66 Hz |
| 2, both strings | A4 | 440.00 Hz |
| 1, both strings | E5 | 659.26 Hz |
How to use it
Tap “Turn on tuner”, allow the microphone and play one open string at a time. The tuner recognises the string and shows whether to tighten it (it is flat) or loosen it (it is sharp). Tap a string name to lock onto it and hear the reference note.
Frequently asked questions
What are the open-string notes of mandolin in standard tuning?
From course 4 to course 1 (thick string/thin string): G3/G3 D4/D4 A4/A4 E5/E5.
What is the frequency of the lowest note in this tuning?
It is G3, at 196.00 Hz (with concert A at 440 Hz). The highest is E5, at 659.26 Hz.
How do I tune the mandolin?
The mandolin has 8 strings in 4 pairs, tuned in fifths like the violin: G, D, A, E (G3 D4 A4 E5). Both strings in each pair play exactly the same note. Tune one string at a time, muting the other one of the pair with a finger, then play the pair together: if the sound wobbles (a slow beat), the two are not yet equal; adjust just one of them until the wobble stops.
Does the tuner work offline?
Yes. After the first visit (or once installed as an app), the pages open without a connection and pitch detection happens on your device.
What are cents?
A cent is one hundredth of a semitone. Up to 5 cents off is barely audible; the needle turns green in that range.
Can I change the reference A?
Yes: the − and + buttons set A4 anywhere from 430 to 450 Hz, to play along with a piano or a recording tuned differently. Your choice is saved.
Does the microphone record what I play?
No. The sound is analysed on the fly, inside the browser, and is never recorded or sent anywhere.