Tune the Strings

Guitar Tuner

Tune your acoustic or electric guitar with your microphone, or by ear with reference notes. Standard and alternate tunings included.

–

Press Start and allow the microphone. Audio stays on your device.

Guitar string notes

Standard (E A D G B E)
NoteFrequency (A4 = 440 Hz)
E282.41 Hz
A2110.00 Hz
D3146.83 Hz
G3196.00 Hz
B3246.94 Hz
E4329.63 Hz
Drop D (D A D G B E)
NoteFrequency (A4 = 440 Hz)
D273.42 Hz
A2110.00 Hz
D3146.83 Hz
G3196.00 Hz
B3246.94 Hz
E4329.63 Hz
Half step down (Eb Ab Db Gb Bb Eb)
NoteFrequency (A4 = 440 Hz)
Eb277.78 Hz
Ab2103.83 Hz
Db3138.59 Hz
Gb3185.00 Hz
Bb3233.08 Hz
Eb4311.13 Hz
DADGAD
NoteFrequency (A4 = 440 Hz)
D273.42 Hz
A2110.00 Hz
D3146.83 Hz
G3196.00 Hz
A3220.00 Hz
D4293.66 Hz
Open G (D G D G B D)
NoteFrequency (A4 = 440 Hz)
D273.42 Hz
G298.00 Hz
D3146.83 Hz
G3196.00 Hz
B3246.94 Hz
D4293.66 Hz

Listed in the same order as the string buttons in the tuner.

How to tune a guitar with this tuner

  1. Choose a tuning, press Start tuner and allow microphone access.
  2. Pluck the low E string and let it ring. The tuner picks the nearest string automatically.
  3. Turn the tuning peg until the needle is centred and green. Tune up to the note from below.
  4. Work across all six strings, then check them all once more.

Guitar tuning tips

Electric guitars

Unplugged electric guitars are quiet. Hold the guitar near the microphone or play through an amp at low volume.

Mute other strings

Rest your fretting hand lightly on the strings you're not tuning so they don't ring along.

Tune by ear with reference notes

No microphone? Press any string button above to play its note for three seconds, then adjust the string until the two sounds stop "beating" (wobbling) against each other. Headphones or decent speakers make low notes much easier to hear.

FAQ

What are the notes of standard guitar tuning?

E2 (82.41 Hz), A2 (110 Hz), D3 (146.83 Hz), G3 (196 Hz), B3 (246.94 Hz) and E4 (329.63 Hz), from the thickest string to the thinnest.

How do I tune to drop D?

Select Drop D and lower only the low E string down to D2 (73.42 Hz); the other five strings stay the same.

Other tuners