Open E tuner

Tune to Open E (E B E G# B E) with your phone or computer microphone. Press start, play a string and follow the needle.

Quick answer

Open E, low to high: E B E G# B E.

-
Press start, then play a string

Your browser will ask to use the microphone. Sound is processed on your device and never sent anywhere.

Strings: tap to hear the note, or to lock the tuner onto one string
Reference pitch

Open E: notes and frequencies

Open E: notes and frequencies with A4 = 440 Hz
StringNoteFrequency
6E282.41 Hz
5B2123.47 Hz
4E3164.81 Hz
3G#3207.65 Hz
2B3246.94 Hz
1E4329.63 Hz

Open E is E B E G# B E, from the lowest string to the highest. The open strings form an E major chord. It raises three strings, so it adds tension; Open D is the gentler choice.

How to tune

  1. Press Start tuner and allow the microphone.
  2. Play one string at a time and let it ring.
  3. Tune up if the needle sits left of center and down if it sits right. The note turns green within 3 cents.

Other tuners

Half step down tunerD standard tunerDrop D tunerDrop C tunerDrop B tunerOpen G tunerOpen D tunerOpen E tunerDADGAD tuner7-string guitar tuner7-string drop A tuner8-string guitar tuner8-string drop E tunerBass tuner5-string bass tunerUkulele tuner

Tuners for every setup

A clip-on works anywhere. A pedal tuner mutes your signal on stage.

As an Amazon Associate GuitarMath earns from qualifying purchases. How we choose gear.

Last updated November 14, 2026.