Standard tuning E A D G B E · Drop D, DADGAD and more
Guitar tuner
Pluck one string at a time and see which note it is, and how many cents sharp or flat. Tap a string to hear its note and tune by ear. Standard tuning, E A D G B E, with Drop D, half step down, DADGAD and open tunings in Settings.
How to use it
- Tap Listen and allow the microphone. Pluck one open string and let it ring: the tuner finds which string it is, names the note and shows how far off it is.
- Turn that string's tuning peg until the needle sits in the middle and it says In tune, then the next string. Tap a string to hear its note, if you'd rather tune by ear. For another tuning, open Settings.
Standard guitar tuning
From the thickest string to the thinnest: E, A, D, G, B, E. The two E strings are two octaves apart, and every pair of neighbouring strings is a fourth apart except G to B, which is a major third. Many players remember it as "Eddie Ate Dynamite, Good Bye Eddie".
| String | Note | Hz at A440 |
|---|---|---|
| 6th (thickest) | E2 | 82.41 |
| 5th | A2 | 110.00 |
| 4th | D3 | 146.83 |
| 3rd | G3 | 196.00 |
| 2nd | B3 | 246.94 |
| 1st (thinnest) | E4 | 329.63 |
Tuning a guitar by ear
Tune one string to a reference, then each string to the one before it. Tap the low E here and tune your 6th string until there is no wobble between them. Then press the 6th string at the 5th fret: that note is A, so tune the open 5th string to it. The 5th fret gives the next string's note for every pair, except the G string, where the 4th fret gives B.
Listen for beating: two notes that are nearly the same wobble against each other, slower as they get closer. When the wobble stops, they match.
Alternate tunings
Drop D lowers only the 6th string a whole step, to D, so the bottom three strings make a power chord with one finger. Half step down lowers every string a semitone, to E♭ A♭ D♭ G♭ B♭ E♭. DADGAD and the open tunings (Open G, Open D, Open E) retune several strings so the open strings ring as a chord. All of them are in Settings, under Tuning.
Free tools by Stackapella
You can see your pitch. Now learn to land it by ear.
Stackapella teaches you to sing harmony one part at a time, right in your browser.
- A guide sings your partHear your line over the others, slow it down, then take your turn.
- Your notes light upEach note shows where you landed, and a hint when to go up or down.
- Record every part yourselfStack your takes in time until you're the whole choir.
- Every course free
- Open source
- No ads, no tracking
Questions
What are the notes of the guitar strings?
In standard tuning, E, A, D, G, B and E, from the thickest string to the thinnest: E2, A2, D3, G3, B3 and E4.
How do I tune a guitar without a tuner?
Tune the low E to a reference, then use the 5th fret: the 6th string at the 5th fret gives the open A, the 5th string the open D, the 4th string the open G, and the 2nd string the open high E. The one exception is the G string, where the 4th fret gives the open B.
Can I tune an electric guitar with my phone?
Yes, unplugged: hold the phone close to the strings and pick firmly, because an electric guitar is quiet without an amp. Plugged into an amp, put the phone near the speaker.
Why does my guitar go out of tune?
New strings stretch for their first days, so keep retuning and they settle. Temperature, humidity and playing hard move the tuning too. Tune up to each note: if a string is sharp, go below the note and come back up, so the string holds.
What is Drop D tuning?
Standard tuning with the 6th string lowered a whole step, from E to D. Pick Drop D under Tuning in Settings and the string targets change to D A D G B E.
Is my playing recorded?
No. The microphone opens only when you tap Listen, your guitar's pitch is worked out on this device, and nothing is recorded, kept or sent.
More free tools
No account, no ads. Each one keeps working offline once you've opened it.
See all 17 tools