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LESS TUNING. MORE PLAYING.

Standard Guitar Tuner: E A D G B E.

The familiar six. Your starting point for almost everything.

Tune open strings first. Fit your capo, then switch on “Check with capo on”.

StandardE A D G B E
REFERENCE TONEA4 = 440 Hz
E2
E · 6th string82.41 Hz

Choose a string below to hear its note.

PLAY A STRINGThickest Thinnest
6 strings · 3 seconds each
Sound & advanced settings

A gentle ping follows a steady note within 5 cents. Its volume follows the sound slider. Microphone audio stays on your device.

Check your intonation.

Compare one open string with the same string pressed at fret 12. Remove your capo and mute the other strings.

  1. 1. Tune and measure the open string
  2. 2. Press at fret 12 and measure again

Press just behind fret 12 with normal pressure. Do not play a harmonic. Repeat the comparison to confirm the result.

Check your six strings.

Press start, then sweep gently across all six open strings, from thickest to thinnest. Let them ring together.

Experimental: overlapping notes can be unclear. Select any result to measure that string alone in this window.

Check a known reference.

Play a steady reference from another device or instrument whose frequency you know. Enter that frequency below.

This compares your input with the reference you supply. It is not a certified calibration. Only numbers are saved, never audio.
Acoustic, electric & classicalFree. No download. Just play.

By ear: click a note, match your string, then move to the next. Keyboard: 1–6 to play · Esc to stop

KNOW YOUR TUNING

Standard: E A D G B E

Tune the open strings with the capo off. Start at the thickest string, work across, then give all six one more check.

The table shows the open-string setup at A4 = 440 Hz. For capo pitches, use the capo controls above.

Standard notes and frequencies from thickest to thinnest
StringNoteHzFrom standard
6 · thickestE282.41E2
5A2110.00A2
4D3146.83D3
3G3196.00G3
2B3246.94B3
1 · thinnestE4329.63E4

THE TUNEGUITAR GUIDE

Understand Standard

TuneGuitar guide · Updated 6 October 2026 · How we prepare our guides

The B string is the exception

Standard tuning is mostly built from fourths: E to A, A to D, D to G and B to E are five semitones apart. G to B is only four. This explains why a fingering moved across the B string often needs an adjustment. A useful check is to fret the G string at fret 4 and compare it with open B; using fret 5 there would tune B a semitone too high.

Use octaves to catch the wrong E

The lowest E2 and highest E4 are two octaves apart. Matching the letter E alone is not enough. Tune string 6 to 82.41 Hz and string 1 to 329.63 Hz at A4 = 440 Hz. The low E fretted at 12 should match the fourth-string E at fret 2. This is a listening cross-check, not a substitute for checking each open target.

Make a repeatable baseline

Save a standard setup before experimenting with alternate tunings. After an experiment, restore the whole preset rather than raising only the lowest string: a previous DADGAD session also changed strings 1 and 2. Play a gentle open chord after the second tuning pass. If open notes read correctly but chords sound sharp, investigate fretting pressure and intonation before changing the reference pitch.

Your string-by-string route from standard

This is a comparison of target pitches, not a recommendation to use every tuning on every guitar. Start from the tuning your instrument actually has. Use the directions and the octave labels together.

Standard → Standard
StringStartTargetAdjustment
6E2E2Keep this target
5A2A2Keep this target
4D3D3Keep this target
3G3G3Keep this target
2B3B3Keep this target
1E4E4Keep this target

Nearby tunings, compared by their actual notes

These are the three closest six-string presets by total semitone movement from this setup. The ranking describes target changes, not playing difficulty or physical suitability. A familiar name can hide a different middle-string layout.

What changes from this tuning?
Next tuningAll target notesStrings that change
Drop DD2 · A2 · D3 · G3 · B3 · E46
Open E minorE2 · B2 · E3 · G3 · B3 · E45, 4
Open EE2 · B2 · E3 · G♯3 · B3 · E45, 4, 3

Try the setup with a sourced arrangement

These links refer to named parts in linked arrangements. They do not establish a universal tuning for every recording or live version.

READY FOR THE FIRST CHORD

Tune for a song.

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GOOD TO KNOW

Questions about Standard

Why check the strings twice?

Changing string tension can slightly shift the other strings. A second pass catches the small changes and gives you a more settled guitar.

Why do both outside strings show E?

They share a note name but are two octaves apart: the thickest string is E2 and the thinnest is E4. Use the string buttons and octave labels to keep them distinct. A correct letter alone does not establish a correct target.

Why can the open strings sound right but a chord sound sharp?

The open-string check does not measure what happens when you fret. Excess finger pressure, a capo or the instrument’s setup can change the sounding pitch. Check a lightly fretted note with the intonation tool before altering already-correct open targets.

Privacy & cookies

Your guitar audio is processed entirely on your device. We do not record it, store it or upload it.

Saved guitars, setlists and your ping preference are stored in this browser on this device. You can delete each guitar in “My guitars”. Clearing site data removes these settings and the offline cache. The offline cache contains the tuner’s pages and the code that generates reference tones, never microphone recordings.

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Last updated 13 September 2026.

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Your own tuning.

Enter 4 to 12 notes in physical string order, from the thickest side. Include the octave, for example E2 A2 D3 G3 B3 E4. Use notes suitable for your strings and instrument.

Save your setup in My guitars, or share its link.

Your setlists.

A setlist keeps songs in playing order, with the tuning and capo for each one. Open a song’s setup in the tuner when you are ready to play.

Create your first setlist

Give your practice session a name, then add songs.

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