What are the notes of Open A tuning?

Open A tuning on guitar is E A E A C♯ E, from the lowest string to the highest.

How do I tune to Open A from standard tuning?

Starting from standard (E A D G B E): string 4 up a whole step, string 3 up a whole step, string 2 up a whole step. Every other string stays the same. Use the tuner above to check each string.

Is Open A tuning bad for my guitar?

No. Changing tuning is completely safe. Just tune gradually, and when raising pitch go slowly so you don't over-tighten a string. After a big change, the neck can take a day to settle, so check your tuning again.

Open A Tuning Online: E A E A C♯ E Guitar Tuner

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String chart

String 1 is the thinnest. Frequencies are exact at A4 = 440 Hz; change the reference on the A4 knob.

StrNoteFrequencyFrom std.

1EE4 · Mi329.6 Hz—

2C♯C♯4 · Do♯277.2 Hz▲ a whole step

3AA3 · La220.0 Hz▲ a whole step

4EE3 · Mi164.8 Hz▲ a whole step

5AA2 · La110.0 Hz—

6EE2 · Mi82.41 Hz—

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Tuning your guitar to Open A

Automatically with the microphone, or by ear: tap any note on the headstock to hear a real recorded reference.

1
Allow microphone access when your browser asks. The audio is analysed on your device and never uploaded.
2
Pluck one string at a time and let it ring. The tuner detects which string you're playing.
3
If the needle is left of centre the string is flat, so tighten it. If it's right of centre the string is sharp, so loosen it.
4
Turn the peg slowly until the note turns green and the needle sits in the middle. Then move on to the next string.
5
Go round once more: tuning one string slightly changes the tension on the others.

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Guitar tunings

26 tunings, all free. Notes listed from the lowest string.

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Questions & troubleshooting

What are the notes of Open A tuning?: Open A tuning on guitar is E A E A C♯ E, from the lowest string to the highest.
How do I tune to Open A from standard tuning?: Starting from standard (E A D G B E): string 4 up a whole step, string 3 up a whole step, string 2 up a whole step. Every other string stays the same. Use the tuner above to check each string.
Is Open A tuning bad for my guitar?: No. Changing tuning is completely safe. Just tune gradually, and when raising pitch go slowly so you don't over-tighten a string. After a big change, the neck can take a day to settle, so check your tuning again.

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