Open G tuning

Open G tuning is D G D G B D, from the thickest string to the thinnest. From standard, lower the 6th, 5th and 1st strings a whole step. Strum the open strings and you hear a G major chord.

Lodestone for iPhone shows these strings too, with the one you're tuning lit up. 99¢, once.

Open G tuning notes and frequencies

Diagram of open g tuning: six strings tuned D G D G B D, from the thickest string to the thinnest.

String	Note	Frequency	From standard
6th	D₂	73.42 Hz	E → D whole step down
5th	G₂	98.00 Hz	A → G whole step down
4th	D₃	146.83 Hz	no change
3rd	G₃	196.00 Hz	no change
2nd	B₃	246.94 Hz	no change
1st	D₄	293.66 Hz	E → D whole step down

Frequencies use A4 = 440 Hz. Strings are numbered from the thinnest.

Because the open strings already make a chord, open G is a favorite for slide guitar: lay the slide across any fret for a major chord.

Tap a string above to hear its note, or turn on the mic: the string you're tuning lights up and glows brighter as you get close.

How to tune to Open G

Lower the 6th string from E to D.
Lower the 5th string from A to G.
Lower the 1st string from E to D. The D, G and B strings stay put.

Questions

What chord do the open strings make in open G?

G major: the notes are G, B and D.

More tunings

Standard E A D G B E
Drop D D A D G B E
Half step down E♭ A♭ D♭ G♭ B♭ E♭
D standard D G C F A D
Drop C C G C F A D
DADGAD D A D G A D
Open D D A D F♯ A D
Bass tuner E A D G
Ukulele tuner G C E A
Violin tuner G D A E

Lodestone for iPhone

Open Lodestone and play. It's already listening. Pick your instrument to see its strings, with the one you're tuning lit up. 99¢, once. No ads, no accounts, no subscription.