Choose a root and quality, then check the exact notes that your Open G strings produce.
OPEN G CHORD LIBRARY
G major / D0 0 0 0 0 0
Open G · D2 G2 D3 G3 B3 D4 Low D is the fifth; this is not Drop G or Open D.
Each choice is checked against the Open G strings. Fret codes run low to high; 0 means open and X means muted.
Strings are shown from the low D string to the high D string. The table gives each actual sounding pitch and the bass. Finger row: suggested finger — 1 index · 2 middle · 3 ring · 4 pinky; – not fretted. A bar means one finger holds several strings.
SELECTED SHAPE
G major / D
Open G · 0 0 0 0 0 0
Sounding notes, string six to string one
String
Fret
Note
Role
6 · D
O
D2
Perfect fifth
5 · G
O
G2
Root
4 · D
O
D3
Perfect fifth
3 · G
O
G3
Root
2 · B
O
B3
Major third
1 · D
O
D4
Perfect fifth
What is checked: every listed fret is applied to D–G–D–G–B–D, then the resulting pitch classes are compared with the selected quality. The open six-string shape is G major over D; muting the low D in X 0 0 0 0 0 gives a G-root bass. Positions are pitch references, not promises about comfortable fingering.
HOW OPEN G CHORDS WORK
The low D changes the voicing, not the chord name
Open G tuning is D–G–D–G–B–D. The pitch classes are D, G, and B, so all six open strings form a G major chord. The lowest note is D, the fifth of G, which makes the open voicing G/D. That distinction matters when you compare an all-open shape with a G-root-bass shape.
Open G is not Open D or Drop G.Open D tuning chords use D–A–D–F#–A–D. Drop G is a different tuning label and should not be used as a shortcut for this six-string D–G–D–G–B–D layout. Tune each string to the notes shown above before using these charts. Put a capo at fret 2 and you get the same notes as Open A tuning.
The note table labels physical pitches with sharps. For example, A# and B♭ are the same sounding pitch; B♭ is the usual spelling for the minor third of G minor.
Hear shape plays the selected table notes with recorded acoustic-guitar samples. Copy shape includes the current frets, sounding notes, and bass. Download chart exports an SVG of that verified position, while Download MIDI encodes the same actual notes. Changing the root or quality updates these outputs together.
Three strings drop a whole step; D, G, and B in the middle stay unchanged.
G / D0 0 0 0 0 0low D ringsGX 0 0 0 0 0low D muted
Both shapes contain G, B, and D; the lowest sounding string changes the inversion.
Move major shapes
A full barre keeps the Open G interval pattern and transposes the major set. The low string is the fifth, so the moved chord may have a non-root bass. Check the table when the bass matters.
For C major, this calculator gives 5 0 5 5 5 5: G2, G2, G3, C4, E4, G4. The low G makes this C/G.
Build other qualities carefully
Minor, seventh, sus, add, and extended shapes alter or mute selected strings. The picker only publishes positions whose calculated notes match the chosen pitch set.
For G minor, 0 0 0 3 3 0 sounds D2, G2, D3, A#3, D4, D4: Gm/D. For G7, 0 0 0 0 0 3 adds F4 while D2 stays in the bass: G7/D.
Play G, C and D with one finger
Fret 7 gives D (A D A D F# A), the V of G. With the open strings as the I and the fret 5 shape above as the IV, those are the three chords that carry most songs in G. Tap each chord, then play the three in a row.
Minor and seventh chords need a different shape
A straight barre only makes major chords, because the major 3rd (B in G) sits on string 2. For a minor or seventh chord, one or two strings have to move off the barre. The shapes below come from the chord tool above; tap a row to load it there.
Chord
Frets (low → high)
Notes
2 0 2 0 0 2
E2 · G2 · E3 · G3 · B3 · E4
2 2 2 2 1 2
E2 · A2 · E3 · A3 · C4 · E4
0 0 0 0 0 3
D2 · G2 · D3 · G3 · B3 · F4
5 4 5 5 5 5
G2 · B2 · G3 · C4 · E4 · G4
COMMON QUESTIONS
Open G chord questions
Why is the open chord G if the lowest string is D?
The open strings contain D, G, and B, the three pitch classes of G major. D is the fifth in the bass, so the full voicing is G/D rather than D major; D major would need F#.
Is there one correct Open G chord shape?
No. A valid voicing needs the intended chord tones, and duplicates or a different bass can change the sound without changing the chord quality. Read the fret code, sounding notes, and bass together.
Can I use these chords in Open G tuning?
Yes. Tune to D–G–D–G–B–D first, choose a root and quality, then use Hear shape, Copy shape, Download chart, or Download MIDI for the selected verified position.
What chords can you play in Open G tuning?
Any chord: pick a root and quality in the tool above. The easiest are major chords, because one finger across all six strings makes G at the open position, C at fret 5 and D at fret 7.
How do you tune to Open G?
Lower string 6, string 5 and string 1 by a whole step each, to D, G and D. The other three strings stay as they are. The string chart above lists every string.