Guide to Guitar Chord Diagrams

Chord diagrams and picks - decorative image

Guitar chord diagrams are the simplest and most intuitive way to illustrate where to press the strings on the fingerboard to play a chord.

Chord diagrams are used in guitar chord charts, as well as in many songbooks and on web pages alongside lyrics, to help you focus on learning a song instead of looking up the chords elsewhere.

There are a couple of types of guitar chord diagrams:

1. vertically orientated

Vertically orientated guitar chord diagram

2. horizontally orientated

Horizontally orientated guitar chord diagram

The only difference between them really is how they are positioned.

• The vertical orientation diagram is the most commonly used on the net.

The six vertical lines represent the strings. The low E, A, D, G, B, and high E strings are positioned from the left to the right in the chord box.

The horizontal lines are the frets on your fingerboard. The top line of the diagram is the guitar nut, and each subsequent line towards the bottom represents the 1st, 2nd, 3rd, etc., fret accordingly.

The horizontal and vertical lines create a simple visualization of the fingerboard.

Illustration for the Guide to How to Read Guitar Chord Diagrams

Now, as an example, let's use the diagram of the C major chord to illustrate how to interpret it and play this chord.

C
C Major Chord - Guitar Diagram

The circles in the diagram tell you where to press the strings with your fretting hand. The numbers in the circles are the recommended, comfortable fingering.

It means you press:

  • the B string at the 1st fret with the 1st finger,
  • the D string at the 2nd fret with the 2nd finger,
  • and the A string at the 3rd fret with the 3rd finger.
Playing C Chord on the Guitar - a Fretting Hand Close-Up

When talking about guitar playing, the word "fret" can refer to both the space between two adjacent metal strips and the metal strip itself (the exact meaning is determined by the context).

So when you read "press the 5th string at the 3rd fret", it means you press the string against the fingerboard between the 2nd and 3rd metal strips.

Now let's talk about the symbols at the top line of the chord box that represent the guitar nut:

X and O symbols on the guitar diagram

A "X" symbol says to avoid the string below it. You don't press and don't strum this string.

A "O" symbol indicates an open string. You don't press this string with your fretting hand, but you need to strike it with your strumming hand when playing a chord.

So in order to play the C major chord, you need to avoid strumming the low E string and strum only the open strings and the strings you're pressing with your fretting hand:

A → D → G → B → high E.

Another type of vertical guitar chord diagram you may find online is a very compact one:

C major chord:  32 1
               x32010

The top row is the fingering. The bottom is the frets you need to press.

• In the horizontally orientated chord diagrams, the horizontal lines are the strings, and the vertical are the frets.
Horizontally oriented guitar chord diagram
 

Barre chord notation

Note: barre chords are also often called bar chords.

Barre is a way to press down on a few or all strings with one finger simultaneously by laying it down across these strings.

Playing different kinds of bar chords (fretting hand)

In guitar chord diagrams, a barre is illustrated as a flat or arched line across a few strings.

The number near this line shows on which fret you should press the barre. If there's no number, you count from the nut.

Here are a few different instances of bar chord diagrams:

Bb
A guitar chord diagram for the B flat major chord
Em7
A guitar chord diagram for the E minor seventh chord
F
A guitar chord diagram for a simplified version of the F major chord
D
A guitar chord diagram for the D major chord, which is played farther away from the guitar nut

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This article was last updated on August 09, 2025