Guitar Capo Chart Explained: Every Key and Fret Combination

What is a capo chart?

A capo chart is a reference table that maps two inputs, the chord shapes you are playing and the fret your capo is placed on, to a single output: the actual sounding key. It answers the question every guitarist eventually asks: "If I put the capo here and play these shapes, what key am I in?"

The chart is a 12×12 grid. Rows represent the 12 possible open-position keys (the key of the chord shapes you are using). Columns represent fret positions 1 through 12. Each cell in the grid shows the resulting sounding key for that combination.

You can see the full interactive capo chart, every row, every fret, all 144 combinations, on the ChordSwitch Capo Calculator.

How to read the chart

Reading the chart is straightforward once you understand the two axes.

The row (left column): This is the key of your chord shapes, the key you would be in if there were no capo at all. If you are playing G major, Am, D, and Em shapes, you are in the key of G. Find the G row.

The column (top row): This is the fret your capo is placed on. If your capo is on fret 2, find the Fret 2 column.

The cell where they meet: This is the key your guitar is actually sounding in. In the example above, G shapes, capo fret 2, the intersection shows A. So you are playing G shapes but your guitar is producing chords in the key of A.

The math behind it is simple: a capo on fret N raises the pitch by N semitones. The chart just does that addition for all 144 combinations so you do not have to.

How to use the chart in reverse

Just as often, you already know the key you need to be in and you want to find which capo position gets you there from chord shapes you know. For this, use the chart in reverse.

Find the target key in the body of the chart. Then read left along that row to find the chord-shape key, and read upward to find the fret number. That is your answer: capo on that fret, play those shapes.

For example, you need to play in Bb. Scan the body of the chart for Bb. You will find it in several cells, because Bb is reachable from multiple combinations. Three common ones are: G shapes on fret 3, C shapes on fret 10 (less practical), or A shapes on fret 1. G shapes on fret 3 is by far the most common choice because G-position chord shapes are beginner-friendly and fret 3 is comfortable to play.

The most useful cells in the chart

While the full chart covers all 144 combinations, most real-world playing concentrates around a handful of the most practical rows and frets. These are the combinations that professional and amateur guitarists rely on most.

G shapes, the most versatile row: The G row is arguably the most useful row in the entire chart because G, Am, Bm, C, D, and Em are beginner-friendly open shapes. Placing the capo at different frets on the G row reaches: A (fret 2), Bb (fret 3), B (fret 4), C (fret 5), D (fret 7). These cover many common song keys.

D shapes, great for major-key songs: D shapes (D, Em, F#m, G, A, Bm) are another comfortable set for beginners. Capo on the D row at fret 2 gives E, fret 4 gives F#, fret 5 gives G (same as no capo, just an octave character difference), and fret 7 gives A.

C shapes, naturally full-sounding voicings: C shapes (C, Dm, Em, F, G, Am) are often the first set a guitarist learns. Capo on fret 2 gives D shapes, fret 3 gives Eb, fret 5 gives F, fret 7 gives G. The C row is practical for songs with flowing, open-sounding voicings.

Why the chart stops at fret 12

After 12 semitones, 12 frets, you have travelled a full octave and the note cycle repeats exactly. Capo on fret 12 with G shapes sounds like G, one octave higher than open G. In practice, this is not useful because fret 12 is where the neck meets the body of most guitars, leaving almost no room to play. Capos above fret 7 are used very rarely, mainly for deliberate tonal experiments, not for standard playing.

When the capo chart is more useful than a chord transposer

The capo chart answers a different question than a chord transposer. A chord transposer (like the Transpose tab on ChordSwitch) rewrites the chord names in a chart to reflect a new key. The capo chart tells you which fret and chord-shape combination gets you to that key without rewriting the chart at all.

Use the chord transposer when you need to share a chart with another musician and want the written chords to reflect the actual sounding key. Use the capo chart when you just want to know where to put the capo so you can play familiar shapes. For singers, combining both tools is common: transpose the chart to find a key that fits the vocal range, then use the capo chart to find the most comfortable way to play that key on guitar. Read the full guide on transposing chords for singers for how this workflow fits together.

A note about sharps and flats in the chart

Five notes in the chromatic scale have two names, C#/Db, D#/Eb, F#/Gb, G#/Ab, A#/Bb. The capo chart may display these using either sharp or flat notation depending on your preference. In the ChordSwitch capo calculator, the sharps/flats toggle at the top of the page controls which notation the chart uses. Both are correct; it is a matter of which convention the chart or song you are working from uses.

Common mistakes when reading a capo chart

The most frequent error is counting frets from the wrong reference point. The capo chart's fret number always means "capo placed on this fret," not "count this many frets up from where the capo already is." If you already have a capo on fret 2 and you move it up two more frets, you are now on fret 4 overall, not fret 2 again. Re-read the chart from fret 4, not from fret 2.

A second common mistake is treating the chord "shape" column as if it were the chord "name." Playing a G shape does not mean you are playing a G chord once the capo is on. G shapes with a capo on fret 2 sound like A chords, even though your fingers are still forming what looks like G, C, and D shapes. Guitarists new to capo work often keep calling the chords by their shape names out of habit, which causes confusion when playing with other musicians who are reading the actual sounding key.

A third mistake is assuming barre chord shapes behave differently from open shapes on the chart. They do not. A barred G shape three frets up the neck and an open G shape both belong to the "G shape" row if the finger pattern is the same relative shape. What matters for the chart is the shape family, not whether the shape happens to be played open or barred elsewhere on the neck.

Capo chart limits with alternate tunings

The capo chart assumes standard tuning, EADGBE. The underlying math, each fret raises pitch by one semitone, is true in any tuning. But the shape names in the chart, G shape, D shape, C shape, only correspond to the familiar open-position fingerings when the guitar is in standard tuning. In drop D, DADGAD, or open G tuning, fingering what you think of as a "G shape" produces a different chord entirely, so the shape column of a standard capo chart no longer applies.

Guitarists working in alternate tunings can still use the capo chart's core principle, count semitones from the fret number, but should not rely on the named shape rows. Instead, identify the open-tuning chord you are fingering, then add the fret number in semitones to find the sounding chord. Building a separate reference chart for a specific alternate tuning is common practice among guitarists who use that tuning regularly.

How capo placement affects what the chart predicts

The chart gives you the theoretical key, but the actual sound depends on how well the capo is seated. A capo placed too far back from the fret wire, closer to the middle of the fret space, can cause buzzing or make the string sound slightly flat, because the string is not being pressed cleanly against the fret. A capo placed at an angle across the neck, rather than parallel to the fret, tends to intonate unevenly across the strings, with the higher strings often sounding slightly sharp or flat relative to the lower ones.

Clamping tension matters too. Too little pressure and some strings will buzz or fail to ring clearly; too much pressure, especially with trigger-style or clamp capos, can pull the strings sharp, most noticeably on the thinner high strings. None of this changes what the chart says the key should be, but it does mean the chart's prediction only holds if the capo is seated correctly. Checking tuning with a tuner after clamping the capo is worth doing every time, particularly on frets 5 and higher where the frets are narrower and small placement errors have a larger relative effect.

Using the chart to match a singer's comfortable range

One of the most practical everyday uses of the capo chart is adjusting a song to fit a singer's voice without relearning any chord shapes. Say a song is written in the key of C, using C, Am, F, and G shapes, but the singer finds that key sits too low and wants the song a whole step higher, in D. Rather than relearning the song using D-shape chords, the guitarist keeps playing the familiar C shapes and places the capo on fret 2. The chord shapes under the fingers do not change at all; only the sounding key does.

This is especially useful in situations where multiple guitarists are playing together but prefer different chord shapes for the same song. One guitarist might use G shapes with a capo, while another plays the same song using open D-shape chords with no capo, and both end up in the same sounding key as long as the chart is read correctly for each capo position.

When not to reach for a capo at all

The capo chart is a convenience tool, not a rule. There are situations where playing the barre chords directly, or rewriting the chart into the new key, works better than capoing. Recording sessions that layer multiple guitar parts often use one guitar with a capo and one without, specifically to get two different tonal colors, brighter and more open versus fuller and lower, out of the same chord progression; using a capo chart to plan that layering is a common workflow.

A capo also will not help when playing alongside fixed-pitch instruments in a way that requires reading actual chord names, such as handing a chart to a pianist or horn section; those charts need to reflect the real sounding key rather than a shape family. And if a song's arrangement depends on specific open strings ringing under a chord, an open low E string as a drone note, for example, a capo above that string can remove the exact tone the arrangement was built around, in which case transposing the shapes instead of capoing preserves the part better.