Capo Calculator

A capo moves the nut. The chord shape you play stays the same; the actual pitch goes up one semitone per fret.

SHAPE (chord fingering) CAPO FRET
Playing a G shape with the capo on fret 2 sounds as A.

Reference table

ShapeCapo 0Capo 1Capo 2Capo 3Capo 4Capo 5Capo 7
CCC#DD#EFG
GGG#AA#BCD
DDD#EFF#GA
AAA#BCC#DE
EEFF#GG#AB

Why it matters: a song written in E♭ is painful without a barre — capo 1 and play D shapes, or capo 3 and play C shapes.