Circle of Fifths

A visual map of every key signature and how they relate. Click a key on the wheel to explore its signature, relative minor, and diatonic chords.

CAmGEmDBmAF#mEC#mBG#mF#/GbD#m/EbmDbBbmAbFmEbCmBbGmFDm
CMajor

C Major

Relative minor: Am

Key Signature — No sharps or flats

All natural notes — the same key signature as C Major.

Diatonic Chords
I
C
ii
Dm
iii
Em
IV
F
V
G
vi
Am
vii°
B°

Want the full theory?

Read the complete guide to key signatures, transposition, and chord progressions.

Reading the Wheel

  • •Clockwise: each step adds one sharp (#).
  • •Counter-clockwise: each step adds one flat (b).
  • •Outer ring: major keys. Inner ring: their relative minors, sharing the same signature.
  • •Neighbors: adjacent keys on the wheel differ by a single note — handy for smooth key changes.