Complete Circle of Fifths

Interactive circle of fifths showing all 12 major and minor keys with their diatonic triads. Click on any key in the circle to jump to its triads.

Circle of Fifths

Click on any key (major or minor) to view its triads below

Diatonic Triads for Each Key

All Keys
Major Keys Only
Minor Keys Only
Major Keys
Minor Keys
Major Triad
Minor Triad
Diminished Triad

Understanding the Circle of Fifths

12 Keys in the Circle

The circle of fifths contains 12 positions representing all major keys:

  • C → G → D → A → E → B
  • F♯/G♭ → D♭ → A♭ → E♭ → B♭ → F

F connects back to C, completing the circle.

Triad Composition

Each triad is built from three notes:

  • Major: Root + Major 3rd + Perfect 5th
  • Minor: Root + Minor 3rd + Perfect 5th
  • Diminished: Root + Minor 3rd + Diminished 5th

Relative Minor Keys

Each major key has a relative minor that shares the same key signature. The relative minor is the 6th scale degree of the major scale.

Example: C Major ↔ A Minor (no sharps/flats)