Reference Chart: Chord Formulas, Symbols & Intervals

    Here's a chart of chord interval formulas, symbols and notes.

    You'll find the formulas, symbols and intervals for major, minor, diminished, augmented, dominant as well as suspended & add chords.

    You can select a different root note from the selector in the bottom left corner and then see the notes and symbols for the chords built on that root note.

    For more resources on chords, check out the Piano Chords tool, the Chords in Keys tool and the chord reference page.

    → You may also like this chart of scale formulas and intervals.

    root note:

    Major Chord Formulas

    Major Chord Formula

    1 3 5

    Intervals

    Root Major 3rd Perfect 5th

    Notes

    C E G

    Symbols

    C Cmaj CM C△

    Major 6th Chord

    1 3 5 6

    Intervals

    Root Major 3rd Perfect 5th Major 6th

    Notes

    Symbols

    Major 7th Chord

    1 3 5 7

    Intervals

    Root Major 3rd Perfect 5th Major 7th

    Notes

    Symbols

    Cmaj7 C△7

    Major 9th Chord

    1 3 5 7 9

    Intervals

    Root Major 3rd Perfect 5th Major 7th Major 9th

    Notes

    Symbols

    Major 13th Chord

    1 3 5 7 9 13

    Intervals

    Root Major 3rd Perfect 5th Major 7th Major 9th Major 13th

    Notes

    Symbols

    * the 11th is usually omitted in a major 13th chord


    Minor Chord Formulas

    Minor Chord Formula

    1 b3 5

    Intervals

    Root Minor 3rd Perfect 5th

    Notes

    Symbols

    Minor 6th Chord Formula

    1 b3 5 6

    Intervals

    Root Minor 3rd Perfect 5th Major 6th

    Notes

    Symbols

    Minor 7th Chord Formula

    1 b3 5 b7

    Intervals

    Root Minor 3rd Perfect 5th Minor 7th

    Notes

    Symbols

    Minor 9th Chord Formula

    1 b3 5 b7 9

    Intervals

    Root Minor 3rd Perfect 5th Minor 7th Major 9th

    Notes

    Symbols

    Minor 11th Chord Formula

    1 b3 5 b7 9 11

    Intervals

    Root Minor 3rd Perfect 5th Minor 7th Major 9th Perfect 11th

    Notes

    Symbols

    Minor 13th Chord Formula

    1 b3 5 b7 9 13

    Intervals

    Root Minor 3rd Perfect 5th Minor 7th Major 9th Major 13th

    Notes

    Symbols

    * the 11th is usually omitted in a minor 13th chord


    Diminished Chord Formulas

    Diminished Chord Formula

    1 b3 b5

    Intervals

    Root Minor 3rd Diminished 5th

    Notes

    Symbols

    Diminished 7th Chord Formula

    1 b3 b5 bb7

    Intervals

    Root Minor 3rd Diminished 5th Diminished 7th

    Notes

    Symbols

    Half-diminished Chord (aka half-diminished 7th)

    1 b3 b5 b7

    Intervals

    Root Minor 3rd Diminished 5th Minor 7th

    Notes

    Symbols


    Augmented Chord Formulas

    Augmented Chord Formula

    1 3 ♯5

    Intervals

    Root Major 3rd Augmented 5th

    Notes

    Symbols

    Augmented 7th Chord Formula

    1 3 ♯5 b7

    Intervals

    Root Major 3rd Augmented 5th Minor 7th

    Notes

    Symbols


    Dominant Chord Formulas

    Dominant 7th Chord Formula

    1 3 5 b7

    Intervals

    Root Major 3rd Perfect 5th Minor 7th

    Notes

    Symbols

    Dominant 9th Chord Formula

    1 3 5 b7 9

    Intervals

    Root Major 3rd Perfect 5th Minor 7th Major 9th

    Notes

    Symbols

    Dominant 11th Chord Formula

    1 5 b7 9 11

    Intervals

    Root Perfect 5th Minor 7th Major 9th Major 11th

    Notes

    Symbols

    * the 3rd is usually omitted in a dominant 11th chord


    Suspended & Add Chord Formulas

    Sus 2 Chord Formula

    1 2 5

    Intervals

    Root Major 2nd Perfect 5th

    Notes

    Symbols

    Sus 4 Chord Formula

    1 4 5

    Intervals

    Root Perfect 4th Perfect 5th

    Notes

    Symbols

    Add 9 Chord Formula

    1 3 5 9

    Intervals

    Root Major 3rd Perfect 5th Major 9th

    Notes

    Symbols

    Circle of fifths with major and minor keys adgcfebDAEBGCF mini circle of fifths