🎵 Chord Calculator
Find guitar and piano chord fingerings
C
CEG
Step-by-step chord construction
- 1.Root note: C (index 0 in chromatic scale)
- 2.Chord type: Major (1 - 3 - 5)
- 3.Character: Happy, bright, stable
- 4.Note 1: C + 0 semitones = C
- 5.Note 2: C + 4 semitones = E
- 6.Note 3: C + 7 semitones = G
- 7.C = C - E - G
Piano Keys
C
C#
D
D#
E
F
F#
G
G#
A
A#
B
Music Theory Quick Reference
- • Semitone: smallest interval, one piano key apart
- • Major third: 4 semitones (bright, happy)
- • Minor third: 3 semitones (dark, sad)
- • Perfect fifth: 7 semitones (stable, strong)
- • A chord is built by stacking intervals from the root note
Select a root note and chord type to see the notes. Intervals are measured in semitones from the root.
How to Use Chord Calculator
- 1Select a root note (C, D, E, etc.).
- 2Choose the chord quality (major, minor, 7th, etc.).
- 3View the chord diagram, note names, and listen to the chord.
About Chord Calculator
Look up any guitar or piano chord instantly. This chord calculator shows fingerings, note names, intervals, and audio playback for major, minor, seventh, diminished, augmented, and extended chords.
Frequently Asked Questions
Does it show multiple voicings?
Yes. For guitar, multiple fretboard positions are displayed. For piano, common voicings and inversions are shown.
What chord types are supported?
Major, minor, diminished, augmented, dominant 7th, major 7th, minor 7th, sus2, sus4, add9, and many extended chords.