Scale Degree Calculator
Enter a key and a note to find its scale degree — tonic, supertonic, mediant and the rest — and the chord built on it.
G is the Dominant of C major
Degree 5 — V
Chord built on this degree: G (major) — notes G – B – D
The major scale of C is C – D – E – F – G – A – B. Degrees 1, 4 and 5 are the major chords (I, IV, V); 2, 3 and 6 are minor; 7 is diminished.
How it works: Scale degrees number the notes of a scale from the tonic: 1 is home, 5 is the dominant, 7 is the leading tone that pulls back to 1. Each degree carries its own chord, built by stacking thirds from that note.
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