COMMON INTERVALS
(0 half steps)
(1 half step)
(2 half steps (aka 1 whole step))
(3 half steps)
(4 half steps)
(5 half steps)
Augmented 4th / Diminished 5th
(6 half steps)
(7 half steps)
Augmented 5th / Minor 6th
(8 half steps)
(9 half steps)
(10 half steps)
(11 half steps)
(12 half steps)
INTERVALS BEYOND ONE OCTAVE
Minor 9th = 13 half steps
Major 9th = 14 half steps
Minor 10th = 15 half steps
Major 10th = 16 half steps
Perfect 11th = 17 half steps
Augmented 11th / Diminished 12th = 18 half steps
Perfect 12th = 19 half steps
Augmented 12th / Minor 13th = 20 half steps
Major 13th* = 21 half steps
*The major 13th is generally the largest interval used to describe the distance between two notes and anything past this interval is described using modifications of other intervals. Ex. An octave + a major 7th OR a major 7th an octave higher, etc.