Musical Interval Calculator
Interval Between Two Notes
Find the interval between two notes
Interval from Semitones
Look up an interval name from a number of semitones
Formula
Ascending Semitones = (Note2 - Note1 + 12) mod 12 | Descending = 12 - Ascending | Inversion = 12 - Interval
Frequently Asked Questions
What is a musical interval?
A musical interval is the distance in pitch between two notes, measured in semitones (half steps). Intervals have specific names like Perfect 5th (7 semitones), Major 3rd (4 semitones), etc.
What is an interval inversion?
Inverting an interval means flipping which note is on top. The inversion of a Major 3rd (4 semitones) is a Minor 6th (8 semitones). Inversions always add up to 12 semitones (one octave).
What is consonance vs dissonance?
Consonant intervals sound stable and pleasant together (unison, 3rds, 5ths, 6ths, octaves). Dissonant intervals create tension (2nds, 7ths, tritone). Both are essential in music for creating interest and resolution.
You may also need
~
Chord Calculator
Free chord calculator. Find the notes in any chord. Supports major, minor, 7th, diminished, augmented, suspended, and extended chords.
Everyday~
Key Transpose Calculator
Free key transposition calculator. Transpose any musical key or chord up or down by semitones. Perfect for musicians changing keys.
Everyday~
Frequency to Note Calculator
Free frequency to note converter. Convert any frequency in Hz to its closest musical note, octave, and cents deviation.
Everyday