Unlock the secrets of musical harmony with our free Music Interval Calculator. Easily determine the precise distance in semitones between any two notes and instantly identify the interval name and quality. Perfect for learning music theory, composing, or analyzing melodies and chords. Understand pitch relationships effortlessly.
Formula:
The musical interval between two notes is fundamentally the number of semitones separating them. Our calculator assigns a numerical value to each note (e.g., C=0, C#=1, D=2, ..., B=11) within its respective octave. The total semitone value for a note is calculated as:
Total Semitones = Note Value + (Octave * 12)
The calculation for the interval's semitone difference is then:
Interval Semitones = |(Total Semitones of Second Note) - (Total Semitones of First Note)|
Where:
- Note Value: The semitone count for the note name within an octave (C=0, C#=1, D=2, D#=3, E=4, F=5, F#=6, G=7, G#=8, A=9, A#=10, B=11).
- Octave: The standard octave number (e.g., 4 for C4).
- The absolute difference yields the number of semitones, which then maps to a specific interval name and quality (e.g., 3 semitones = Minor Third, 7 semitones = Perfect Fifth).