Music Interval Calculator

Identify the musical interval between two notes by name (quality and number) or in semitones, with both ascending and descending direction support.

Frequently Asked Questions

What is a perfect interval?

Unisons, fourths, fifths, and octaves are called perfect because they sound stable and tune to simple ratios (1:1, 4:3, 3:2, 2:1).

What is the difference between augmented and diminished?

An augmented interval is one semitone larger than perfect or major; a diminished interval is one semitone smaller than perfect or minor.

What is a tritone?

The interval of six semitones. Spelled as an augmented fourth (C to F#) or a diminished fifth (C to Gb) depending on context.

Important Disclaimer: Estimates for informational purposes only.

This calculator provides estimates for informational purposes only. Results are based on assumptions and may not reflect actual outcomes. Consult qualified professionals in relevant fields before making important decisions based on these results.