Melody & Ear
Interval Calculator
Select two notes to instantly see the interval name, semitone count, and consonance level.
Melody & Ear
Interval Calculator
Melody & Ear
Interval Calculator
Select two notes to instantly see the interval name, semitone count, and consonance level.
P5
Perfect Fifth
7 semitones
All intervals
| Symbol | Name | Semitones | Consonance |
|---|---|---|---|
| P1 | Perfect Unison | 0 | Perfect consonance |
| m2 | Minor Second | 1 | Dissonant |
| M2 | Major Second | 2 | Dissonant |
| m3 | Minor Third | 3 | Imperfect consonance |
| M3 | Major Third | 4 | Imperfect consonance |
| P4 | Perfect Fourth | 5 | Imperfect consonance |
| A4d5 | Augmented Fourth (Tritone) | 6 | Dissonant |
| P5 | Perfect Fifth | 7 | Perfect consonance |
| m6 | Minor Sixth | 8 | Imperfect consonance |
| M6 | Major Sixth | 9 | Imperfect consonance |
| m7 | Minor Seventh | 10 | Dissonant |
| M7 | Major Seventh | 11 | Dissonant |
| P8 | Perfect Octave | 12 | Perfect consonance |
P5
Perfect Fifth
7 semitones
All intervals
| Symbol | Name | Semitones | Consonance |
|---|---|---|---|
| P1 | Perfect Unison | 0 | Perfect consonance |
| m2 | Minor Second | 1 | Dissonant |
| M2 | Major Second | 2 | Dissonant |
| m3 | Minor Third | 3 | Imperfect consonance |
| M3 | Major Third | 4 | Imperfect consonance |
| P4 | Perfect Fourth | 5 | Imperfect consonance |
| A4d5 | Augmented Fourth (Tritone) | 6 | Dissonant |
| P5 | Perfect Fifth | 7 | Perfect consonance |
| m6 | Minor Sixth | 8 | Imperfect consonance |
| M6 | Major Sixth | 9 | Imperfect consonance |
| m7 | Minor Seventh | 10 | Dissonant |
| M7 | Major Seventh | 11 | Dissonant |
| P8 | Perfect Octave | 12 | Perfect consonance |
What is this tool?
An interval calculator that shows the name, semitone distance, and consonance of any two notes you pick — plus a piano view and the option to hear them played one after the other or together.
When it helps
-
Learn interval names by ear
Pair labels like 'minor third' or 'perfect fifth' with their actual sound and distance in semitones.
-
Understand how chords are built
Chords are stacks of intervals. See what intervals turn a root into a major triad, minor triad, or seventh chord.
-
Support ear training and transcription
Play intervals melodically and harmonically so you get comfortable recognizing both kinds of contexts.
How to use
- 1 In the top bar, pick Note 1 (the reference) and Note 2, plus an octave and direction (↑ / ↓).
- 2 The result card shows the interval abbreviation (e.g. P5), its name, semitone count, and consonance.
- 3 Use 'Seq' in the bottom dock to play the two notes in order, or 'Sim' to hear them together.
- 4 The piano highlights the reference note in purple and the comparison note in amber.
- 5 Tap any row in the table to snap Note 2 to that interval instantly.
Related Tools
Lessons that use this tool
The sections of the systematic curriculum where this actually comes up.
Learning courses that include this topic
Following the course in order gives you a structured foundation.