Compare two musical pitches

Intervals use 12-tone equal temperament for pitch/frequency context. Enharmonic spellings such as C♯ and D♭ share a pitch class here; notation-specific interval spelling can differ.

First note

Octave

Second note

Octave

—Interval

—Semitones

—Direction

—Frequency ratio

ReadyChoose two notes to compare their pitch distance.

Browser-local music practice workflow

v10.79 connects timing, tuning, pitch reference, virtual instruments and music-theory tools without requiring an account. Existing interactive engines remain intact while the new workflow makes it easier to move from a practical task—keep time, tune, play, identify, transpose—to the next relevant tool.

Audio and theory boundaries

Microphone pitch detection depends on the device, room and signal quality. Equal-tempered frequency math does not measure a real instrument, and chord/scale naming can have multiple enharmonic or theoretical interpretations. Reference tones and noise should be used at comfortable playback levels; browser controls do not measure sound-pressure exposure.

How to use this Music Interval Finder

Find the musical interval between two notes, including semitone distance, direction, frequency ratio, and browser playback.

Enter, paste, upload, or choose the inputs shown in the tool above.
Adjust the available options for the result you need.
Review the output before copying, downloading, or using it elsewhere.

What this tool does

Choose two notes and octaves to identify their interval, compare pitch distance, and hear both notes locally.

Practical tips and limits

Review the inputs and result before using the output elsewhere. Keep the original data when the operation changes or replaces content.