• 🎵 Frequency to Pitch Calculator

    Enter a frequency in Hertz (Hz) and find the closest musical note, octave, MIDI note number, exact note frequency, and cents difference.

    Try a frequency
    Nearest Musical Note
    A4
    Exact note frequency: 440.00 Hz
    Perfectly in tune
    MIDI Note
    69
    Scientific Pitch
    A4
    Frequency Entered
    440 Hz
    Pitch in MIDI Decimals
    69.00
    MIDI Pitch = 69 + 12 × log₂(Frequency ÷ 440)
    🎧 What does the frequency tell you?

    Frequency describes how many times a sound wave vibrates per second. It is measured in Hertz (Hz).

    Musical pitch is related to frequency, with higher frequencies producing higher pitches. In the standard equal-tempered tuning system, A4 is normally tuned to 440 Hz.

    The calculator uses A4 = 440 Hz and 12-tone equal temperament to determine the nearest musical note.
    🎚️ What are cents?

    A semitone contains 100 cents. The cents measurement tells you how far the frequency is above or below the nearest equal-tempered note.

    For example, +25 cents means the frequency is one quarter of a semitone above the nearest note, while -25 cents means it is one quarter of a semitone below it.
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