Pitch / Free browser tool

Frequency to Note

Find the nearest equal-tempered note and cents offset.

Your result
Nearest note
A4
MIDI note
69
Cents from note
0

How this works

MIDI = 69 + 12 × log2(f/A4)

Use the result carefully

This uses a frequency you provide; it does not listen to or detect pitch from audio.

Calculations run on your device. No audio uploads, account, or email required. Numerical outputs are rounded for display; these tools do not analyze a recording unless explicitly stated.

Report a calculation issue →

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