Frequency to Note Calculator
Convert frequency to a musical note using an adjustable A4 reference and show the tuning offset in cents.
Enter values
Results
About this calculation
MIDI note = 69 + 12 × log₂(frequency ÷ A4). The nearest integer MIDI number identifies the closest equal-tempered note.
How to use this calculator
What to enter
Enter or select the following as requested: Frequency (Hz); A4 reference (Hz). Follow the units, valid ranges, examples, and options displayed beside each field.
What the result means
The audio result calculates or estimates timing, pitch, tempo, frequency, bitrate, or storage from the sound and session settings entered. Check sample rate, bit depth, channel count, codec, tempo, beat unit, and whether latency is measured as a one-way or round-trip value.
When to use it
Use this when planning a recording, editing audio, syncing sound, or estimating media size. Actual results depend on the device, audio interface, codec, buffer settings, and project configuration, so verify critical timing or compatibility in the target setup.