Semitone Frequency Calculator
Calculate the exact frequency produced by raising or lowering a pitch by semitones.
Enter values
Results
About this calculation
Equal temperament uses a frequency ratio of 2^(semitones ÷ 12). A positive shift raises pitch; a negative shift lowers it.
How to use this calculator
What to enter
Enter or select the following as requested: Starting frequency (Hz); Semitone change. Follow the units, valid ranges, examples, and options displayed beside each field.
What the result means
The output gives the imaging, print, video, or audio value implied by the settings entered. Confirm whether the tool uses pixels, physical dimensions, frames per second, samples, bits, or another unit, and check the intended output medium.
When to use it
Use this to plan capture, editing, playback, or print settings. Preview the result on the target device or medium because display, compression, and hardware behavior can affect the final outcome.