Free music calculators
Quick math for players and home studios. Each tool runs in your browser and shows the formula it uses, so you can check the numbers yourself.
Delay Time CalculatorTurn a song's BPM into delay and reverb pre-delay times in milliseconds and Hz for whole, half, quarter, eighth and sixteenth notes, plus dotted and triplet values.
Note Frequency CalculatorFind the frequency in Hz of any note from C0 to B8 at A4 = 440 Hz or a custom reference, and see the open-string notes for guitar, bass, ukulele, violin, cello and more.
Audio Latency and File Size CalculatorSee how much delay a buffer size adds at each sample rate, and how much disk space a recording takes at a given sample rate, bit depth and track count.