Music Production Calculators & Tools
Free, practical tools for producers and DJs — calculate tempo and delay times, convert MIDI notes to frequencies, budget sample-rate and file sizes, and mix in key with the Camelot wheel.
BPM Tempo Calculator
Convert a tempo in BPM into the millisecond length of a beat, a bar, and every note value so you can sync delays, LFOs, and automation to the grid
Delay Time Calculator
Turn your tempo into tempo-synced delay times in milliseconds and Hz for straight, dotted, and triplet notes — perfect rhythmic echoes every time
MIDI Note Frequency Converter
Convert between MIDI note numbers, note names, and frequencies in Hz with an adjustable A4 reference for sound design and tuning
Sample Rate & Bit Depth Calculator
See the uncompressed PCM data rate and file size for any sample rate, bit depth, channel count, and duration to budget storage and bandwidth
Audio File Size Calculator
Estimate an audio file's size from uncompressed PCM settings or a compressed bitrate and duration to plan exports and uploads
DJ Mix Harmonic Key Calculator
Enter a track's Camelot code to find every harmonically compatible key for smooth, in-key DJ transitions and mashups