Music calculators
21 calculators Audio File Size Calculator Calculate audio file size instantly for WAV, AIFF, MP3, AAC, OGG and FLAC. Enter duration, sample rate, bit depth, channels, or lossy bitrate and compare formats side by side.
Open BPM Calculator Find beat duration, bar length, and every note delay time for any BPM and time signature. Includes genre BPM ranges and classical tempo markings.
Open Chord Calculator: Notes, Formula, and Intervals for Any Chord Find the exact notes, interval formula, and semitone structure for any chord in any key. Covers 19 chord types including triads, 7ths, 9ths, sus, and power chords.
Open Chord Finder Find the notes, intervals and formula for any chord. Pick a root and quality - major, minor, 7th, 9th, sus, dim, aug and more. Covers 24 chord types.
Open Chord Inversion Calculator Find the notes of any chord inversion instantly. Supports triads, 7th chords, and 9th chords. Get slash chord notation, figured bass, and stability analysis.
Open Chord Progression Generator Generate diatonic chord progressions for any key and mode. See every chord, its notes, Roman numeral analysis, and classic named progressions instantly.
Open Chord Transposer Transpose any chord or chord sheet to a new key instantly. Choose semitones or target key, pick sharp or flat notation, and get step-by-step explanation.
Open Delay and Reverb Calculator Convert BPM to ms for all note divisions plus dotted and triplet variants. Tempo-synced pre-delay and decay for Hall, Large Room, Small Room, and Tight reverb presets.
Open Fret Calculator Calculate exact fret positions for any scale length using equal temperament. Get nut-to-fret distance and slot spacing for up to 24 frets in mm or inches.
Open Guitar String Tension Calculator Calculate guitar string tension for any gauge, tuning, scale length and string material. Get per-string lbf and Newtons, a balance chart and the full formula.
Open Harmonic Series Calculator Calculate the harmonic series from any note or frequency. Get every partial's Hz, note name, and cents deviation from equal temperament - instantly.
Open Key Signature Calculator Find the sharps or flats in any major or minor key, or identify a key from its accidental count. Shows scale notes, relative key, and circle of fifths position.
Open Music Duration Calculator Calculate song length from BPM, bars, and time signature. Reverse-solve bars from a target duration. Includes genre presets and tempo reference chart.
Open Music Interval Calculator Find the musical interval between any two notes: interval name, semitone count, frequency ratio, cents, and compound vs simple name. Supports 9 octaves.
Open Music Scale Calculator: Notes, Intervals, and Scale Formulas Find every note in any musical scale instantly. Choose root note and scale type to see the note names, semitone pattern, interval names, and numeric formula for 20 scales.
Open Music Transposition Calculator Transpose notes by any interval, shift keys with a full diatonic chord chart, or convert concert pitch to written pitch for Bb, Eb, and F transposing instruments.
Open Note Frequency Calculator Find the frequency, wavelength, period, and MIDI number of any musical note, or reverse-lookup any Hz value to its nearest note. Supports A4 = 432/440/442/444 Hz.
Open Port Length Calculator Calculate the exact port length needed to tune a ported subwoofer enclosure to your target frequency. Supports round and slot ports, metric and imperial units.
Open Semitone Calculator Calculate semitones between two notes or frequencies. Get interval names, frequency ratios, cents, and MIDI numbers. Note-to-note, frequency, and transposition modes.
Open Speaker Box Calculator Calculate sealed or ported speaker box volume, tuning frequency, port length, and the -3 dB cutoff point from your driver's Thiele-Small parameters (Vas, Qts, Fs).
Open Vocal Range Calculator Enter your lowest and highest notes to find your vocal range in octaves and semitones, your classical voice type, and the frequency of each note.
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