Select your lowest and highest notes to calculate semitones, octaves, frequencies, and nearby singing voice range references.
The calculation updates instantly. Use comfortable notes you can repeat without strain.
24 semitones · 2.00 octaves
These matches compare endpoints only. Tessitura, passaggio, timbre, vocal weight, and repertoire still matter.
A vocal range calculator converts two note names into the musical distance between them. Choose the lowest and highest notes you can sing comfortably to see the span in semitones and octaves, plus the approximate frequency of each note.
The calculator also shows nearby broad voice references. It does not listen to your microphone, so use the live vocal range test first if you do not know your notes.
Calculate the inclusive endpoints and the interval between them in semitones and octaves.
Convert each selected note to its equal-tempered frequency using A4 = 440 Hz.
See the selected span plotted across C2 to C7 for quick comparison.
Compare the entered notes with broad classical voice-type ranges while keeping the limitations visible.
Use comfortable, repeatable pitches rather than the widest sounds you can produce once.
Use the online vocal range test, a piano, or a tuner to identify your last controlled low pitch.
Identify your last controlled high pitch using the same register rules and test conditions.
Choose the note names and octaves in the calculator. The result updates immediately in the browser.
Use semitones and octaves for measurement, then compare tessitura and repertoire before drawing conclusions about voice type.
A note-based calculation is useful whenever you already know the endpoints.
Calculate whether a new range changed by a few semitones or a larger fraction of an octave.
Compare your endpoints with the lowest and highest melody notes, then consider transposing the song.
Record a clear note range in a format musicians can understand without replaying a test.
Select a span, then compare it with common Soprano, Mezzo, Alto, Tenor, Baritone, and Bass references.
Choose the tool according to what you already know.
| Vocal range calculator | Live vocal range test | |
|---|---|---|
| Input | Two known note names | Microphone or vocal recording |
| Output | Semitones, octaves, frequencies, and references | Detected notes, live pitch feedback, and references |
| Best for | Calculating and comparing known results | Discovering notes you do not know yet |
| Audio required | No | Yes |
Both tools describe pitch range. Neither replaces an assessment of tessitura, passaggio, technique, or vocal health.
Subtract the MIDI number of the lowest note from the highest note to get the semitone span, then divide by 12 for octaves. This calculator performs those conversions automatically.
One octave contains 12 semitone steps. The two endpoints may be described as 13 named chromatic pitches when both are counted.
A two-octave comfortable range is useful for many singers, but control, tone, tessitura, and musical expression matter more than a single width target.
Open the live vocal range test and sing from a comfortable middle note toward both ends. It will identify the detected note names.
It calculates whichever notes you enter. Decide beforehand whether the range represents modal voice, full singable range, or another consistent register definition.
It can show nearby reference ranges, but it cannot determine voice type from endpoints alone.
The displayed values use twelve-tone equal temperament with A4 set to 440 Hz. Actual singing pitch can vary slightly in performance.
Find BPM from a song, loop, or recording, review confidence, and compare half-time or double-time readings.
Analyze a song, loop, acapella, instrumental, or recording locally, then review confidence and compatible keys.
Detect chord changes, review a synchronized timeline, correct labels, and export a TXT or CSV chord chart.
Select notes or mark a guitar shape, hear the voicing, and compare likely chord names.
Search common major, minor, seventh, and major seventh shapes, hear them, and open detailed references.
Compare chord diagrams by root, quality, and difficulty, then open a detailed reference or print the chart.
Measure beats per minute from your taps with timing consistency feedback.
Use your microphone to tune guitar, bass, ukulele, cavaquinho, violin-family instruments, mandolin, balalaika, banjo, or any chromatic instrument.
Use a live microphone or recording to measure your lowest note, highest note, octave span, and a range-based voice type estimate.
Analyze complete audio files with EBU R128 loudness measurement in your browser.
Check six frequencies in each ear and compare both sides with an instant visual result.
Run a guided high-frequency check or mark your cutoff during a continuous 20 Hz to 20 kHz sweep.
Verify speaker channels and run controlled playback checks directly in your browser.
Verify headphone channels, stereo movement, bass playback, noise, and phase online.
Select an input device, watch the live level, record a short sample, and hear your microphone without uploading audio.
Verify left and right output, stereo, bass, phase, microphone level, recording, and playback in your browser.
