π€ Vocal Range Finder
Sing into your mic to map your lowest and highest notes and find your voice type.
- Press Start Listening and allow microphone access when asked.
- Sing your lowest comfortable note on an "ah" vowel, holding it steady for 2 seconds.
- Glide or step upward and sing your highest comfortable note, holding it 2 seconds.
- Press Stop and Classify. Do not strain: comfortable notes only.
Your voice type
No microphone? Enter your range manually
Find your lowest and highest comfortable notes on any piano or piano app, then type them as note names (for example, C3 and G4).
Privacy: all pitch detection runs in your browser. Nothing is recorded, uploaded, or stored.
How to Use This Tool
This finder maps your vocal range with your device microphone and matches it to the closest standard voice type. Warm up with a few gentle slides first, then start listening, sing your lowest comfortable note and hold it, sing your highest comfortable note and hold it, and stop to see your classification. If you have no microphone, the manual entry boxes give you the same result from note names.
Find a quiet room and sit or stand up straight with the microphone a comfortable distance away. Press Start Listening and allow microphone access when your browser asks.
Sing your lowest comfortable note on an open "ah" vowel and hold it steady for about two seconds. Watch the live note display confirm what the tool hears.
Move upward through your range and sing your highest comfortable note, again holding it for two seconds. Never strain, push, or flip into an uncontrolled squeak.
Press Stop and Classify. The tool shows your lowest note, highest note, total range in semitones, and your closest voice type with its typical range for comparison.
The Six Standard Voice Types
Voice types exist so choirs, operas, and musicals can cast singers into parts that sit comfortably in their voices. The ranges above are the standard comfortable singing ranges, not the absolute extremes anyone can squeak out. Within each type there are subdivisions, lyric versus dramatic and so on, that describe tone color and weight rather than range, but the six main labels cover the classification most singers need.
Your voice type is determined mainly by where your voice sits most comfortably, called the tessitura, and where your register breaks fall, not just by your highest and lowest notes. Two singers can share the same outer range while one is clearly a mezzo and the other a soprano, because one sounds at home high and the other sounds at home in the middle. Treat this tool's label as a strong starting indication, and confirm it with a teacher if you plan to sing seriously.
How the Pitch Detection Works
The tool captures audio from your microphone and analyzes it with the Web Audio API's AnalyserNode, which delivers the raw waveform many times per second. A pitch detection algorithm called autocorrelation then compares the waveform against delayed copies of itself to find the delay where the signal lines up best. That delay is the period of one vibration cycle, and its inverse is your pitch in Hertz, which converts directly to a note name: frequency 440 Hz is A4, and each semitone multiplies the frequency by the twelfth root of two.
To keep the reading honest, the tool ignores silence and weak signals below a volume threshold, ignores pitches outside the human singing range, and only records a new extreme when you hold a steady pitch for several consecutive analysis frames. That is why the instructions ask you to hold each note for two seconds: a quick swoop past a note should not count as part of your usable range.
Practical Tips
Test your range when your voice is warmed up but not tired, ideally mid-morning or after a gentle warm-up routine. Voices are typically a little lower and less flexible first thing in the morning and after heavy use. Measure twice on different days and keep the more conservative result, since an off day's strained high note is not a note you can rely on in performance.
Use your result to choose repertoire wisely: pick songs whose melodies sit mostly inside your comfortable range rather than songs that merely touch your extremes once. If you are between two voice types, sing in both for a few weeks and notice which feels like home. And remember that range expands with training; most beginners gain several semitones on each end within a year of consistent, healthy practice.
Frequently Asked Questions
How does the vocal range finder detect my notes?
It listens through your microphone and runs a pitch detection algorithm called autocorrelation on the audio, many times per second. Autocorrelation finds the repeating cycle in your voice's waveform and converts it to a musical note name and frequency. Your lowest and highest detected notes define your range, and the tool matches that range to the closest standard voice type.
What are the six main voice types?
From highest to lowest: soprano (about C4 to A5), mezzo-soprano (A3 to A5), alto or contralto (F3 to F5), tenor (C3 to A4), baritone (G2 to G4), and bass (E2 to E4). Women typically fall in the top three and men in the bottom three, but there is plenty of overlap, and your comfortable range matters more than the label.
Should I sing my absolute highest and lowest notes?
No. Sing the highest and lowest notes you can produce comfortably and in good tone, holding each for about two seconds. Straining for an extra screech or growl gives you a range you cannot actually use in songs. Choir directors and teachers classify voices by the comfortable, usable range, not the extreme edges.
Is my audio recorded or uploaded anywhere?
No. All pitch detection runs locally in your browser using the Web Audio API. Nothing is recorded, nothing is uploaded, and nothing is stored. The moment you press Stop or close the page, the microphone turns off and the audio data is gone.
The tool is not detecting my voice. What should I check?
First, allow microphone access when your browser asks. Then sing louder and closer to the microphone, in a quiet room, holding each note steady for two seconds. The detector needs a clear, sustained tone; humming or singing "ah" works better than breathy or whispered singing. If your browser blocks the microphone, use the manual note entry boxes instead.
What if I do not have a microphone?
Use the manual fallback below the tool: play the lowest and highest notes you can sing comfortably on any piano or free piano app, then type those note names (for example C3 and G4) into the boxes and press Classify My Range. You get the same voice type result without any microphone.