Vocal Range Tester - Measure Your Lowest and Highest Notes by Mic

Use the free tool below: your data never leaves your browser — all work happens on your device, and nothing is uploaded to any server.

What your vocal range is

Your vocal range is the distance between the lowest note you can sing well and the highest note you can sing well. It is measured in semitones, and twelve semitones make one octave. Most untrained singers cover about one and a half octaves. Trained singers often cover two or more. Knowing your range helps you pick songs in keys you can actually sing.

The word well matters. Almost anyone can squeak higher or croak lower than their useful range. Those extreme notes do not count, because you cannot sing them with control, in tune, more than once. This test is about notes you can hold steadily, not noises you can force out.

How this tester works

This is a real tester, not a quiz. It uses your microphone and the Web Audio system in your browser to detect the pitch you are singing, live, using a method called autocorrelation. That method finds the repeating pattern in the sound wave and turns it into a frequency, then into a note name.

Press start, sing your lowest comfortable note steadily, then sing your highest comfortable note steadily, then press stop. The tool tracks the lowest and highest steady notes it hears and reports your range in semitones and octaves, plus a rough voice-type hint.

If no microphone is available, the tool says so plainly, and you can use the manual mode instead. In manual mode you pick your lowest and highest notes yourself. Those results are self-reported, not measured, and the tool labels them that way. A manual result is still useful for choosing songs, but it is not a measurement.

How to get a true result

Warm up first. Sing scales gently for five minutes. A cold voice measures narrower than a warm one, and the low end especially needs warming. Sing in a quiet room, close to the microphone, and hold each note for two or three seconds. Short, wobbly notes do not register as steady, which is deliberate: the tool only counts notes you can hold.

Start in the middle of your voice and work outward. Sing down step by step until the notes lose tone and control, then stop: the last good note is your bottom. Do the same going up. Do not push. Pushing gives a false top note and a sore throat, and neither helps you.

Reading the voice-type hint

The tool compares your range with the usual ranges for soprano, mezzo-soprano, alto, tenor, baritone and bass. These labels are rough hints only. Real voice classification depends on tone colour, where your voice sits most comfortably, and where it changes gear, not just on the lowest and highest notes.

Many singers fall between categories, and that is normal. A baritone with a high extension is still a baritone. A mezzo with low notes is still a mezzo. Use the hint as a starting point for choosing repertoire, not as an identity.

Using your range to pick songs

Find the lowest and highest notes of a song, and compare them with your range. If the song’s notes sit inside your range with room to spare, the key works. If the top note of the song is your absolute top note, the key is risky: you will sing it tired, or on a bad day you will miss it. Move the song down a step or two.

Transposing is not cheating. Professional singers transpose songs to their voices all the time. A song in the right key sounds better than a song in the original key sung badly.

Privacy

Your audio never leaves your device. The microphone signal is analysed live in your browser, and nothing is recorded, uploaded or stored. If your browser blocks the microphone, the manual mode still works, and it says clearly that its results are self-reported.

Vocal Range Tester – Measure Your Lowest and Highest Notes by Mic