How many octaves can you sing? This free octave range test listens to your lowest and highest steady notes and counts your octaves and semitones, names the interval between them, and shows how much of each keyboard octave your voice covers. Use the microphone or pick notes you already know; nothing is recorded or uploaded.
Octave Range Test
Find out how many octaves your voice covers. Sing your lowest and highest notes into the microphone, or choose them, to get your range in octaves and semitones with an octave-by-octave breakdown.
octaves
Example: a range of C3–C5 is exactly 2 octaves (24 semitones). Your result will appear here.
- Lowest note
- –
- Highest note
- –
- Semitones
- –
- Interval
- –
Octave by octave
- Octave 1 C1–B1 –
- Octave 2 C2–B2 –
- Octave 3 C3–B3 –
- Octave 4 C4–B4 –
- Octave 5 C5–B5 –
- Octave 6 C6–B6 –
- Octave 7 C7–B7 –
Middle C is C4. Count notes you can sing clearly; sing gently and stop if anything strains.
How to Take the Octave Test
- Warm up for a few minutes with easy humming, lip trills and gentle sirens.
- Press Start, allow the microphone, and sing “ah” sliding slowly down to your lowest steady note. Hold it for about a second and save it.
- Slide up the same way to your highest steady note and save it. Stop before anything strains.
- Read your result: octaves, semitones, the interval name and your octave-by-octave coverage.
- Test again on another day and keep the result you can repeat.
No microphone? Select Choose notes and pick the lowest and highest notes you found on a piano or keyboard app. Warm-up ideas are in vocal warm-up exercises.
How the Test Detects Your Notes
The test only accepts a note once your voice has stayed within about one semitone of it for roughly a second. Quick slides, cracks, breaths and background noise are ignored, so a single squeak can’t inflate your range. The live display shows the note you are singing, its frequency in hertz and the lowest or highest steady note found so far.
How Your Octave Range Is Calculated
Every note has several semitones above a fixed starting point. The test subtracts your lowest note from your highest and divides by 12. For example, A2 to E5 is 31 semitones: 31 ÷ 12 = 2.58 octaves, which the result shows as “2 octaves + perfect 5th” (two octaves and a perfect fifth). Frequencies use standard tuning, with A4 at 440 Hz.
What Your Octave Result Shows
- Octaves: your span as a decimal, for example, 2.42 octaves.
- Lowest and highest note: in scientific pitch notation, such as E2 and G4.
- Semitones: the exact distance, for example 29.
- Interval name: the musical name of your span, such as “2 octaves + perfect 4th”.
- Octave by octave: how much of each keyboard octave (C2–B2, C3–B3 and so on) you can sing.
- What it means: how your span compares with typical singers.
Reading the Octave-by-Octave Chart
The chart splits the keyboard into octaves that start on C, the same way notes are numbered: C2–B2, C3–B3, C4–B4 and so on. Each bar shows how many of that octave’s 12 notes you can sing. A range of A2–E5, for example, covers the top 3 notes of octave 2 (A2, A♯2, B2), all of octaves 3 and 4, and the first 5 notes of octave 5 (C5 to E5). Full bars in the middle and partial bars at the edges are normal. The chart makes it easy to see where your voice lives: a low voice fills octaves 2 and 3, a high voice fills octaves 4 and 5.
Interval Names Explained
After the whole octaves, the leftover semitones get a standard musical name:
| Leftover semitones | Interval | Leftover semitones | Interval |
|---|---|---|---|
| 0 | Exact octaves | 6 | Tritone |
| 1 | Minor second | 7 | Perfect fifth |
| 2 | Major second | 8 | Minor sixth |
| 3 | Minor third | 9 | Major sixth |
| 4 | Major third | 10 | Minor seventh |
| 5 | Perfect fourth | 11 | Major seventh |
The result uses the short form, such as “minor 3rd” or “perfect 5th”. So 29 semitones is two octaves (24) plus 5, shown as “2 octaves + perfect 4th”.
Why Low Notes Are Harder to Detect
Your lowest notes are the hardest part of any octave test. Low sung notes have a weak fundamental frequency and strong overtones, and small phone and laptop microphones pick up very little below about 100 Hz. Pitch software can then lock onto an overtone and report a note an octave too high, or miss the note completely. To help the test, sing low notes on “ah” or “oh” at a medium volume rather than a whisper, move a little closer to the microphone, and hold each note steadily. If a result still looks wrong, check the note on a piano app and enter it manually.
How Many Octaves Is Normal?
| Your result | What it means |
|---|---|
| Under 1.5 octaves | Narrow; warm up and test again. Most adults reach at least one and a half. |
| 1.5–2 octaves | Average for untrained singers. |
| 2–2.5 octaves | Good; see is a 2 octave range good? |
| 3 octaves | Very good; see is a 3 octave range good? |
| 4 octaves or more | Rare; see 4 octave vocal range |
How octaves are counted, and how many a piano or the human ear covers, is explained in octave ranges.
Tips for an Accurate Octave Test
- Use a quiet room and keep the device about 30–50 cm from your mouth.
- Sing a clear vowel; humming works for low notes, but “ah” is more reliable.
- Test your comfortable range and your falsetto or whistle notes separately; the whistle register guide explains the highest notes.
- Don’t count a note you can only squeeze out once: your real range is the one you can repeat.
- Test at the same time of day each time; voices are often lower in the morning.
What This Result Doesn’t Tell You
The octave count is the size of your range, not where it sits or how it sounds. Two singers can both have two octaves and be a bass and a soprano. It also doesn’t judge tone or pitch accuracy. To see your notes on a keyboard, your closest voice type and the famous singers with the closest range, use the vocal range calculator. To score range, pitch accuracy and steadiness together, try the vocal tier test. To work out the octaves between two frequencies rather than your voice, use the octave calculator.
Frequently Asked Questions
How do I know how many octaves I have?
Find your lowest and highest steady notes, count the semitones between them and divide by 12. The test above does this for you.
How many octaves does the average person have?
About one and a half to two octaves without training.
Can I test my octave range without a microphone?
Yes. Find your notes with a piano or keyboard app and enter them in the test.
Why is my octave result different each time?
Your voice changes with warm-up, time of day and tiredness. Test two or three times and use your most consistent result.
Is the octave test accurate?
The note detection is accurate to a fraction of a semitone for a clear, steady voice. The main sources of error are background noise, very quiet low notes and headsets that filter the sound, so a quiet room and the device’s built-in microphone give the best result.
Which browsers does it work in?
Currently, Chrome, Edge, Firefox and Safari on computers and phones. Allow microphone access when the browser asks; if you blocked it earlier, re-enable it in the site settings next to the address bar.
Is my voice recorded?
No. The sound is analysed in your browser while you sing and is never stored or uploaded.