Sia Vocal Range and Voice Type
Sia's cited vocal range is C3 to C6 (3.0 octaves). Sia is commonly classified as a mezzo-soprano. See the notes and compare your range free.
Evidence and review
Individual evidence review is pending. The displayed range is a reported reference span, not an independently verified physiological limit.
These are the approximate figures fans and music journalists commonly cite — the widest notes a singer has recorded, not the comfortable range they sing in every night, and not lab measurements. Treat them as a fun reference, not a target.
How Sia uses that range
Rasp is the signature and it is loudest at the top, where notes around Ab5 are held in a wide, open vowel until the tone frays. Onsets often scoop up from below, and the vibrato is broad and late, sometimes replaced by a deliberate crack. Chandelier shows that held, splintering belt clearly. Producing the grit with throat friction wears a voice out inside one chorus; it has to ride on strong, steady airflow.
What is Sia’s vocal range?
Sia's vocal range is commonly cited as C3 to C6 — about 3.0 octaves, or 36 semitones, and is usually classified as mezzo-soprano. Full voice is cited up to around G#5 (Ab5); everything above that comes from head voice.
Rasp-heavy belt that frays by design; wide vowels and long notes held high in full voice.
- Signature song
- Chandelier
Reading the numbers
- Full voice is cited to within 4 semitones of the top note, so this reads as a chest-dominant voice rather than one that flips into a lighter register.
- That floor is a full 9 semitones beneath where a mezzo-soprano's range conventionally starts (A3).
- 3 other voices here carry the identical cited range — at the resolution these figures are quoted in, those voices are indistinguishable on the chart.
- The weight of the range is above middle C: 24 semitones up there against 12 below.
- Ranked by bottom note, it is the 391st lowest voice in this library; by top note, the 113th highest.
Commonly cited figures, not lab measurements — extreme notes are one-off recorded moments, not the singer’s everyday range.
More about Sia’s voice
How high can Sia sing?
Sia is commonly cited singing up to around G#5 (Ab5) in full voice, and as high as C6 overall — the stretch above G#5 comes from head voice.
What is Sia’s highest note?
Sia’s highest note is commonly cited as C6. Full voice is cited up to around G#5; the very top comes from head voice.
What is Sia’s lowest note?
Sia’s lowest note is commonly cited as C3.
How many octaves can Sia sing?
Sia’s commonly cited range spans about 3.0 octaves (36 semitones), from C3 up to C6. That span is wider than 60% of the 636 voices in this library.
Take the free 2-minute range test — your mic finds your lowest and highest notes, then this page shows exactly how your voice lines up with Sia’s.
Also bottoming out on C3
42 other voices here are cited to the same floor.
Also topping out on C6
69 other voices here reach the same ceiling.