Sia
Mezzo-soprano · Pop · Electronic · Australia · prominent since 2011
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. That cited span is wider than 65% of the 357 voices in this library.
- 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).
- 1 other voice here carries 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.
- One of only 11 Electronic voices in this library.
Commonly cited figures, not lab measurements — extreme notes are one-off recorded moments, not the singer’s everyday range.
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
13 other voices here are cited to the same floor.
Also topping out on C6
55 other voices here reach the same ceiling.