IU
Soprano · K-Pop · Pop · Singer-Songwriter · South Korea · prominent since 2008
What is IU’s vocal range?
IU's vocal range is commonly cited as D3 to C6 — about 2.8 octaves, or 34 semitones, and is usually classified as soprano. Full voice is cited up to around E5; everything above that comes from head voice.
Small bell-clear soprano tone, exact pitch placement, and a light mix she keeps deliberately unforced. That cited span is wider than 58% of the 357 voices in this library.
- Signature song
- Good Day
Reading the numbers
- D3 is a deep floor for a soprano — lower than all but 5 of the 52 sopranos here.
- That floor is a full 10 semitones beneath where a soprano's range conventionally starts (C4).
- 1 other voice here carries the identical cited range — at the resolution these figures are quoted in, those voices are indistinguishable on the chart.
- Roughly 24% of the span sits above the cited full-voice ceiling of E5.
- The weight of the range is above middle C: 24 semitones up there against 10 below.
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 IU’s.
Also bottoming out on D3
12 other voices here are cited to the same floor.
Also topping out on C6
55 other voices here reach the same ceiling.