IU Vocal Range: Reported D3–C6
IU’s reported vocal range is D3 to C6, about 2.8 octaves (34 semitones). That is a reported reference span, not an independently verified physiological limit. The catalog lists IU as a soprano; this is a reported reference classification.
Review confirmed · Read sources and limitations
Can you sing it?
Take the free 2-minute range test. Your mic finds your lowest and highest notes; then compare them with IU’s reported reference span. Matching endpoints does not establish the same voice type or technique.
Where IU’s reported span sits in the catalog
- Span, whole catalog
- 34 semitones wide: number 277 of 636 by reported span. The catalog median is 32.5 semitones.
- Span, soprano group
- Number 40 of 97 catalog sopranos; that group's median span is 33 semitones, and this span is 1 semitone wider than that median.
- Span, K-Pop
- Number 10 of 17 catalog singers tagged K-Pop (median 35 semitones).
- Against the textbook band
- The conventional soprano band runs C4 to C6. The reported floor sits 10 semitones below the band's bottom note, and the reported ceiling matches the band's top note.
- Full-voice ceiling
- The catalog lists a highest full or belted note of E5, 8 semitones below the reported ceiling.
- Catalog entry
- Filed under South Korea, prominent from 2008, signature song listed as Good Day.
Counted from the catalog’s reported figures, which are not verified measurements.
Evidence and review
Catalog review confirmed 2026-10-24 · Dataset editor: Jason Colapietro
Reported reference span: the displayed catalog range is not an independently verified physiological limit. The catalog lists IU as a soprano; this is a reported reference classification.
The catalog has not verified recordings or scores for both endpoints. These figures cannot establish a repeatable singing range or an absolute highest or lowest note.
These are approximate catalog reference spans. Most profiles have not had both endpoints individually verified against named recordings or scores. They are not lab measurements or comfortable everyday ranges; use them for comparison, not as training targets.
What is IU’s vocal range?
IU’s reported vocal range is D3 to C6, about 2.8 octaves (34 semitones). That is a reported reference span, not an independently verified physiological limit. The catalog lists IU as a soprano; this is a reported reference classification.
- Signature song
- Good Day
Reported catalog figures, not lab measurements. An endpoint may be an isolated performance and does not describe an everyday singing range.
More about IU’s voice
How high can IU sing?
The catalog lists D3 to C6 as a reported reference span, not an independently verified physiological limit. Its upper endpoint should not be read as a verified individual maximum.
What is IU’s highest note?
The catalog lists D3 to C6 as a reported reference span, not an independently verified physiological limit. The catalog record does not independently establish the upper endpoint as an individual highest note.
What is IU’s lowest note?
The catalog lists D3 to C6 as a reported reference span, not an independently verified physiological limit. The catalog record does not independently establish the lower endpoint as an individual physiological limit.
How many octaves can IU sing?
The catalog lists D3 to C6 as a reported reference span, not an independently verified physiological limit. It covers about 2.8 octaves (34 semitones) in the catalog, not a reviewed measurement of the singer's full working range.
What voice type is IU?
The catalog lists IU as a soprano; this is a reported reference classification.
IU’s full entry (range, tone and technique) is in The Voice Atlas, chapter 24: K-pop, J-pop and global pop, included with Pro.
Also listed from D3
35 other voices here have the same reported floor in this catalog.
Also listed up to C6
69 other voices here have the same reported ceiling in this catalog.