GlyphIndexExample notation
θ = 90°
The letter is defined as the measure of a right angle in this note.
Greek theta
Theta has uppercase Θ and lowercase θ forms. The related theta symbol ϑ has its own code point.
GREEK CAPITAL LETTER THETA
Appearance can vary by font.
Character details
♡→✦
3 code pointsMeaning and context
Theta has uppercase Θ and lowercase θ forms. The related theta symbol ϑ has its own code point.
How to use it
In the example, θ labels a right angle of 90°. Preserve the theta form used by the source when copying technical notation.
Examples
Uppercase and lowercase
Θ U+0398 / θ U+03B8
Uppercase and lowercase use different code points. Copy the case you need.
Similar shapes, different characters
Compare the lookalike
U+03D1U+03D1 is a separate Greek theta symbol; it is not this ordinary small letter.
Greek small theta
U+03B8Copy the lowercase letter when that is the case used in the source material.
Sources and method
- Unicode 18.0.0 character database — Pinned standard character identities and properties; the application computes UTF encodings from the original text.
- Unicode normalization forms (Unicode 18.0.0)