Character
Κ
Unicode
U+039AHTML named
ΚHTML decimal
ΚLaTeX
KKappa Symbol (κ) — Copy & Paste
Grab the kappa greek symbol in one click. Pronunciation: KAP-uh.
ΚUpper
κLower
Technical reference
Unicode, HTML entities, and LaTeX — tap the icon beside any value.
Character
κ
Unicode
U+03BAHTML named
κHTML decimal
κLaTeX
\kappaCommon uses in science & math
Curvature & permittivity
Differential geometry uses κ for curvature; dielectric constant is often written κ or εᵣ.
Spring constant & Cohen’s kappa
Physics may use κ for a spring/thermal coefficient; statistics uses Cohen’s κ for inter-rater agreement.
How to type Kappa
Windows
Grab κ here rather than substituting Latin k.
macOS
Character Viewer → “kappa”, or use this page.
Word & Google Docs
Paste κ into spreadsheets and Markdown freely.
Prefer a full walkthrough? Read how to type Greek letters.
Related Greek letters
Kappa FAQ
Is κ different from Latin k?
Yes—κ is Greek kappa (U+03BA). Use κ when a paper’s notation specifies Greek.