K in Different Fonts

From a palm to kappa

The Phoenician letter kaph meant “palm of the hand”, and its early shape suggested an open hand with fingers. Greek adopted it as kappa (Κ) for the /k/ sound, and the shape was already the angular K we use.

When the alphabet reached Rome through the Etruscans, Latin had three letters for one sound: C, K and Q, each originally used before different vowels. Latin simplified this by using C almost everywhere and Q before u, leaving K for a handful of words such as Kalendae. The letter came back into wide use through Greek loans, Germanic languages and later spelling reforms. Today it’s common in names and branding, partly because it looks sharper than C.

No borrowed forms, one extra twin

K has a native character in every mathematical alphabet. None are borrowed from Letterlike Symbols:

Letterlike Symbols does contain a K, though: the Kelvin sign K (U+212A). It looks exactly like a Latin K in nearly every font. Unicode lists it as canonically equivalent to K, so normalization replaces it with the plain letter, and Unicode recommends using the plain letter for temperatures. A similar case on A’s page is the Angstrom sign Å. These duplicates exist only so older character sets could be converted without loss.

Choosing a K

• Bold gothic 𝕶 / 𝖐: K is one of the more recognisable Fraktur capitals, so it holds up at small sizes better than G or S. Popular for gaming names; see our Free Fire name style page for ideas.
• Bold cursive 𝓚 / 𝓴: a looped capital that reads as a handwritten signature. The lowercase script k has a small loop on the arm, which can look like an h with a bump at tiny sizes.
• Double-struck 𝕂: in maths 𝕂 sometimes stands for “a field, either ℝ or ℂ”, but it’s native, so it matches the rest of the outline alphabet.
• Black squares 🅺 and black bubbles 🅚: unlike 🅰 🅱 🅾 🅿, these don’t have an emoji form, so they stay monochrome. Both are in the bubble text generator.

The handwritten cursive K has a capital that varies widely between school methods and a lowercase with a little loop on the side; the cursive K page shows the strokes.

K at small sizes

K has every small form:

• Small caps ᴋ (U+1D0B), from Phonetic Extensions.
• Superscript ᴷ (U+1D37) and ᵏ (U+1D4F).
• Subscript ₖ (U+2096).

That makes K useful in technical shorthand like units and indexes. In everyday writing, the lowercase k is also the shorthand for thousand (from the Greek kilo), as in “10k followers”, and it keeps that meaning in any style.

Look-alikes and symbols

• К / к is Cyrillic ka (U+041A / U+043A), and Κ is Greek kappa (U+039A). Both are identical to Latin K and are common in spoofing.
• ₭ in the currency style is the Lao kip sign (U+20AD).
• Ҝ (Asian style) is a Cyrillic ka with vertical stroke, used in Azerbaijani.
• ズ (katakana style) is the katakana syllable “zu”.
• Ꮶ (Cherokee style) is the Cherokee syllable “tso”.
• ʞ (upside-down) is the IPA turned k, and ꓘ for the capital comes from the Lisu script.
• ᚴ (runic) is the Younger Futhark rune kaun, which did stand for /k/.

Frequency

K is about 0.8% of letters in English text, rarer than V but more common than J, X, Q and Z. It turns up mostly in a small set of words (know, like, make, look), so in styled sentences it’s less noticeable than in names, where it’s often the first letter.