Kerning

In typography, kerning is the adjustment of the space between specific, individual pairs of letters so that text looks evenly spaced and reads comfortably. Letters are not uniform shapes, and certain combinations leave awkward gaps or crowd together when set with default spacing: a capital A beside a capital V, for instance, has two slanted edges that can open an ugly gap, while letters like T and o can tuck closer than the default allows. Kerning tightens or loosens the space in these particular pairs so the visual rhythm of the word is even, and no gap jumps out. It is a pair-by-pair adjustment, which is precisely what distinguishes it from other spacing controls. Good kerning is largely invisible — you notice it only when it is wrong, when a word looks lumpy or a famous logo reads as though two letters have drifted apart.

Kerning matters most where type is large, prominent, and read as a shape rather than a stream — logos, wordmarks, headlines, titles, and display type, where every letter is scrutinized and an uneven gap is glaring. In these settings, careful kerning is one of the details that separates professional, polished typography from amateur work; a wordmark with two letters spaced slightly wrong looks subtly off even to people who cannot name why. At small sizes in body text, kerning is handled automatically by the font's built-in kerning pairs and the software, and manual adjustment is rarely worth the effort. But for anything set large and seen often — a brand's logo above all — kerning is worth doing by eye, because it is read millions of times and the flaw compounds. It is a small craft with an outsized effect on how finished a piece of design feels.

Kerning is constantly confused with tracking, but they are different operations. Kerning adjusts the space between specific pairs of letters, one pair at a time, to fix awkward individual gaps. Tracking (also called letter-spacing) adjusts the space uniformly across a whole word, line, or block of text — loosening or tightening everything at once. So kerning is surgical and local, while tracking is global and even. You kern to fix a bad gap between an A and a V; you track to open up a word for an airy look or tighten a headline to fit a line. Using tracking where kerning is needed leaves the individual bad pairs untouched, and using kerning where tracking would do wastes effort. The two are complementary, but they are not the same lever.

Kerning is also distinct from leading, which sits on a different axis entirely. Leading is the vertical space between lines of text — the gap from one baseline to the next — and it governs how open or dense a paragraph feels top to bottom. Kerning and tracking work horizontally, between letters; leading works vertically, between lines. Confusing them is a beginner's error, but they are easy to keep straight once named: kerning is the space between two particular letters, tracking is the uniform space across many letters, and leading is the space between lines. Together they make up the core of typographic spacing, and each has its own purpose. A designer reaches for kerning to fix a specific pair, tracking to set an overall horizontal density, and leading to set the vertical rhythm of the text.

Kerning well means adjusting the spaces that actually need it and leaving the rest alone. Reserve manual kerning for large, prominent type — logos, wordmarks, headlines — where uneven pairs are visible and the type is seen repeatedly, and trust the font and software to handle spacing in body text at small sizes. Kern by eye, judging the visual evenness of the spaces rather than measuring equal gaps, because letters of different shapes need different spacing to look even — the goal is uniform perceived space, not uniform measured space. Look at the word as a whole, squinting to see the rhythm, and fix the pairs that jump out. And know when to stop: over-kerning, cramming letters until they touch or nearly merge, harms legibility as surely as leaving obvious gaps.

The failures are both directions of neglect and excess. Designers ignore kerning entirely on a logo and ship a wordmark with a visible gap that undermines an otherwise good mark. They confuse kerning with tracking and apply uniform spacing that leaves the real problem pairs untouched. They over-kern, tightening until letters collide and words become hard to read. They chase measured equal spacing instead of visual evenness, so shapes that need more room look cramped. And they waste effort hand-kerning body text where it makes no visible difference. The discipline is to kern where it counts, by eye, for perceived evenness, and to distinguish it clearly from tracking and leading — treating kerning as the fine, local craft it is, most valuable on the type people see most.

Kerning — the typographic adjustment of space between specific letter pairs for even, legible text — is a local fine-tuning distinct from tracking's uniform letter-spacing and from leading's line spacing.

Etymology: source.

Search interest for this term over the last five years:

View interest-over-time on Google Trends →

Areas of marketing where kerning is a core concern: