SEO Title
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How to use the SEO Title Length Checker
Character counts mislead — pixel widths are what Google uses. The checker measures title pixel width using the same font sizes Google does, so the verdict matches the live SERP.
Paste titles to check
One title per line. Up to a few hundred at a time — useful for auditing an entire site's title tags from a sitemap export.
Review pixel width per title
Each title shows desktop pixel width (target: under 580 px) and mobile pixel width (target: under 480 px). Titles that overflow are flagged in red.
Identify wide-character offenders
Titles dominated by W, M, capital letters, or em-dashes are most likely to overflow. The checker highlights which characters are pushing your width.
Tighten and re-check
Cut filler words ("the best", "ultimate guide to"), front-load the keyword, end with brand. Re-check after each edit.
Why pixel width — not character count — decides title truncation
Most title-length tools count characters. Google measures pixels. The two diverge dramatically: a 55-char title made of W's is wider than a 65-char title made of i's.
Pixel widths of common letters
In Google's SERP title font (20 px Arial), letter widths vary by 3.5×:
- i, l, t — 4–6 px
- e, a, n, o — 9–11 px
- m, w — 14–18 px
- M, W — 18–20 px
- Spaces and punctuation — 4–8 px
Why the 60-character rule fails
The popular "keep titles under 60 characters" rule fits comfortably for lowercase-heavy titles but breaks for ALL CAPS or W-heavy titles. The reliable approach: pixel-check every title before publish, especially titles with brand names containing wide characters.
Mobile is stricter than desktop
Mobile cuts at 480 px (versus 580 px on desktop) — a 17% reduction. Most titles that fit on desktop overflow on mobile. Since mobile traffic is over 60% of search, prioritize the mobile width when the two conflict.
Frequently asked questions
What's the maximum SEO title length?
580 pixels on desktop and 480 pixels on mobile — measured in actual pixel rendering, not character count. Most titles fit between 50 and 60 characters but capital-heavy or W-heavy titles can overflow at 50 characters while lowercase titles can fit at 70.
Why does Google use pixels instead of characters?
Because the SERP title font has variable-width characters. A character-based limit would either truncate skinny titles unnecessarily or let wide titles overflow. Pixel measurement matches what users actually see — uniform visual width.
Should I optimize for desktop or mobile pixel width?
Mobile, since it's stricter (480 px vs 580 px) and accounts for 60%+ of searches. Titles that fit on mobile automatically fit on desktop; the reverse isn't true.
Are emojis counted in title pixel width?
Yes. Emojis vary in width but typically render at 18–22 px each (roughly the width of a capital W). Including 1-2 emojis in a title can push pixel width over the limit even if character count is well under 60.
Does Google's title pixel limit change?
Occasionally — Google has adjusted the desktop limit between 545 px and 600 px in different test periods. The current stable target is 580 px desktop, 480 px mobile. We update these limits when Google changes them.