SEO Character Limits: One Cheat Sheet for Titles, Descriptions, URLs, and OG Tags
Search engines and social platforms truncate your text at a width, not a character count, but character counts are the practical proxy everyone uses. This is the one-page reference: the working limit for every field you'll fill in, plus the edge cases that make the numbers lie. Bookmark it, or keep our SEO character counter open in a tab while you write.
Pixels, not characters (read this once)
Google doesn't cut your title tag at 60 characters. It cuts it at roughly 580 pixels on desktop. Character counts are a stand-in because nobody measures pixels by hand. The catch is that characters aren't equal width: a W or m is wide, an i or l is narrow, and capitals eat more room than lowercase. A 60-character title in tight text fits; the same 60 characters in ALL CAPS or full of Ws gets truncated.
So treat every number below as a target, not a hard cap. Stay a little under, front-load the important words, and check the actual rendered width when a title is borderline. That's what the pixel-versus-character math in our title tag length guide and meta description length guide is for.
The cheat sheet
| Field | Practical limit | Hard cap / notes |
| --- | --- | --- |
| Title tag | 50-60 characters (~580px desktop) | No hard cap, but Google rewrites long titles |
| Meta description | 140-160 characters (~920px) | ~120 on mobile; Google often rewrites it |
| URL slug | 3-5 words, under ~60 characters | 2,048-char browser limit, irrelevant in practice |
| H1 | 20-70 characters | No SEO cap; readability is the limit |
| og:title | Up to ~60 characters | ~88 before most platforms truncate |
| og:description | 2-4 sentences, ~110 characters shown | Full text stored; cards show ~2 lines |
| twitter:title | 70 characters | Truncated to ~70 on the card |
| twitter:description | 200 characters | ~120 shown on summary_large_image |
| Image alt text | 8-16 words, under ~125 characters | Screen readers pause around 125 chars |
Every one of those is a display limit, not a penalty threshold. Going over doesn't hurt your ranking; it just means the tail gets cut off where you can't control the wording.
Field-by-field notes
Title tag
Aim for 50 to 60 characters. Put your primary term first, because if Google truncates, the front survives. Titles under about 30 characters are fine when a page genuinely needs a short one; there's no minimum. Google now rewrites a meaningful share of the titles it shows, often pulling from your H1, so a clean H1 is insurance.
Meta description
140 to 160 characters is the desktop sweet spot; mobile shows closer to 120. Google frequently replaces descriptions with a snippet pulled from the page when it thinks that answers the query better, so don't agonize over the last five characters. Write for the click.
URL slug
There's no SEO character limit that matters, but short slugs are easier to read, share, and cite. Three to five meaningful words beats a 12-word slug stuffed with keywords. Drop stop words (the, a, of) and use hyphens, not underscores. /seo-character-limits reads better than /the-complete-guide-to-all-of-the-seo-character-limits-2026.
H1
No search engine truncates your H1; it lives on the page, not in the SERP. The limit is readability. A 20-to-70-character H1 that matches the page's intent is right. It can differ from the title tag, and often should, since the title competes in search results and the H1 speaks to someone already on the page. More on that split in multiple H1 tags.
Open Graph and Twitter fields
Social cards are the most aggressive truncators. og:title shows about 60 characters before the ellipsis on most platforms; og:description shows roughly two lines, around 110 characters, on a Facebook or LinkedIn card even though the full value is stored. X shows about 70 characters of twitter:title. Design the first line to stand alone, and preview the real card with the Open Graph checker before you rely on it.
Alt text
Keep alt text under about 125 characters, because that's roughly where the popular screen readers cut off a single announcement. One accurate sentence describing the image is the target; you don't need to say "image of." The full reasoning is in our image alt text guide.
The edge cases that break the numbers
A few things make the character counts lie, and they're worth knowing before you trust a green checkmark:
- Wide characters. Capitals,
W,M,m, and@are far wider thani,l,t, or.. A title full of them truncates early even under 60 characters. This is why a pixel-aware counter beats counting characters in your head. - Emoji and symbols. An emoji can render as one glyph but count as two or more characters in code, since it's multiple UTF-16 units. Some counters miscount them; some platforms strip them. Test before shipping a title with an emoji.
- Brand suffix. If your title template appends
| Brand Name, that suffix eats into the visible limit on every page. A 15-character brand suffix leaves you about 45 characters for the actual title. - Non-Latin scripts. Chinese, Japanese, and Korean characters are roughly double-width, so the character counts above don't apply; the pixel budget is what holds.
When any field is borderline, paste it into the SEO character counter. It counts characters and estimates pixel width for titles and descriptions, which is the number that actually decides whether your text survives.
The minimums nobody mentions
Every guide obsesses over maximums, but a field can be too short too. A 20-character title like "Home | Acme" wastes the ~580px of headline space Google gives you, and it usually means the page isn't telling searchers (or the algorithm) what it's about. If you have room for a descriptive phrase and a term people actually search, use it. The same goes for a two-word meta description: technically valid, but you're leaving most of the snippet blank.
There's no penalty for a short field, so this isn't a rule, it's an opportunity cost. The limits in the table are ceilings, not quotas, and you don't have to fill them. But a title or description that comes in at a third of the available width is usually a sign the field was auto-generated or written as an afterthought. Treat the practical limit as a budget you can spend, not a line you have to reach.
Frequently Asked Questions
What is the ideal title tag length for SEO?
50 to 60 characters, or about 580 pixels on desktop. Google truncates by pixel width, not character count, so front-load your important words. There's no minimum and no ranking penalty for going long; the tail just gets cut off or rewritten.
How long should a meta description be?
140 to 160 characters on desktop, closer to 120 for mobile. Google often replaces the description with a snippet from the page, so write it to earn the click rather than to hit an exact count. Going over the limit doesn't hurt rankings.
Is there a character limit for URL slugs?
Not one that affects SEO. Browsers support URLs up to 2,048 characters, far more than you'd ever use. The practical guidance is 3 to 5 meaningful words, under about 60 characters, with hyphens between words, because short URLs are easier to read and share.
Do character limits affect rankings?
No. These are display limits, not ranking thresholds. Exceeding them means your text gets truncated in the search result or social card, which can lower click-through, but it doesn't directly change where you rank. The goal is control over how your listing reads.
Why does my title get cut off even though it's under 60 characters?
Because Google truncates by pixel width, and wide characters (capitals, W, M, m) take more room than narrow ones. A 60-character title in wide text can exceed the ~580px budget. Use a pixel-aware counter and shorten titles that render wide.