Meta Description Length Checker

Instantly see if your meta description is the right length for Google.

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The meta description is the two-line summary that appears beneath your page title in a Google search result. It is one of the highest-leverage pieces of text on any webpage: a well-crafted description improves click-through rate (CTR) by making searchers understand exactly what they will get before clicking, while a truncated or missing one hands that impression to Google’s automatic snippet generator.

This tool checks the character count of your meta description in real time, maps it against Google’s display window, estimates the pixel width (the dimension Google actually measures), and shows a live SERP preview so you can see exactly how the snippet will look in search results.

How it works

Character counting

The tool counts every character you type, including spaces and punctuation. The colour-coded zone bar divides the range into four segments:

  • 0 – 119 characters (amber): too short. Google is likely to replace your snippet with body text that it judges more relevant to the query.
  • 120 – 158 characters (green): ideal. The full description is shown on the vast majority of desktop search results.
  • 159 – 200 characters (orange): getting long. Google will show this in full on wide viewports, but mobile and some desktop configurations will truncate it.
  • 201+ characters (red): too long. Google will cut the text with a trailing ”…” regardless of device.

Pixel-width estimation

Google’s desktop SERP truncates snippets at approximately 920 CSS pixels of rendered width. Because proportional fonts give different widths to different glyphs (capital W versus lowercase i), character count alone is an approximation. This tool uses a per-character width heuristic:

  • Wide characters (W, M, Q, @, %) ≈ 8 px
  • Narrow characters (i, I, l, 1, !, |, punctuation, space) ≈ 4 px
  • Most other characters ≈ 6 px

The estimated total is shown alongside a 920 px progress bar. If the bar turns red, consider shortening even if the character count is within the 120-158 range.

SERP preview

Expand the optional panel to enter your page title and URL. The preview renders a mock Google desktop result so you can judge the full visual impression — including whether the description is cut mid-sentence.

Keyword inclusion check

Enter your focus keyword to verify it appears at least once in the description. Google bolds matching terms in the live SERP, making your result stand out and reinforcing relevance to the user.

Worked example

A page targeting “best running shoes for flat feet” might have this draft description:

Discover the best running shoes for flat feet in 2026. Our experts tested 30+ models — find maximum support, comfort and durability for every budget.

  • Character count: 146 (ideal range)
  • Estimated pixel width: ~870 px (under the 920 px cutoff)
  • Focus keyword “best running shoes for flat feet”: present
  • Ends with a sentence that invites the click: yes

Status: Ideal length — no changes needed.

Formula note

The raw character count is simply text.length in JavaScript, which counts Unicode code points. For most Latin-script descriptions this equals the visual character count. Emoji or characters outside the Basic Multilingual Plane count as two code points (text.length) but one visual glyph; for practical SEO purposes these are rare enough not to matter.

The pixel-width formula used here is a weighted sum across individual characters and is an approximation. For exact pixel measurement you would need to render the string to an off-screen canvas element using the precise font Google’s SERP uses — a technique that requires browser fonts to match Google’s CDN fonts. The approximation here is accurate to within ±5% for typical English descriptions.

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