How To Write Meta Descriptions
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Length limits: 155-160 characters
The practical character limit for meta descriptions is 155 to 160 characters on desktop Google, which typically displays around 920 pixels of description text. Mobile truncation is shorter, around 120 characters, because the viewport is narrower. Bing displays up to about 168 characters. The 155-160 range is the safe target for primary search engines. Going over risks having the description cut off with an ellipsis; going well under wastes prime snippet real estate where you could be selling the click.
Pixel width versus character count
Google actually truncates based on pixel width, not character count. The character range is a proxy. Wide characters like capital M, W, or em dash consume more pixels per character than narrow ones like i, l, and punctuation. A description using many wide characters can truncate at 145 characters; one using many narrow characters can fit 165. Pixel-aware checkers measure actual width in the same font Google uses. For ordinary prose the 155-160 character range is reliable.
Why Google rewrites descriptions
Google rewrites roughly 60 to 70 percent of descriptions, using content from the page that better matches the query. When your meta description does not mention terms from the searcher’s query, Google often pulls a snippet from the body that does. When your description is too short, generic (“Welcome to our site”), or clearly doesn’t describe the page, Google overrides it. You can reduce rewrites by writing descriptions that include the likely queries your page ranks for and that read like a natural snippet, not a marketing tagline.
Structure that converts
The best-performing descriptions have three parts: a hook that matches the searcher’s intent, a specific promise of what the page delivers, and a call to action. A typical structure fits all three in 150 characters. Lead with the value proposition, specify what makes the page different, and tell the reader what to do next. Avoid starting every description with the brand name—brand is already visible in the domain.
Include the target query naturally
“Learn more” is the weakest CTA because it describes every link ever written. Stronger CTAs are specific: “Compare plans”, “Get a free quote”, “Download the template”, “Try free for 14 days”, “Calculate your savings.” The CTA should set the expectation of what happens after the click. Mismatched CTAs (promising a calculator then serving a 2,000-word article) hurt both CTR and bounce rate.
Call to action choices
Many CMS defaults copy the same description onto every page in a section or template. This is mildly harmful: Google’s Search Console flags duplicate meta descriptions, and identical descriptions guarantee Google will rewrite every page that shares them. Every indexable page should have a unique, page-specific description. For large sites, generate descriptions from templated fields (product name, category, key attribute) so no two pages share the same string.
Duplicate descriptions across pages
Mobile SERPs truncate earlier because the viewport is narrower. A 160-character description that fits cleanly on desktop can be cut at 120 on mobile. Front-load the most important content: the first 120 characters should stand alone as a complete pitch. Put the CTA and any supporting detail in the last 30-40 characters where they are nice to have but not required.
Mobile versus desktop truncation
Do not use double quotes in a description—Google strips them. Do not include HTML, emojis beyond unicode characters, or keyword-stuffed lists. Do not include the brand name repeatedly. Do not include dates or “Updated 2023” in templated descriptions because they go stale instantly and signal to users that the content may be outdated. Do not duplicate the title tag in the description—that wastes space and contains no new information.
What not to include
In Google Search Console, compare the CTR column of Performance data across queries and pages. Pages ranking in positions 2-6 with below-average CTR are candidates for meta description improvements. Rewrite, wait two to four weeks for Google to re-crawl and re-serve, and compare CTR again. Changes below position 10 are harder to measure because impression volume is too low for statistical confidence.