Meta Description Character Limit: The Exact Number That Matters

The meta description is the two lines of grey text under your title in search results — 155-odd characters that decide whether the click lands on your result or a competitor's. It's the highest-leverage microcopy in SEO, it has exact length constraints, and unlike most ranking advice, the fix takes minutes. Here are the numbers and how to write inside them.

The exact numbers: ~155–160 on desktop, ~120 on mobile

Google truncates meta descriptions at a fixed display width, which works out to about 155–160 characters on desktop and 120 on mobile, where the viewport is narrower. The cut is technically by pixels, not characters — wide letters like W take more room than thin ones — which is why you'll see the desktop threshold quoted anywhere from 150 to 165 depending on the source. All of them are describing the same width. The practical target that covers every surface: write to 150–155 characters, and make sure the sentence still works with the last 35 characters chopped off, because on a phone they will be.

Where each search engine cuts

The truncation points worth taping to your monitor:

Bing's behavior lands in the same band as Google's, and DuckDuckGo truncates similarly. There is no search engine where writing past roughly 160 characters earns you anything — the tail simply never renders.

Not a ranking factor — but it drives clicks

Google has said plainly, and repeatedly, that meta descriptions are not a direct ranking factor. What they are is ad copy you don't pay for: the description is the only text in the result you fully control, and a better one moves click-through rate — often dramatically on informational queries where five results look alike. Higher click-through from the same position means more traffic from the same ranking, which is the entire point of ranking. So treat the tag as conversion copy, not a keyword slot; a description that reads like a keyword dump repels exactly the click it was supposed to win.

Google rewrites 60–70% of descriptions

Here's the honest complication: Google rewrites the meta description roughly 60–70% of the time, swapping in text pulled from the page that better matches the query. Studies of large result samples land in that range consistently, so your tag is a strong suggestion, not a contract. Rewrites happen most often when the tag doesn't contain the phrase the user searched, doesn't match what the page actually delivers, is duplicated across many pages, or reads like a keyword list. To raise your survival rate: write a unique description for every page, work the page's primary phrase in naturally, and describe the real content. And even when Google does rewrite, a tight, honest tag still governs what social networks and other scrapers display when the URL is shared — the copy keeps working after the search result gives up on it.

Good vs. bad meta descriptions

Bad: "Welcome to our website! We are a leading provider of innovative solutions for all your needs. Contact us today to learn more about our services." That's 152 characters of nothing — no specific value, no reason to click, no promise a searcher can verify. It also describes ten million other sites simultaneously.

Good: "A 5-minute speech is about 650 words at the average speaking pace of 130 words per minute. See the full chart from 1 to 20 minutes and time your own." Number up front, concrete promise, clear payoff. Notice what the good example does structurally: the value lands in the first 120 characters, so the mobile cut takes nothing essential. Front-load, then decorate.

One formatting trap to avoid: double quotation marks in the tag. Google tends to truncate the description at the first quotation mark it meets, so a tag built around a quoted phrase loses everything after it. Write descriptions without scare quotes, and save quotation marks for the title — if anywhere.

A 60-second meta description checklist

• 150–155 characters — covers desktop fully and most of mobile.
• Primary keyword in the first half, phrased the way people actually search it.
• One concrete benefit or number — specificity out-clicks adjectives every time.
• A verb — learn, see, compare, download — so the line reads as an offer rather than a label.
• No double quotes, no duplication across pages, no "Welcome to our website."

Before it ships, paste the draft into the WordlyCount character counter — 150 looks a lot shorter in a code editor than it does in a snippet. And if you write other microcopy too, the discipline transfers: subject lines and ad headlines obey the same front-load-and-cut logic we cover in email subject line length and Google Ads character limits.