Updated · Built and checked by the PlinzoTools team, formulas tested against published sources
Check whether your meta description fits Google's typical search-result pixel width before it gets truncated.
Like the SEO Title Pixel Width Checker but calibrated for meta descriptions -- Google's SERP snippet width truncates by rendered pixels, not character count, at a smaller font size than titles. This tool measures your description's rendered pixel width (14px Arial) against a 920px limit.
Paste your meta description. The measured pixel width and fit status appear instantly.
Your description is measured using the browser's canvas text engine in Arial at 14 pixels, and the width is compared with a limit of 920 pixels. The result panel shows the rounded width out of 920, green when it fits and red when it is likely to be cut off, together with a filling progress bar. Because the box is a multi-line text area, the measurement treats your whole input as one continuous line of text. Line breaks are not turned into extra rows, so avoid pasting several paragraphs; enter the description as a single run of text.
Snippets in search results are usually wrapped across two lines, so a single-line width around 920 pixels approximates about two lines at the width of a desktop results column. Real behaviour changes: mobile results are narrower and may cut off sooner, and search engines often replace your description with text they pull from the page when they think it matches the query better. Treat the measurement as a way to avoid clear overflow, not as a rule that guarantees how the snippet is shown.
Suppose you write a hypothetical description for a calculator page and the tool reports 1,050 out of 920 in red. The end of the sentence, where you mention a call to action, is probably cut. You can shorten it by removing filler openers like "Welcome to" or "This page is about", replacing a long phrase with a shorter equivalent, and moving the key benefit to the beginning. If the count drops to around 860 and turns green, you have some safety margin for font differences. Then re-read the text to check it still makes sense on its own.
When the measurement is within a few dozen pixels of the limit, treat it as a coin flip and trim a little. When it is far below, for example half of the limit, there may be room to add a useful detail such as a feature, a format or a limit of the tool. Very short descriptions are allowed, but they can leave useful space unused.
It's a close approximation -- Google's actual snippet rendering isn't publicly documented pixel-for-pixel and can vary. Treat the result as a strong guide, not an absolute guarantee.
It measures with Arial at 14 pixels against a 920 pixel limit, an approximation of a typical desktop snippet spanning about two lines.
No. They may pick text from the page instead when it better matches the search. A well-written description improves your chances but is not a guarantee.
No. Enter one run of text, since the tool measures it as a single line and does not simulate line wrapping.
Not necessarily, but if the width is far below the limit you may be leaving space for a useful detail unused.
Reference: Google Search Central