SERP Preview
See where your title and description get cut, measured by real pixel width rather than by counting characters.
Approximate result
Title fits. px of about 600px. Description fits.
These widths are approximations of typical rendering. Google publishes no character limit and no pixel value, and says only that the title link is truncated “typically to fit the device width”. What this shows reliably is the relative effect: which of two titles gets cut sooner, and roughly where.
Why there is no character counter here
Almost every SERP preview tool shows something like “57 / 60 characters”. That number is misleading, because Google truncates by pixel width and characters are not the same width. WWWWW is roughly three times the width of lllll, so two titles with identical character counts can behave completely differently.
Google’s own documentation is explicit that there is no limit on how long a title element can be, and that the title link “is truncated in Google Search results as needed, typically to fit the device width”. So this tool measures actual rendered width and tells you where the cut lands.
The more important point
Google may not use your title at all. It generates title links from your title element, the visible H1, other headings, og:title, prominent page text and even inbound anchor text, and overrides you when it detects half-empty titles, boilerplate or several equally prominent headings.
Which means the job is less about fitting a box and more about removing Google’s reasons to ignore you. The full version of that argument is in the on-page module.