Check title tag length in characters and pixels for Google desktop and mobile SERPs. Batch check multiple titles with truncation preview.
This tool measures a title tag two ways: raw character count and estimated rendered pixel width, then previews how the title would appear in a Google desktop and mobile search snippet, including where an ellipsis would cut it off. You can check one title or paste a batch, one per line, to screen a whole list at once. The thing most people get wrong: Google truncates based on pixel width in its SERP font, not character count, so a 60-character title full of narrow letters like 'i' and 'l' can survive intact while a 50-character title full of 'W' and 'M' gets clipped.
A concrete input and expected output from the current implementation.
Input
Best Running Shoes for Flat Feet in 2026 | Brand Name
Expected output
53 characters. Estimated pixel width is under the desktop cutoff, so the preview shows the full title with no ellipsis; the mobile preview is narrower and worth checking separately.
Character count is a straight tally of the input string; the pixel estimate and truncation flag come from summing each character's rendered width against the tool's font-width table and comparing it to the desktop and mobile limits.
Each character is looked up in a width table approximating the font Google renders in search results at typical SERP size, and the widths are summed to get an estimated total. Wide characters (W, M, @) cost more than narrow ones (i, l, t, punctuation), which is why two titles of equal length can land on opposite sides of the cutoff.
Paste multiple titles, one per line, and each gets its own row with character count, estimated pixel width, and a pass/fail flag for desktop and mobile. Each row also renders a truncation preview showing exactly where an ellipsis would land if the estimate puts it over the limit.
Two likely reasons: the tool's pixel estimate uses an approximated font table that will not match every rendering environment exactly, or Google rewrote your title link instead of showing your literal title tag, which it does often enough that this tool cannot predict it.
No single number is correct because Google truncates by pixel width, not character count. A common rule of thumb is roughly 50 to 60 characters as a rough safety margin, but titles with wide capital letters need to stay shorter than that, and titles with narrow lowercase letters can often run longer.
The example and behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.
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