See exactly how your title and meta description will appear in Google — on desktop and mobile — with live pixel-width measurement.
Google truncates titles beyond roughly 580 pixels (≈ 60 characters) and descriptions beyond roughly 920 pixels (≈ 155 characters). A clear snippet, with the main keyword early in the title and a call to action in the description, increases your click-through rate.
Yes, Google may rewrite a title if it considers it unhelpful. A clear title aligned with search intent reduces that risk.
In pixels. Some letters (m, w) are wider than others (i, l), which is why this tool measures actual width.