Equal size settings do not guarantee equal-looking letters
Google’s Chrome typography guidance explains that differences in lowercase x-height can make fonts appear larger or smaller even when mixed in the same layout. It describes the CSS font-size-adjust property as one way to normalize a chosen metric. That web-layout behavior is different from a word processor’s font-size menu. There is no need to invent a universal “largest font” when the answer changes with the metric and the available families.
Make the comparison with the exact text and a fixed area
Choose the actual heading or paragraph, including its punctuation. Duplicate it into equally sized areas, keep the numeric font size constant and compare families one at a time. Record three observations separately: the apparent height of the letters, the length of the line and the point at which it wraps. A wide word is not necessarily tall, and a tall condensed title may occupy less horizontal space than a broad one. For a paragraph, also inspect line spacing and clipping rather than counting only the resulting pages.
Choose size for the task instead of inflating a document
Compare Anton, Inter and Roboto Condensed using identical wording. These independent specimens illustrate different proportions, not a ranked list of the largest fonts. If a submission specifies font, size or margins, follow that specification rather than changing proportions to imitate additional content. The Google Docs size guide addresses that application separately. For decorative text to paste into a caption, our free font generator changes Unicode characters; it does not set the destination app’s point size or guarantee larger-looking text.
Your questions, answered.
Which font looks biggest at the same point size?
Compare the fonts available in your application with your exact wording. The result depends on whether you mean capital height, lowercase height, width or overall occupied space.
Will copyable large-looking letters change the font-size setting?
No. Copying different Unicode characters does not control the receiving application’s font-size setting or guarantee identical rendering.
Sources & background
Sources supporting this page’s explanations. Practical examples are our editorial suggestions.