265/75R16 designates a tire 265 mm (10.4") wide with a sidewall 75% as tall as it is wide — about 199 mm (7.8") — mounted on a 16-inch wheel. That works out to an overall diameter of roughly 31.6", a circumference of about 99.4", and approximately 637 revolutions per mile. Exact figures vary slightly by manufacturer and tread design.
Of the 115 265/75R16 tire models we track, the most common category is all-terrain (74 models), followed by highway all-season truck (31) — a good indicator of the kind of vehicles and driving this size is designed for.