A 275/60R22 tire is 35.0 inches (889 mm) tall and 10.8 inches wide. The sidewall is 60% of the width, 6.5 inches, on a 22-inch wheel, and the tire turns about 576 times per mile.
In flotation terms that is about 35.0x10.8R22, closest to the common 35x12.50R22 (35.0"). People often call it a 35-inch tire.
The size most often compared with it is 295/55R22, which is 0.2" shorter (−0.6%). At an indicated 60 mph you would be doing 59.6 mph on it.