What size tire is a 33 12.50 r18?
Tire size equivalent chart for 33″, 35″, 37″ or 40″ tires
What does 275 70 mean on a tire?
275/70R18 tire has a width of 10.8 inches or 275 mm that reflects the measurement of tire’s width from its inner sidewall to its outer sidewall at the widest point (excluding decorations, protective ribs or raised letters). Tire width is also called tread width, section width or cross section width.