Toyo TOY Celsius Cargo LT275/65R18/10

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What 275/65R18 means

In the size 275/65R18, 275 is the section width in millimeters (10.83 in), 65 is the aspect ratio — the sidewall stands 65% as tall as the tire is wide, or 178.8 mm (7.04 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 32.07 inches, turning roughly 629 revolutions per mile. Overall diameter is what matters for speedometer accuracy and clearance when you change sizes, so compare it — not just the width — against your current tire.

The manufacturer lists the overall diameter of this specific tire as 18 inches — when clearance is tight, go by the published figure rather than the nominal size math.

The service description on this tire decodes to a load index of 123 — a maximum load of 3,417 lbs per tire, or 120 (3,086 lbs) per tire when mounted as duals. The speed symbol S corresponds to a maximum sustained speed of 112 mph.

Load Range E corresponds to a 10-ply rating.

Specifications

Frequently asked questions

Will 275/65R18 tires fit my vehicle?

Check the size molded into your current tire's sidewall or the tire placard inside the driver's door jamb — if it reads 275/65R18, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right. See every 275/65R18 tire in stock to compare options.

What does 123/120S mean on the Toyo Celsius Cargo?

123/120S breaks down as load index 123 — rated for 3,417 lbs per tire (120, or 3,086 lbs, in dual fitment) — with an S speed rating, good for a maximum sustained 112 mph.

What kind of tire is the Toyo Celsius Cargo?

The Toyo Celsius Cargo in 275/65R18 is a highway tire.

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