Section Width705 mm (27.8")
Aspect Ratio33%
Rim Diameter18"
Overall Diameter923 mm (36.3")
Sidewall Height233 mm
Circumference2898 mm
705/33R18 — Buy Tires

Everything to know about the 705/33R18 tire size

Size geometry

A 705/33R18 tire has a 705mm section width and a 33% aspect ratio, mounted on a 18-inch rim. Sidewall height works out to 232.7mm (9.16") and overall outside diameter is 922.5mm (36.32"). At highway speed the tire completes about 345 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 705/33R18 is unavailable, the closest same-diameter substitutes on the same rim are 695/33R18 and 715/33R18. Both keep your speedometer reading within 1% — safe for daily use, ABS, and stability control. Always verify load and speed ratings before swapping.

Plus / minus sizing options

For a 705/33R18 you can upsize to 715/31R19 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 695/35R17 (minus-one) for a softer ride or winter setup. Both stay inside the Âą3% diameter tolerance that ABS and TPMS systems expect.

Vehicle compatibility

0 vehicles in our database run the 705/33R18 tire size from the factory. Aftermarket fitment depends on rim width, offset, and clearance — match these specs to your wheel before purchasing tires.

Vehicles Using 705/33R18

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