Section Width155 mm (6.1")
Aspect Ratio318%
Rim Diameter34"
Overall Diameter1849 mm (72.8")
Sidewall Height493 mm
Circumference5810 mm
155/318R34 — Buy Tires

Everything to know about the 155/318R34 tire size

Size geometry

A 155/318R34 tire has a 155mm section width and a 318% aspect ratio, mounted on a 34-inch rim. Sidewall height works out to 492.9mm (19.41") and overall outside diameter is 1849.4mm (72.81"). At highway speed the tire completes about 172 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 155/318R34 is unavailable, the closest same-diameter substitutes on the same rim are 145/340R34 and 165/299R34. 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 155/318R34 you can upsize to 165/291R35 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 145/349R33 (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 155/318R34 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 155/318R34

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