Section Width285 mm (11.2")
Aspect Ratio78%
Rim Diameter13"
Overall Diameter775 mm (30.5")
Sidewall Height222 mm
Circumference2434 mm
285/78R13 — Buy Tires

Everything to know about the 285/78R13 tire size

Size geometry

A 285/78R13 tire has a 285mm section width and a 78% aspect ratio, mounted on a 13-inch rim. Sidewall height works out to 222.3mm (8.75") and overall outside diameter is 774.8mm (30.50"). At highway speed the tire completes about 411 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 285/78R13 is unavailable, the closest same-diameter substitutes on the same rim are 275/81R13 and 295/75R13. 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 285/78R13 you can upsize to 295/71R14 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 275/85R12 (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 285/78R13 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 285/78R13

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