Section Width105 mm (4.1")
Aspect Ratio636%
Rim Diameter19"
Overall Diameter1818 mm (71.6")
Sidewall Height668 mm
Circumference5712 mm
105/636R19 — Buy Tires

Everything to know about the 105/636R19 tire size

Size geometry

A 105/636R19 tire has a 105mm section width and a 636% aspect ratio, mounted on a 19-inch rim. Sidewall height works out to 667.8mm (26.29") and overall outside diameter is 1818.2mm (71.58"). At highway speed the tire completes about 175 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 105/636R19 is unavailable, the closest same-diameter substitutes on the same rim are 95/703R19 and 115/581R19. 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 105/636R19 you can upsize to 115/570R20 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 95/716R18 (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 105/636R19 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 105/636R19

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