Section Width635 mm (25.0")
Aspect Ratio56%
Rim Diameter15"
Overall Diameter1092 mm (43.0")
Sidewall Height356 mm
Circumference3431 mm
635/56R15 — Buy Tires

Everything to know about the 635/56R15 tire size

Size geometry

A 635/56R15 tire has a 635mm section width and a 56% aspect ratio, mounted on a 15-inch rim. Sidewall height works out to 355.6mm (14.00") and overall outside diameter is 1092.2mm (43.00"). At highway speed the tire completes about 291 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 635/56R15 is unavailable, the closest same-diameter substitutes on the same rim are 625/57R15 and 645/55R15. 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 635/56R15 you can upsize to 645/53R16 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 625/59R14 (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 635/56R15 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 635/56R15

tire_size.no_vehicles_found