Section Width185 mm (7.3")
Aspect Ratio56%
Rim Diameter15"
Overall Diameter588 mm (23.2")
Sidewall Height104 mm
Circumference1848 mm
185/56R15 — Buy Tires

Everything to know about the 185/56R15 tire size

Size geometry

A 185/56R15 tire has a 185mm section width and a 56% aspect ratio, mounted on a 15-inch rim. Sidewall height works out to 103.6mm (4.08") and overall outside diameter is 588.2mm (23.16"). At highway speed the tire completes about 541 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 185/56R15 is unavailable, the closest same-diameter substitutes on the same rim are 175/59R15 and 195/53R15. 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 185/56R15 you can upsize to 195/47R16 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 175/66R14 (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 185/56R15 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 185/56R15

tire_size.no_vehicles_found