Section Width505 mm (19.9")
Aspect Ratio151%
Rim Diameter15"
Overall Diameter1906 mm (75.0")
Sidewall Height763 mm
Circumference5988 mm
505/151R15 — Buy Tires

Everything to know about the 505/151R15 tire size

Size geometry

A 505/151R15 tire has a 505mm section width and a 151% aspect ratio, mounted on a 15-inch rim. Sidewall height works out to 762.5mm (30.02") and overall outside diameter is 1906.1mm (75.04"). At highway speed the tire completes about 167 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 505/151R15 is unavailable, the closest same-diameter substitutes on the same rim are 495/154R15 and 515/148R15. 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 505/151R15 you can upsize to 515/146R16 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 495/157R14 (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 505/151R15 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 505/151R15

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