Section Width505 mm (19.9")
Aspect Ratio55%
Rim Diameter16"
Overall Diameter962 mm (37.9")
Sidewall Height278 mm
Circumference3022 mm
505/55R16 — Buy Tires

Everything to know about the 505/55R16 tire size

Size geometry

A 505/55R16 tire has a 505mm section width and a 55% aspect ratio, mounted on a 16-inch rim. Sidewall height works out to 277.8mm (10.94") and overall outside diameter is 961.9mm (37.87"). At highway speed the tire completes about 331 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 505/55R16 is unavailable, the closest same-diameter substitutes on the same rim are 495/56R16 and 515/54R16. 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 505/55R16 you can upsize to 515/51R17 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 495/59R15 (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 505/55R16 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 505/55R16

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