Section Width155 mm (6.1")
Aspect Ratio66%
Rim Diameter16"
Overall Diameter611 mm (24.1")
Sidewall Height102 mm
Circumference1920 mm
155/66R16 — Buy Tires

Everything to know about the 155/66R16 tire size

Size geometry

A 155/66R16 tire has a 155mm section width and a 66% aspect ratio, mounted on a 16-inch rim. Sidewall height works out to 102.3mm (4.03") and overall outside diameter is 611.0mm (24.06"). At highway speed the tire completes about 521 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 155/66R16 is unavailable, the closest same-diameter substitutes on the same rim are 145/71R16 and 165/62R16. 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 155/66R16 you can upsize to 165/54R17 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 145/79R15 (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 155/66R16 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 155/66R16

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