155/66R15 Tire Size Specifications
This tire size 155/66R15 fits 0 vehicles in our database.
Everything to know about the 155/66R15 tire size
Size geometry
A 155/66R15 tire has a 155mm section width and a 66% aspect ratio, mounted on a 15-inch rim. Sidewall height works out to 102.3mm (4.03") and overall outside diameter is 585.6mm (23.06"). At highway speed the tire completes about 544 revolutions per kilometre â your speedometer and odometer were calibrated against this number.
Direct substitute sizes
If 155/66R15 is unavailable, the closest same-diameter substitutes on the same rim are 145/71R15 and 165/62R15. Both keep your speedometer reading within 1% â safe for daily use, ABS, and stability control. Always verify load and speed ratings before swapping.
Plus / minus sizing options
For a 155/66R15 you can upsize to 165/54R16 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 145/79R14 (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 155/66R15 tire size from the factory. Aftermarket fitment depends on rim width, offset, and clearance â match these specs to your wheel before purchasing tires.
Vehicles Using 155/66R15
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