195/45R15 Tire Size Specifications
This tire size 195/45R15 fits 2 vehicles in our database.
Everything to know about the 195/45R15 tire size
Size geometry
A 195/45R15 tire has a 195mm section width and a 45% aspect ratio, mounted on a 15-inch rim. Sidewall height works out to 87.8mm (3.45") and overall outside diameter is 556.5mm (21.91"). At highway speed the tire completes about 572 revolutions per kilometre â your speedometer and odometer were calibrated against this number.
Direct substitute sizes
If 195/45R15 is unavailable, the closest same-diameter substitutes on the same rim are 185/47R15 and 205/43R15. 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 195/45R15 you can upsize to 205/37R16 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 185/54R14 (minus-one) for a softer ride or winter setup. Both stay inside the Âą3% diameter tolerance that ABS and TPMS systems expect.
Vehicle compatibility
2 vehicles in our database run the 195/45R15 tire size from the factory. Aftermarket fitment depends on rim width, offset, and clearance â match these specs to your wheel before purchasing tires.