115/645R14 Tire Size Specifications
This tire size 115/645R14 fits 0 vehicles in our database.
Everything to know about the 115/645R14 tire size
Size geometry
A 115/645R14 tire has a 115mm section width and a 645% aspect ratio, mounted on a 14-inch rim. Sidewall height works out to 741.8mm (29.20") and overall outside diameter is 1839.1mm (72.41"). At highway speed the tire completes about 173 revolutions per kilometre â your speedometer and odometer were calibrated against this number.
Direct substitute sizes
If 115/645R14 is unavailable, the closest same-diameter substitutes on the same rim are 105/706R14 and 125/593R14. 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 115/645R14 you can upsize to 125/583R15 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 105/719R13 (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 115/645R14 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 115/645R14
tire_size.no_vehicles_found