285/40R23 Tire Size Specifications
This tire size 285/40R23 fits 2 vehicles in our database.
Everything to know about the 285/40R23 tire size
Size geometry
A 285/40R23 tire has a 285mm section width and a 40% aspect ratio, mounted on a 23-inch rim. Sidewall height works out to 114.0mm (4.49") and overall outside diameter is 812.2mm (31.98"). At highway speed the tire completes about 392 revolutions per kilometre â your speedometer and odometer were calibrated against this number.
Direct substitute sizes
If 285/40R23 is unavailable, the closest same-diameter substitutes on the same rim are 275/41R23 and 295/39R23. 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 285/40R23 you can upsize to 295/34R24 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 275/46R22 (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 285/40R23 tire size from the factory. Aftermarket fitment depends on rim width, offset, and clearance â match these specs to your wheel before purchasing tires.