205/138R12 Tire Size Specifications
This tire size 205/138R12 fits 0 vehicles in our database.
Everything to know about the 205/138R12 tire size
Size geometry
A 205/138R12 tire has a 205mm section width and a 138% aspect ratio, mounted on a 12-inch rim. Sidewall height works out to 282.9mm (11.14") and overall outside diameter is 870.6mm (34.28"). At highway speed the tire completes about 366 revolutions per kilometre â your speedometer and odometer were calibrated against this number.
Direct substitute sizes
If 205/138R12 is unavailable, the closest same-diameter substitutes on the same rim are 195/145R12 and 215/132R12. 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 205/138R12 you can upsize to 215/126R13 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 195/152R11 (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 205/138R12 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 205/138R12
tire_size.no_vehicles_found