Section Width155 mm (6.1")
Aspect Ratio450%
Rim Diameter19"
Overall Diameter1878 mm (73.9")
Sidewall Height698 mm
Circumference5899 mm
155/450R19 — Buy Tires

Everything to know about the 155/450R19 tire size

Size geometry

A 155/450R19 tire has a 155mm section width and a 450% aspect ratio, mounted on a 19-inch rim. Sidewall height works out to 697.5mm (27.46") and overall outside diameter is 1877.6mm (73.92"). At highway speed the tire completes about 170 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 155/450R19 is unavailable, the closest same-diameter substitutes on the same rim are 145/481R19 and 165/423R19. Both keep your speedometer reading within 1% — safe for daily use, ABS, and stability control. Always verify load and speed ratings before swapping.

Plus / minus sizing options

For a 155/450R19 you can upsize to 165/415R20 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 145/490R18 (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 155/450R19 tire size from the factory. Aftermarket fitment depends on rim width, offset, and clearance — match these specs to your wheel before purchasing tires.

Vehicles Using 155/450R19

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