Section Width445 mm (17.5")
Aspect Ratio55%
Rim Diameter19"
Overall Diameter972 mm (38.3")
Sidewall Height245 mm
Circumference3054 mm
445/55R19 — Buy Tires

Everything to know about the 445/55R19 tire size

Size geometry

A 445/55R19 tire has a 445mm section width and a 55% aspect ratio, mounted on a 19-inch rim. Sidewall height works out to 244.8mm (9.64") and overall outside diameter is 972.1mm (38.27"). At highway speed the tire completes about 327 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 445/55R19 is unavailable, the closest same-diameter substitutes on the same rim are 435/56R19 and 455/54R19. 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 445/55R19 you can upsize to 455/51R20 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 435/59R18 (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 445/55R19 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 445/55R19

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