Section Width545 mm (21.5")
Aspect Ratio27%
Rim Diameter29"
Overall Diameter1031 mm (40.6")
Sidewall Height147 mm
Circumference3239 mm
545/27R29 — Buy Tires

Everything to know about the 545/27R29 tire size

Size geometry

A 545/27R29 tire has a 545mm section width and a 27% aspect ratio, mounted on a 29-inch rim. Sidewall height works out to 147.2mm (5.79") and overall outside diameter is 1030.9mm (40.59"). At highway speed the tire completes about 309 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 545/27R29 is unavailable, the closest same-diameter substitutes on the same rim are 535/28R29 and 555/27R29. 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 545/27R29 you can upsize to 555/24R30 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 535/30R28 (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 545/27R29 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 545/27R29

tire_size.no_vehicles_found