Section Width195 mm (7.7")
Aspect Ratio39%
Rim Diameter20"
Overall Diameter660 mm (26.0")
Sidewall Height76 mm
Circumference2074 mm
195/39R20 — Buy Tires

Everything to know about the 195/39R20 tire size

Size geometry

A 195/39R20 tire has a 195mm section width and a 39% aspect ratio, mounted on a 20-inch rim. Sidewall height works out to 76.0mm (2.99") and overall outside diameter is 660.1mm (25.99"). At highway speed the tire completes about 482 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 195/39R20 is unavailable, the closest same-diameter substitutes on the same rim are 185/41R20 and 205/37R20. 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 195/39R20 you can upsize to 205/31R21 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 185/48R19 (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 195/39R20 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 195/39R20

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