What does 285/70R17 mean?

285/70R17 breaks down as a 285 mm (11.2") section width, a 70% aspect ratio that gives a 7.85" sidewall, and an R17 radial construction for a 17" wheel. Together that works out to an overall diameter of about 32.7 inches.

What size wheel does a 285/70R17 tire fit?

A 285/70R17 tire mounts on a 17-inch diameter wheel. The ideal wheel width depends on the application, and the Tire Geeks team can confirm the correct width for your vehicle at either Sacramento location.

How much do 285/70R17 tires cost at Tire Geeks?

285/70R17 tires start at $79 per set of four installed at Tire Geeks, with mid-range and premium options available. Every set includes mounting, computer balancing, valve stems, and TPMS reset. No-credit-needed financing through Acima is available.

Truck / off-road

285/70R17 Tires in Sacramento

The 285/70R17 is a tall-sidewall size — 7.85" of sidewall over a 17" wheel — that prioritizes comfort and durability. The deep sidewall cushions impacts and shrugs off curbs and potholes far better than a low-profile tire, which makes it a favorite on crossovers, SUVs, and light trucks. Overall diameter is roughly 32.7".

What 285/70R17 Means

Every number on the sidewall describes a real dimension. Here is exactly what the 285/70R17 works out to:

Section width

285 mm (11.2")

Tread width across the tire

Aspect ratio

70%

Sidewall is 70% of the width

Sidewall height

7.85"

Rubber between rim and road

Wheel diameter

17"

Rim size this tire mounts on

Overall diameter

~32.7"

Full height of the tire

Best suited for

Truck / off-road

Typical vehicle category

What this means for your driving

Comfort and impact resistance come first here, with a softer ride and more sidewall flex in hard cornering — ideal for family SUVs and trucks.

Vehicles That Use 285/70R17

These vehicles run the 285/70R17 as a factory size or a common upgrade. Tap any to see its full fitment guide:

Comparable & Alternative Sizes

These sizes keep overall diameter within about 3% of the 285/70R17 (~32.7"), so they stay close on speedometer reading and clearance. Always confirm fitment before swapping— diameter is only part of the story.

285/75R16

~32.8" overall · +0.3% vs current · needs 16" wheels (plus/minus size)

275/60R20

~33.0" overall · +0.9% vs current · needs 20" wheels (plus/minus size)

285/55R20

~32.3" overall · -1.2% vs current · needs 20" wheels (plus/minus size)