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Tire size

285/70R17 tire size: dimensions explained

Factory size on the Ford Bronco, Jeep Wrangler (JL), Jeep Gladiator, Ford Ranger, Chevrolet Colorado ZR2. Below are the dimensions calculated from the size marking itself. Your vehicle's correct size, load index and speed rating are on the placard in the driver's door jamb; check it before buying.

MeasurementMetricImperial
Section width285 mm11.22 in
Sidewall height199.5 mm7.85 in
Overall diameter830.8 mm32.71 in
Wheel diameter431.8 mm17 in
Circumference2611 mm102.8 in
Revolutions per mile617

Calculated values: diameter = wheel + 2 × (width × aspect ratio). Real tires vary slightly by brand and model.

Reading the marking

285 is the section width in millimetres, 70 is the sidewall height as a percentage of that width, R means radial construction, and 17 is the wheel diameter in inches. A passenger (P or Euro-metric) tire and an LT tire in the same size are not interchangeable without checking load requirements.

Compare 285/70R17 with another size →

285/70R17 tires at Tire Rack

Highway / touring

TireLoad/speedPrice per tire
Yokohama Geolandar H/T G056
Highway All-Season		E 121/118S$238.62View at Tire Rack
Goodyear Wrangler Workhorse HT
Highway All-Season		E 121/118R$299.99View at Tire Rack

All-terrain

TireLoad/speedPrice per tire
Cooper Discoverer AT3 4S
On-Road All-Terrain		117T$175.39View at Tire Rack
Nitto Nomad Grappler
On-Road All-Terrain		116T$182.64View at Tire Rack

Rugged / mud-terrain

TireLoad/speedPrice per tire
Radar Renegade R/T
Rugged All-Terrain		E 121/118Q$242.08View at Tire Rack
Goodyear Wrangler Territory RT
Rugged All-Terrain		E 121/118Q$257.05View at Tire Rack

Showing the lowest-priced in-stock options in each category from 68 285/70R17 tires in Tire Rack's feed, sorted by price only. We don't rank by commission. Match or exceed the load index and speed rating on your placard.

Affiliate links: if you buy through a Tire Rack link, RightTread may earn a commission through CJ. It doesn't change your price. Prices are Tire Rack's per-tire prices from Tire Rack's product feed as of Nov 7, 2026, 9:19 PM PT. Prices change, so confirm on Tire Rack before you buy. Disclosure

Other sizes