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Tire size · 17-inch wheel · about 32.7x11.2R17

285/70R17 tire size

Overall diameter, nominal32.7 in

Estimate ±831 mm

A 285/70R17 tire is 32.7 in (831 mm) tall and 11.2 in (285 mm) wide on a 17-inch wheel, with a 7.9 in sidewall, and turns about 617 times a mile.

Stock on the Chevrolet Colorado (2024–2026), Ford Bronco (2021–2026), Ford Ranger (2024–2026) and 3 more, per their makers’ documents.

Width
11.2 in
Sidewall
7.9 in
Wheel
17 in
Revs per mile
617

01 / Dimensions

285/70R17 in inches and millimeters

What the size code works out to. A real tire of the size measures within about 1.5% of it, by brand, tread, wheel width and pressure.

285/70R17

Estimate ±
Overall diameter
32.7 in 831 mm32.2 to 33.2 in for real tires
Section width
11.2 in 285 mm
Sidewall height
7.9 in 200 mm
Wheel diameter
17 in 432 mm
Circumference
102.8 in 2,610 mm
Revolutions per mile
617 383 per km607 to 626

02 / Stock on

Vehicles that leave the factory on 285/70R17

Which configurations run it in which model years, printed the way each maker prints the size, and how it compares with the vehicle’s other stock sizes. A speedometer set for one of those reads off by the amount shown when you fit 285/70R17 instead.

  • Chevrolet ColoradoMaker
    • 2025–2026 · ZR2printed P285/70R17
    • 2024 · ZR2printed LT285/70R17

    Chevrolet Colorado model years on 285/70R17:

    Its other stock sizes

    • 315/70R17 (2024 · ZR2 Bison). 285/70R17 is 1.7 in shorter: with a speedometer set for 315/70R17 it reads 5.1% high, 57.1 mph at an indicated 60.
    • 265/65R18 (2025–2026 · Z71, Trail Boss). 285/70R17 is 1.1 in taller: with a speedometer set for 265/65R18 it reads 3.5% low, 62.2 mph at an indicated 60.
    • 255/55R20 (2025–2026 · Z71 with the Z71 with P255/55R20 all-season tires, with a package). 285/70R17 is 1.7 in taller: with a speedometer set for 255/55R20 it reads 5.1% low, 63.2 mph at an indicated 60.
    • 255/65R17 (2025–2026 · WT). 285/70R17 is 2.7 in taller: with a speedometer set for 255/65R17 it reads 8.1% low, 65.3 mph at an indicated 60.
  • Ford BroncoMaker
    • 2023–2026 · Badlandsprinted LT285/70R17
    • 2021–2022 · Badlandsprinted 285/70R17

    Ford Bronco model years on 285/70R17:

    Its other stock sizes

    • 37x12.50R17 (2022–2026 · Raptor). 285/70R17 is 4.3 in shorter: with a speedometer set for 37x12.50R17 it reads 13.1% high, 53.0 mph at an indicated 60.
    • 315/70R17 (2021–2026 · Heritage Edition, Stroppe Edition; Base, Outer Banks, Badlands with the Sasquatch Package (765); Big Bend with the Black Diamond Package (51D) + Sasquatch Package (765)). 285/70R17 is 1.7 in shorter: with a speedometer set for 315/70R17 it reads 5.1% high, 57.1 mph at an indicated 60.
    • 255/75R17 (2021–2026 · Big Bend). 285/70R17 is 0.6 in taller: with a speedometer set for 255/75R17 it reads 2.0% low, 61.2 mph at an indicated 60.
    • 255/70R18 (2021–2026 · Outer Banks). 285/70R17 is 0.7 in taller: with a speedometer set for 255/70R18 it reads 2.0% low, 61.2 mph at an indicated 60.
    • 265/70R17 (2021–2026 · Big Bend with the Black Diamond Package (51D), Free Wheeling Package (51F) or Black Appearance Package (51E); Outer Banks with the Black Appearance Package (51E)). 285/70R17 is 1.1 in taller: with a speedometer set for 265/70R17 it reads 3.4% low, 62.1 mph at an indicated 60.
    • 255/70R16 (2021–2023 and 2025–2026 · Base). 285/70R17 is 2.7 in taller: with a speedometer set for 255/70R16 it reads 8.1% low, 65.3 mph at an indicated 60.
  • Ford RangerMaker
    • 2024–2026 · Raptorprinted LT285/70R17

    Ford Ranger model years on 285/70R17:

    Its other stock sizes

    • 255/70R17 (2024–2026 · XL; XLT). 285/70R17 is 1.7 in taller: with a speedometer set for 255/70R17 it reads 5.1% low, 63.2 mph at an indicated 60.
    • 255/65R18 (2024–2026 · Lariat). 285/70R17 is 1.7 in taller: with a speedometer set for 255/65R18 it reads 5.1% low, 63.2 mph at an indicated 60.
  • Jeep GladiatorMaker
    • 2020–2026 · Mojave, Rubicon; Mojave, Rubicon with the Optional mud-terrain tires (same size as the standard tires)printed LT285/70R17C

    Jeep Gladiator model years on 285/70R17:

    Its other stock sizes

    • 315/70R17 (2026 · Sport with the Tire option LT315/70R17C, with a package). 285/70R17 is 1.7 in shorter: with a speedometer set for 315/70R17 it reads 5.1% high, 57.1 mph at an indicated 60.
    • 255/75R17 (2024–2026 · Willys; Sport with the Tire option LT255/75R17C; Willys with the Optional mud-terrain tires (same size as the standard tires); Rubicon with the Tire option LT255/75R17C). 285/70R17 is 0.6 in taller: with a speedometer set for 255/75R17 it reads 2.0% low, 61.2 mph at an indicated 60.
    • 255/70R18 (2020–2023 and 2026 · Sport with the Tire option 255/70R18). 285/70R17 is 0.7 in taller: with a speedometer set for 255/70R18 it reads 2.0% low, 61.2 mph at an indicated 60.
    • 245/75R17 (2020–2026 · Sport, Sport S). 285/70R17 is 1.2 in taller: with a speedometer set for 245/75R17 it reads 3.8% low, 62.4 mph at an indicated 60.
  • Jeep WranglerMaker
    • 2026 · Rubicon; Rubicon with the Beadlock-capable 17 x 8 in. wheelsprinted LT285/70R17C
    • 2025 · Willys, Rubiconprinted LT285/70R17C
    • 2024 · Willys, Rubicon; Sport with the LT285/70R17C tiresprinted LT285/70R17C
    • 2023 · Rubicon 2.0L turbo I-4 gasoline/3.6L Pentastar V6 gasoline/3.0L diesel, Rubicon 392; Rubicon Four-door 2.0L turbo I-4 4xe plug-in hybridprinted LT285/70R17C
    • 2022 · Rubicon, Rubicon 392printed LT285/70R17C
    • 2021 · Rubicon 2.0L turbo I-4 gasoline/3.6L Pentastar V6 gasoline/3.0L diesel; Rubicon Four-door 2.0L turbo I-4 4xe plug-in hybrid; Rubicon 392printed LT285/70R17C
    • 2019–2020 · Rubicon; Sport with the LT285/70R17 tires; Sahara with the LT285/70R17 tires; Rubicon with the LT285/70R17 tiresprinted LT285/70R17, LT285/70R17C
    • 2018 · Rubicon 8-speed automatic/D478 6-speed manual; Sport 8-speed automatic/D478 6-speed manual with the LT285/70R17 tires; Sahara Four-door 8-speed automatic/D478 6-speed manual with the LT285/70R17 tires; Rubicon 8-speed automatic/D478 6-speed manual with the LT285/70R17 tiresprinted LT285/70R17, LT285/70R17C

    Jeep Wrangler model years on 285/70R17:

    Its other stock sizes

    • 315/70R17 (2021–2026 · Moab 392; Sport with the LT315/70R17C tires; Rubicon with the Xtreme 35 Package or LT315/70R17C tires). 285/70R17 is 1.7 in shorter: with a speedometer set for 315/70R17 it reads 5.1% high, 57.1 mph at an indicated 60.
    • 285/75R17 (2024–2026 · Sport with the LT285/75R17C tires, with a package). 285/70R17 is 1.1 in shorter: with a speedometer set for 285/75R17 it reads 3.4% high, 58.0 mph at an indicated 60.
    • 255/75R17 (2021–2025 · Rubicon with the LT255/75R17C tires). 285/70R17 is 0.6 in taller: with a speedometer set for 255/75R17 it reads 2.0% low, 61.2 mph at an indicated 60.
    • 255/70R18 (2018–2026 · Sahara; Sahara with the All-terrain tires (same size as the standard tires)). 285/70R17 is 0.7 in taller: with a speedometer set for 255/70R18 it reads 2.0% low, 61.2 mph at an indicated 60.
    • 255/60R20 (2024–2025 · Sport S). 285/70R17 is 0.7 in taller: with a speedometer set for 255/60R20 it reads 2.0% low, 61.2 mph at an indicated 60.
    • 275/55R20 (2021–2025 · Sahara 2.0L turbo I-4 4xe plug-in hybrid; High Altitude). 285/70R17 is 0.8 in taller: with a speedometer set for 275/55R20 it reads 2.4% low, 61.5 mph at an indicated 60.
    • 245/75R17 (2018–2026 · Sport; Sport with the All-terrain tires (same size as the standard tires); Sport with the 245/75R17 tires). 285/70R17 is 1.2 in taller: with a speedometer set for 245/75R17 it reads 3.8% low, 62.4 mph at an indicated 60.
  • Ram 2500Maker
    • 2026 · Tradesman 4x4, Power Wagon with the Tire option LT285/70R17Dprinted LT285/70R17D
    • 2013 · Power Wagonprinted LT285/70R17D
    • 2011 · Power Wagonprinted LT285/70R17D

    Ram 2500 model years on 285/70R17:

    Its other stock sizes

    • 285/60R20 (2026 · Tradesman, Big Horn, Laramie, Limited, Power Wagon with the Tire option LT285/60R20E, with a package). 285/70R17 is 0.8 in shorter: with a speedometer set for 285/60R20 it reads 2.3% high, 58.6 mph at an indicated 60.
    • 275/70R18 (2026 · Tradesman, Big Horn, Laramie, Limited with the Tire option LT275/70R18E, with a package). 285/70R17 is 0.4 in shorter: with a speedometer set for 275/70R18 it reads 1.4% high, 59.2 mph at an indicated 60.
    • 265/70R17 (2011 and 2013 · Big Horn, Laramie, SLT, Outdoorsman, Lone Star, Laramie Longhorn). 285/70R17 is 1.1 in taller: with a speedometer set for 265/70R17 it reads 3.4% low, 62.1 mph at an indicated 60.
    • 245/70R17 (2011, 2013 and 2026 · Tradesman with the Tire option LT245/70R17E). 285/70R17 is 2.2 in taller: with a speedometer set for 245/70R17 it reads 6.7% low, 64.3 mph at an indicated 60.

Documents last checked . How we read them and what the marks mean: how we source the numbers. A figure doesn’t match its document? Report a wrong number.

03 / Nearby sizes

Sizes either side of 285/70R17

The nearest common upsizes and the next sizes down on the same wheel, from the stock sizes we cover and the sizes owners usually step up to, and sizes about as tall on another wheel.

Nearest sizes up

Nearest sizes up, compared with 285/70R17
SizeTallinHeightvs 285/70R17Widthvs 285/70R17At an indicated 60true mphCompare
285/75R1733.8+1.1 in±0.0 in62.161.1 to 63.0Compare →
315/70R1734.4+1.7 in+1.2 in63.062.1 to 64.0Compare →
35x12.50R1735.0+2.3 in+1.3 in64.263.2 to 65.2Compare →

Next sizes down

Next sizes down, compared with 285/70R17
SizeTallinHeightvs 285/70R17Widthvs 285/70R17At an indicated 60true mphCompare
275/70R1732.2−0.6 in−0.4 in59.058.1 to 59.9Compare →
255/75R1732.1−0.6 in−1.2 in58.857.9 to 59.7Compare →

About as tall, other wheels

About as tall, other wheels, compared with 285/70R17
SizeTallinHeightvs 285/70R17Widthvs 285/70R17At an indicated 60true mphCompare
305/45R2232.8+0.1 in+0.8 in60.259.3 to 61.1Compare →
265/70R1832.6−0.1 in−0.8 in59.858.9 to 60.7Compare →
275/50R2232.8+0.1 in−0.4 in60.259.3 to 61.1Compare →
225/95R1632.8+0.1 in−2.4 in60.259.3 to 61.1Compare →

04 / Next

Compare it with your size

Tire size calculator285/70R17 against 285/75R17, or any two sizes: height, speedometer and gearing.Compare sizesTire sizes by vehicleEvery stock size on the trucks and SUVs we cover.Browse sizesChevrolet Colorado tiresStock tires and wheels by trim, and what bigger tires change on the Chevrolet Colorado.See the tiresFord Bronco tiresStock tires and wheels by trim, and what bigger tires change on the Ford Bronco.See the tires

05 / FAQ

Questions people ask

What is 285/70R17 in inches?

About 32.7x11.2R17: 32.7 in tall and 11.2 in wide on a 17-inch wheel.

Which vehicles come with 285/70R17 tires?

In our data: Chevrolet Colorado (2024–2026), Ford Bronco (2021–2026), Ford Ranger (2024–2026), Jeep Gladiator (2020–2026), Jeep Wrangler (2018–2026) and Ram 2500 (2011, 2013 and 2026).

How does 285/70R17 compare with the Jeep Wrangler’s other stock sizes?

285/70R17 is 1.7 in shorter: with a speedometer set for 315/70R17 it reads 5.1% high, 57.1 mph at an indicated 60. 285/70R17 is 1.1 in shorter: with a speedometer set for 285/75R17 it reads 3.4% high, 58.0 mph at an indicated 60. 285/70R17 is 0.6 in taller: with a speedometer set for 255/75R17 it reads 2.0% low, 61.2 mph at an indicated 60.

What is the next size up from 285/70R17?

285/75R17: about 1.1 in taller. On a speedometer set for 285/70R17 it reads 3.3% low (62.1 mph at an indicated 60).