245/70R17 Tire Size

All You Need to Know About 245/70R17 Tires

245/70R17 means the tire is 245 mm wide, with a 70% aspect ratio and a 17-inch wheel diameter, producing a 30.5-inch overall diameter and a 6.8-inch sidewall height.

The 245/70R17 size sits firmly in the mid-size truck and SUV category, with an overall diameter in the ~30-31 inch range, placing it within the typical sizing band used on body-on-frame platforms.

Where an LT245/70R17 version appears, it uses the same external dimensions but a different construction standard built for higher load capacity and heavier-duty use. Variants like LT245/70R17C indicate a specific load range (C), with reinforced casing and higher pressure capability, placing them in a separate fitment category rather than a direct equivalent to the 245/70R17 standard size.

245/70R17 Size Quick Specs

• Approved rim width range: 6.5-8.0"
• Measuring Rim Width (Ideal): 7.0" 
• Overall diameter: 30.5"
• Width: 245 mm
• Sidewall height: 171.5 mm
• Wheel diameter: 17 in

Note: The calculated overall diameter of 245/70R17 is ≈30.5 inches. Actual mounted diameter may vary by ±0.1-0.3 inches depending on casing construction and tread design.

245/70R17 Common Vehicle Fitment

245/70R17 is used on body-on-frame SUVs, full-size trucks, and full-size vans. Confirmed US-market OEM applications include the Chevrolet Silverado 1500 (2004-2006), Chevrolet Express 1500 (2009-2014), Chevrolet Traverse (2009-2017), GMC Sierra 1500 (select trims), GMC Savana 1500, Ford F-150 (XL, XLT trims, select years), Dodge Durango (2004-2010), Ram 1500/2500/3500 (select trims and years), Jeep Grand Cherokee (select trims), Nissan NV1500/NV2500/NV3500, and Chrysler Aspen (2006-2009).

Across these applications, 245/70R17 functions as a truck and SUV size. Load index and construction type - P-metric vs LT - vary significantly between platforms and must be verified against the vehicle door placard before replacement.

245/70R17 Dimensions in Inches

The 245/70R17 tire size is ≈9.65 inches wide, ≈30.5 inches tall overall, and has a sidewall height of ≈6.75 inches.

The ≈30.5-inch overall diameter translates to a circumference of about ≈95.8 inches, which determines how far the vehicle travels in one full wheel rotation.

245/70R17 in Inches: All Measurements

• Overall diameter: ≈30.5"
• Width: 9.65"
• Sidewall height: 6.75"
• Wheel diameter: 17"
• Circumference: 95.82" (≈95.8")

Most Recommended 245/70R17 Tires

Best tires in 245/70R17 size include:

• 245/70R17 all-terrain tires: Hankook Dynapro AT2 Xtreme RF12, Kumho Road Venture AT52
• Highway tires 245/70R17: Kumho Crugen HT51, Toyo Open Country H/T II
• All-season truck tires 245 70r17: Hankook Dynapro HT RH12, Nokian One HT
• 245/70R17 set of 4 (best price): Ironman Radial A/P, Hercules Terra Trac HPT

Comparison of 245/70R17 With Similar Tire Sizes

245/70R17 sits between smaller crossover-based sizes and larger full-width truck options. Relative to 235/65R17, it adds noticeable height and sidewall, moving into a larger diameter class. Against 265/70R17, overall height remains close, but the section width is reduced, resulting in a narrower stance.

Taken together, these comparisons position 245/70R17 as a midpoint size - larger than entry-level options, yet not as wide as full-size truck configurations.

Difference Between 245/70R17 and 235/65R17 Tire Sizes

The 245/70R17 is both wider and significantly taller than the 235/65R17:

• Width: 245/70R17 is 10 mm wider than 235/65R17
• Overall diameter: 245/70R17 is ≈2.06 inches (≈7.2%) larger than 235/65R17

Because the OD difference between 245/70R17 and 235/65R17 is well beyond the ±3% range, they are not treated as direct replacements and require fitment verification before use, including clearance checks and, in some cases, suspension modifications such as a lift.

Difference Between 245/70R17 and 265/70R17 Tire Sizes

The 265/70R17 increases width while keeping a similar aspect ratio:

• Width: 265/70R17 is 20 mm wider than 245/70R17
• Overall diameter: 265/70R17 is ≈1.10 inches (≈3.6%) larger than 245/70R17

Moving from 245/70R17 to 265/70R17 introduces both a larger diameter and increased width, which can affect clearance at full lock on stock suspension. Because the overall diameter difference exceeds the ±3% range, these sizes are not considered direct replacements.

To understand safe upsizing or downsizing options for the 245/70R17 tire size, refer to the full 3% tire size rule guide.