245/60R18 Tire Size

All You Need to Know About 245/60R18 Tires

245/60R18 tires have a section width of 245 millimeters (mm), an aspect ratio of 60%, radial construction, and an 18-inch wheel diameter. The 245/60R18 tire size has a calculated overall diameter of 29.6 inches and fits within a 7.0’’-8.5’’rim width range, making it a common fitment for midsize crossovers and light SUVs.

245/60R18 Quick Specs

• Overall diameter: ≈29.6 in
• Sidewall height: ≈147 mm
• Section width: 245 mm
• Rim width range: 7.0-8.5 in
• Wheel diameter: 18 in

Note: The calculated overall diameter of 245/60R18 tires is ≈29.6 inches. Actual mounted diameter may vary slightly (±0.1–0.3 inches) depending on manufacturer, tread design, and load rating.

Common Vehicle Fitments for 245/60R18

• Acura MDX (2014–2021)
• Ford Edge (2006–2024)
• Ford Explorer (2010–2019)
• Ford Everest / Endeavour
• Chrysler Pacifica (2016–2026)
• Toyota Highlander (select trims, 2014–2019)
• GMC Envoy (2002–2009)

Dimensions of a 245/60R18 Tire in Inches

A 245/60R18 tire's overall diameter is 29.6 inches, with a circumference of 92.91 inches. It's 9.65 inches wide, has a 5.79-inch sidewall height, and fits an 18-inch wheel. 

245/60R18 in Inches: All Measurements

• OD / Total height: ≈29.6″
• Sidewall height: ≈5.79″
• Section width: ≈9.65″
• Circumference: ≈92.91″

In inch-format notation, the size can be expressed as 29.6″ × 9.65″ R18.

Most Recommended 245/60R18 Tires 

Top 5 Tire Recommendations for 245/60R18 (by conditions) include:

Comparison of 245/60R18 With Similar Tire Sizes

Comparing 245/60R18 with similar tire sizes like 235/65R18 and 255/55R18 shows the key differences between these tire sizes and helps buyers choose the right tires to purchase.

What Is the Difference Between 245/60R18 vs 235/65R18 Tire Sizes?

The main differences between 245/60R18 and 235/65R18 come down to width, sidewall height, and overall diameter. The 245/60R18 is 10 mm wider but has a ≈5.75 mm shorter sidewall and an ≈11.5 mm smaller overall diameter than the 235/65R18, meaning the 235/65R18 sits slightly taller overall.

Can I use 235/65R18 instead of 245/60R18?  

Yes, you can generally use the 235/65R18 tire instead of the 245/60R18. The switch is acceptable as the difference (about 1.5%) in overall wheel diameter falls within the acceptable 3% range for changing tires. Yet, ensure clearance before switching and expect a slight change in comfort due to the narrower 235/65R18 tread width. 

What Is the Difference Between 245/60R18 vs 255/55R18 Tire Sizes?

The main differences between 245/60R18 and 255/55R18 come down to width, sidewall height, and overall diameter. In practical terms, the 245/60R18 is 10 mm narrower, has a 6.75 mm taller sidewall, and a ≈0.53″ (≈ 1.83 %) larger overall diameter than the 255/55R18.

Can I use 255/55R18 instead of 245/60R18?

Yes, you can use 255/55R18 instead of 245/60R18, but not before ensuring your car specs for fender clearance and what the manufacturer recommends as a well-fitting tire size. The speedometer difference is usually negligible, only about 1.8%, after switching to 255/55R18 instead of 245/60R18.