225/60R18 tires have a section width of 225 millimetre (mm), aspect ratio of 60%, radial construction, and 18 inch wheel diameter. Before buying tires sized 225/60R18, converting 225/60R18 size in inches, comparing it with similar tire sizes like 245/60R18, knowing what vehicle fit and what’s the recommended PSI helps drivers shop for the right set for their vehicles.
The 225/60R18 is often the standard factory size fitment and very popular replacement size for:
For a 225/60R18 tire, the recommended pressure almost always falls between 32 and 35 PSI (pounds per square inch), while the final PSI depends on your specific vehicle. Because the 225/60R18 tire size is standard on many popular SUVs, here is a breakdown of the typical manufacturer recommendations:
225/60R18 PSI Recommendations per Vehicle
Vehicle Model | Recommended Front PSI | Recommended Rear PSI |
Toyota RAV4 | 33 PSI | 33 PSI |
Subaru Outback | 35 PSI | 33 PSI |
Honda CR-V | 33 PSI | 30 PSI |
Mazda CX-5 | 35 PSI | 35 PSI |
Ford Escape | 35 PSI | 35 PSI |
225/60R18 all-season tires: Continental TrueContact Tour 54, Yokohama Avid Ascend LX
225/60R18 100H tires: Hankook Dynapro HPX, Continental CrossContact LX25
225/60R18 all-terrain tires: Nitto Nomad Grappler, Falken Wildpeak A/T Trail
The 225/60R18 tire features a section width of 8.86 inches and an aspect ratio of 60%. This ratio results in a sidewall height of 5.31 inches. Mounted on an 18-inch wheel, the tire has an overall diameter of approximately 28.63 inches and a circumference of 88.94 inches.
225/60R18 tire size in inches can be represented as 28.6" × 8.9" R18
225/60R18 tire size in millimeters and inches are presented in the below table:
225/60R18 Tire Size Dimensions | 225/60R18 Tire Size Dimensions in Inches (") | Formula to Convert 225/60R18 Tire Size in Inches (") |
225 mm (section width) | ≈ 8.86” | 225 ÷ 25.4 = 8.86 |
135 mm (sidewall height) | ≈ 5.31” | (225 × 0.60) ÷ 25.4 = 5.31 |
18 (rim diameter) | 18” | Rim diameter = 18 |
727 mm (overall diameter) | ≈ 28.63” | (2 × 135 ÷ 25.4) + 18 = 28.63 |
2284 mm (circumference) | ≈ 89.94” | 28.63 × 3.1416 = 89.94 |
364 mm (radius) | ≈ 14.31” | 28.63 ÷ 2 = 14.31 |
The 225/60R18 rim width range is 6.0" to 8.0", whereas the 6.5 is the "ideal" width used by manufacturers to measure the tire's specifications
Compare 225/60R18 with other tire sizes, such as 245/60R18, to learn the key differences between them and make the right choice when buying new tires.
The main difference between 225/60R18 and 245/60R18 is the section width. 225/60R18 is 20 mm (≈0.79 inches) narrower than 245/60R18.
The tire dimensions or measurement difference between 225/60R18 vs 245/60R18 is shown in the below table:
Tire Dimensions | 225/60R18 tires dimensions in millimetre (mm) and inches (") | 245/60R18 tires dimensions in millimetre (mm) and inches (") | Difference b/w 225/60R18 and 245/60R18 in millimetre (mm) and inches (") | Percentage ≈ difference b/w 225/60R18 and 245/60R18 |
Section Width | 225 mm (8.86") | 245. mm (9.65") | 20mm (0.79") | 8.89 % |
Sidewall Height | 135mm (5.31") | 147. mm (5.79") | 12mm (0.47") | 8.89 % |
Overall Diameter | 727.2 mm (28.63") | 751.2 mm (29.57") | 24 mm (0.94") | 3.3 % |
Circumference | 2284.6 mm (89.94") | 2360 mm (92.91") | 75.4 mm (2.97") | 3.3 % |
Radius | 363.6 mm (14.31") | 375.6 mm (14.79") | 12mm (0.47") | 3.3 % |
Rim Diameter | 457.2 mm (18.00") | 457.2 mm (18.00") | - | - |
Rim width range | 6.0’’- 8.0’’ | 7.0’’ - 8.5’’ | - | - |
Yes, you can physically mount 245/60R18 in place of 225/60R18, but it comes with notable trade-offs. The 245/60R18 is approximately 24 mm taller and 20 mm wider, which increases ground clearance but creates a 3.3% speedometer error (meaning you'll be traveling faster than your gauge indicates). While fitment is usually acceptable, the extra width and height may cause rubbing on full steering turns or over large bumps. Furthermore, ensure your rim width can support the wider 245mm profile, and be aware that the size change may slightly affect the calibration of ABS and traction control systems.
225/60R18 tires have a section width of 225 millimetre (mm), aspect ratio of 60%, radial construction, and 18 inch wheel diameter. Before buying tires sized 225/60R18, converting 225/60R18 size in inches, comparing it with similar tire sizes like 245/60R18, knowing what vehicle fit and what’s the recommended PSI helps drivers shop for the right set for their vehicles.
The 225/60R18 is often the standard factory size fitment and very popular replacement size for:
For a 225/60R18 tire, the recommended pressure almost always falls between 32 and 35 PSI (pounds per square inch), while the final PSI depends on your specific vehicle. Because the 225/60R18 tire size is standard on many popular SUVs, here is a breakdown of the typical manufacturer recommendations:
225/60R18 PSI Recommendations per Vehicle
Vehicle Model | Recommended Front PSI | Recommended Rear PSI |
Toyota RAV4 | 33 PSI | 33 PSI |
Subaru Outback | 35 PSI | 33 PSI |
Honda CR-V | 33 PSI | 30 PSI |
Mazda CX-5 | 35 PSI | 35 PSI |
Ford Escape | 35 PSI | 35 PSI |
225/60R18 all-season tires: Continental TrueContact Tour 54, Yokohama Avid Ascend LX
225/60R18 100H tires: Hankook Dynapro HPX, Continental CrossContact LX25
225/60R18 all-terrain tires: Nitto Nomad Grappler, Falken Wildpeak A/T Trail
The 225/60R18 tire features a section width of 8.86 inches and an aspect ratio of 60%. This ratio results in a sidewall height of 5.31 inches. Mounted on an 18-inch wheel, the tire has an overall diameter of approximately 28.63 inches and a circumference of 88.94 inches.
225/60R18 tire size in inches can be represented as 28.6" × 8.9" R18
225/60R18 tire size in millimeters and inches are presented in the below table:
225/60R18 Tire Size Dimensions | 225/60R18 Tire Size Dimensions in Inches (") | Formula to Convert 225/60R18 Tire Size in Inches (") |
225 mm (section width) | ≈ 8.86” | 225 ÷ 25.4 = 8.86 |
135 mm (sidewall height) | ≈ 5.31” | (225 × 0.60) ÷ 25.4 = 5.31 |
18 (rim diameter) | 18” | Rim diameter = 18 |
727 mm (overall diameter) | ≈ 28.63” | (2 × 135 ÷ 25.4) + 18 = 28.63 |
2284 mm (circumference) | ≈ 89.94” | 28.63 × 3.1416 = 89.94 |
364 mm (radius) | ≈ 14.31” | 28.63 ÷ 2 = 14.31 |
The 225/60R18 rim width range is 6.0" to 8.0", whereas the 6.5 is the "ideal" width used by manufacturers to measure the tire's specifications
Compare 225/60R18 with other tire sizes, such as 245/60R18, to learn the key differences between them and make the right choice when buying new tires.
The main difference between 225/60R18 and 245/60R18 is the section width. 225/60R18 is 20 mm (≈0.79 inches) narrower than 245/60R18.
The tire dimensions or measurement difference between 225/60R18 vs 245/60R18 is shown in the below table:
Tire Dimensions | 225/60R18 tires dimensions in millimetre (mm) and inches (") | 245/60R18 tires dimensions in millimetre (mm) and inches (") | Difference b/w 225/60R18 and 245/60R18 in millimetre (mm) and inches (") | Percentage ≈ difference b/w 225/60R18 and 245/60R18 |
Section Width | 225 mm (8.86") | 245. mm (9.65") | 20mm (0.79") | 8.89 % |
Sidewall Height | 135mm (5.31") | 147. mm (5.79") | 12mm (0.47") | 8.89 % |
Overall Diameter | 727.2 mm (28.63") | 751.2 mm (29.57") | 24 mm (0.94") | 3.3 % |
Circumference | 2284.6 mm (89.94") | 2360 mm (92.91") | 75.4 mm (2.97") | 3.3 % |
Radius | 363.6 mm (14.31") | 375.6 mm (14.79") | 12mm (0.47") | 3.3 % |
Rim Diameter | 457.2 mm (18.00") | 457.2 mm (18.00") | - | - |
Rim width range | 6.0’’- 8.0’’ | 7.0’’ - 8.5’’ | - | - |
Yes, you can physically mount 245/60R18 in place of 225/60R18, but it comes with notable trade-offs. The 245/60R18 is approximately 24 mm taller and 20 mm wider, which increases ground clearance but creates a 3.3% speedometer error (meaning you'll be traveling faster than your gauge indicates). While fitment is usually acceptable, the extra width and height may cause rubbing on full steering turns or over large bumps. Furthermore, ensure your rim width can support the wider 245mm profile, and be aware that the size change may slightly affect the calibration of ABS and traction control systems.