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235/50R18 Tire Size
Shop 235/50R18 tires in stock with confirmed size specs, validated diameter in inches, approved rim width range, and verified vehicle fitment before purchase.
Browse and filter 235/50R18 tires from Continental, Pirelli, Yokohama and more to quickly find your ideal fit.
All You Need to Know About 235/50R18 Tires
235/50R18 tires have a section width of 235 millimeters (mm), an aspect ratio of 50%, radial construction, and an 18-inch wheel diameter. The 235/50R18 tire size has an overall diameter of 27.3 inches and fits within a 6.5’’-8.5’’ rim width range, making it a common fitment for midsize sedans and compact-to-midsize crossovers.
235/50R18 Size Quick Specs
- Overall diameter: 27.3 in
- Sidewall height: 117.5 mm
- Section width: 235 mm
- Rim width range: 6.5-8.5 in
- Wheel diameter: 18 in
Note: The calculated overall diameter of 235/50R18 tires is 27.3 inches. Actual mounted diameter may vary slightly (±0.1-0.3 inches) depending on manufacturer, tread design, and load rating.
Common Vehicle Fitments for 235/50R18 Tire Size
Jeep Grand Cherokee (WK2, 2011–2021) | Standard 18" fitment on select trims |
Dodge Durango | 18" fitment on mid-range trims |
Chrysler 300 / Dodge Charger | Select 18" configurations |
Cadillac SRX (2010–2016) | 18" OEM fitment |
Lincoln MKX / Nautilus | Select 18" trims |
Ford Edge | Certain 18" trim levels |
What Are The Dimensions of 235/50R18 Tires in Inches?
In inches, the 235/50R18 tire size measures 27.3 '' in overall diameter, 9.3 '' in width, and 85.6″ in circumference.
235/50R18 in Inches: All Measurements
• Total height: 27.3″
• Section width: 9.3″
• Sidewall height: 4.6″
• Circumference: 85.6″
• Wheel diameter: 18″
235/50R18 In inch format can be represented as:
27.3″ × 9.3″ R18
Most Recommended 235/50R18 Tires
Drivers choosing 235/50R18 tires often aim for a refined on-road feel with dependable grip and controlled handling that suits both urban driving and longer highway trips. Top 5 Tire Recommendations for 235/50R18 (by conditions) include:
Comparison of 235/50R18 With Similar Tire Sizes
Compare 235/50R18 with other tire sizes, such as 235/55R18 and 225/50R18, to learn the key differences between them and make the right choice when buying new tires.
What Is the Difference Between 235/50R18 vs 235/55R18 Tire Sizes?
The main difference between 235/50R18 and 235/55R18 is the sidewall height due to the 5% difference in aspect ratio. The 235/50R18 tire has a sidewall height of 50% of its width (235), compared to 55% for the 235/55R18, meaning that the 235/50R18 sidewall is ≈11 mm (≈0.46") shorter than the 235/55R18 sidewall, which results in a ≈23 mm (≈0.93") smaller overall diameter of the 235/50R18 compared to 235/55R18 tire size.
The tire dimensions or measurement difference between 235/50R18 vs 235/55R18 is provided in the below table.
Tire Dimensions | 235/50R18 tires dimensions in millimeters (mm) and inches (") | 235/55R18 tires dimensions in millimeters (mm) and inches (") | Difference b/w 235/50R18 and 235/55R18 in millimeters (mm) and inches (") | Percentage ≈ difference b/w 235/50R18 and 235/55R18 |
Section Width | 235 mm (≈ 9.25") | 235 mm (≈ 9.25") | 0 | 0 |
Sidewall Height | 118 mm (≈ 4.63") | 129 mm (≈ 5.09") | 11.8 mm (≈ 0.46") | ≈ 9.1% |
Overall Diameter | 693 mm (≈ 27.3" rounded from 27.26'') | 716 mm (≈ 28.18") | 23.5 mm (≈ 0.93") | ≈ 3.3% |
Circumference | 2174 mm (≈ 85.6") | 2248 mm (≈ 88.52") | 73 mm (≈ 2.91") | ≈ 3.3% |
Radius | 346 mm (≈ 13.63") | 358 mm (≈ 14.09") | 11.8 mm (≈ 0.46") | ≈ 3.3% |
Rim Diameter | 457.2 mm (18.00") | 457.2 mm (18.00") | - | |
Rim Width Range | 6.5’’-8.5’’ | 6.5"-8.5" | - | - |
What Is the Difference Between 235/50R18 vs 225/50R18?
The key difference between 235/50R18 and 225/50R18 sizes is the tire tread width, whereas the 235/50R18 has a 10 mm (≈ 0.4’’) wider footprint compared to 225/50R18, often resulting in better grip.
The tire dimensions or measurement difference between 235/50R18 vs 225/50R18 is provided in the below table.
Tire Dimensions | 235/50R18 tires dimensions in millimetre (mm) and inches (") | 225/50R18 tires dimensions in millimetre (mm) and inches (") | Difference b/w 235/50R18 and 225/50R18 in millimetre (mm) and inches (") | Percentage ≈ difference b/w 235/50R18 and 225/50R18 |
Section Width | 235 mm (≈ 9.25") | 225 mm (≈ 8.86") | 10 mm (≈ 0.39") | ≈ 4.3% |
Sidewall Height | 118 mm (≈ 4.63") | 113 mm (≈ 4.45") | 5 mm (≈ 0.18") | ≈ 4.3% |
Overall Diameter | 693 mm (≈ 27.3" rounded from 27.26) | 679 mm (≈ 26.75") | 14 mm (≈ 0.55") | ≈ 2.0% |
Circumference | 2174 mm (≈ 85.6") | 2134 mm (≈ 84.02") | 40 mm (≈ 1.59") | ≈ 1.9% |
Radius | 346 mm (≈ 13.63") | 340 mm (≈ 13.38") | 6 mm (≈ 0.24") | ≈ 1.7% |
Rim Diameter | 457.2 mm (18.00") | 457.2 mm (18.00") | - | - |
Rim Width Range | 6.5’’-8.5’’ | 6.0’’-8.0’’ | - | - |
Can I use 225/50R18 instead of 235/50R18?
Yes, you can generally switch from 235/50R18 to 225/50R18, with only minor speedometer changes and some less grip, but potentially better fuel efficiency, even though the difference is barely noticeable; also, ensure the load rating of the narrower 225/50R18 fits vehicle requirements to avoid excessive wear and overloading damage on suspension.
For guidance on safe upsizing or downsizing within acceptable engineering limits, see our dedicated guide: How Much Can You Change Tire Size Safely? 3% Rule, Upsizing Limits, and Fitment Guide.
All You Need to Know About 235/50R18 Tires
235/50R18 tires have a section width of 235 millimeters (mm), an aspect ratio of 50%, radial construction, and an 18-inch wheel diameter. The 235/50R18 tire size has an overall diameter of 27.3 inches and fits within a 6.5’’-8.5’’ rim width range, making it a common fitment for midsize sedans and compact-to-midsize crossovers.
235/50R18 Size Quick Specs
- Overall diameter: 27.3 in
- Sidewall height: 117.5 mm
- Section width: 235 mm
- Rim width range: 6.5-8.5 in
- Wheel diameter: 18 in
Note: The calculated overall diameter of 235/50R18 tires is 27.3 inches. Actual mounted diameter may vary slightly (±0.1-0.3 inches) depending on manufacturer, tread design, and load rating.
Common Vehicle Fitments for 235/50R18 Tire Size
Jeep Grand Cherokee (WK2, 2011–2021) | Standard 18" fitment on select trims |
Dodge Durango | 18" fitment on mid-range trims |
Chrysler 300 / Dodge Charger | Select 18" configurations |
Cadillac SRX (2010–2016) | 18" OEM fitment |
Lincoln MKX / Nautilus | Select 18" trims |
Ford Edge | Certain 18" trim levels |
What Are The Dimensions of 235/50R18 Tires in Inches?
In inches, the 235/50R18 tire size measures 27.3 '' in overall diameter, 9.3 '' in width, and 85.6″ in circumference.
235/50R18 in Inches: All Measurements
• Total height: 27.3″
• Section width: 9.3″
• Sidewall height: 4.6″
• Circumference: 85.6″
• Wheel diameter: 18″
235/50R18 In inch format can be represented as:
27.3″ × 9.3″ R18
Most Recommended 235/50R18 Tires
Drivers choosing 235/50R18 tires often aim for a refined on-road feel with dependable grip and controlled handling that suits both urban driving and longer highway trips. Top 5 Tire Recommendations for 235/50R18 (by conditions) include:
Comparison of 235/50R18 With Similar Tire Sizes
Compare 235/50R18 with other tire sizes, such as 235/55R18 and 225/50R18, to learn the key differences between them and make the right choice when buying new tires.
What Is the Difference Between 235/50R18 vs 235/55R18 Tire Sizes?
The main difference between 235/50R18 and 235/55R18 is the sidewall height due to the 5% difference in aspect ratio. The 235/50R18 tire has a sidewall height of 50% of its width (235), compared to 55% for the 235/55R18, meaning that the 235/50R18 sidewall is ≈11 mm (≈0.46") shorter than the 235/55R18 sidewall, which results in a ≈23 mm (≈0.93") smaller overall diameter of the 235/50R18 compared to 235/55R18 tire size.
The tire dimensions or measurement difference between 235/50R18 vs 235/55R18 is provided in the below table.
Tire Dimensions | 235/50R18 tires dimensions in millimeters (mm) and inches (") | 235/55R18 tires dimensions in millimeters (mm) and inches (") | Difference b/w 235/50R18 and 235/55R18 in millimeters (mm) and inches (") | Percentage ≈ difference b/w 235/50R18 and 235/55R18 |
Section Width | 235 mm (≈ 9.25") | 235 mm (≈ 9.25") | 0 | 0 |
Sidewall Height | 118 mm (≈ 4.63") | 129 mm (≈ 5.09") | 11.8 mm (≈ 0.46") | ≈ 9.1% |
Overall Diameter | 693 mm (≈ 27.3" rounded from 27.26'') | 716 mm (≈ 28.18") | 23.5 mm (≈ 0.93") | ≈ 3.3% |
Circumference | 2174 mm (≈ 85.6") | 2248 mm (≈ 88.52") | 73 mm (≈ 2.91") | ≈ 3.3% |
Radius | 346 mm (≈ 13.63") | 358 mm (≈ 14.09") | 11.8 mm (≈ 0.46") | ≈ 3.3% |
Rim Diameter | 457.2 mm (18.00") | 457.2 mm (18.00") | - | |
Rim Width Range | 6.5’’-8.5’’ | 6.5"-8.5" | - | - |
What Is the Difference Between 235/50R18 vs 225/50R18?
The key difference between 235/50R18 and 225/50R18 sizes is the tire tread width, whereas the 235/50R18 has a 10 mm (≈ 0.4’’) wider footprint compared to 225/50R18, often resulting in better grip.
The tire dimensions or measurement difference between 235/50R18 vs 225/50R18 is provided in the below table.
Tire Dimensions | 235/50R18 tires dimensions in millimetre (mm) and inches (") | 225/50R18 tires dimensions in millimetre (mm) and inches (") | Difference b/w 235/50R18 and 225/50R18 in millimetre (mm) and inches (") | Percentage ≈ difference b/w 235/50R18 and 225/50R18 |
Section Width | 235 mm (≈ 9.25") | 225 mm (≈ 8.86") | 10 mm (≈ 0.39") | ≈ 4.3% |
Sidewall Height | 118 mm (≈ 4.63") | 113 mm (≈ 4.45") | 5 mm (≈ 0.18") | ≈ 4.3% |
Overall Diameter | 693 mm (≈ 27.3" rounded from 27.26) | 679 mm (≈ 26.75") | 14 mm (≈ 0.55") | ≈ 2.0% |
Circumference | 2174 mm (≈ 85.6") | 2134 mm (≈ 84.02") | 40 mm (≈ 1.59") | ≈ 1.9% |
Radius | 346 mm (≈ 13.63") | 340 mm (≈ 13.38") | 6 mm (≈ 0.24") | ≈ 1.7% |
Rim Diameter | 457.2 mm (18.00") | 457.2 mm (18.00") | - | - |
Rim Width Range | 6.5’’-8.5’’ | 6.0’’-8.0’’ | - | - |
Can I use 225/50R18 instead of 235/50R18?
Yes, you can generally switch from 235/50R18 to 225/50R18, with only minor speedometer changes and some less grip, but potentially better fuel efficiency, even though the difference is barely noticeable; also, ensure the load rating of the narrower 225/50R18 fits vehicle requirements to avoid excessive wear and overloading damage on suspension.
For guidance on safe upsizing or downsizing within acceptable engineering limits, see our dedicated guide: How Much Can You Change Tire Size Safely? 3% Rule, Upsizing Limits, and Fitment Guide.
FAQ
Are 235/50R18 tires available in XL load ratings?
Can 235/50R18 be used on SUVs?
Does 235/50R18 require recalibration if changed?
Is 235/50R18 considered a tall tire?
What are safe replacement alternatives for 235/50R18?
What rim width works best for 235/50R18?
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