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255/50R20 Tire Size
Shop 255/50R20 tires in stock with confirmed size specs, validated diameter in inches, approved rim width range, and verified vehicle fitment before purchase.
Browse and filter 255/50R20 tires from Continental, Pirelli, Yokohama and more to quickly find your ideal fit.
All You Need to Know About 255 50r20 Tires
255 50r 20 tires have a section width of 255 millimeters (mm), an aspect ratio of 50%, radial construction, and a 20-inch wheel diameter. The 255/50r20 tire size has an overall diameter of 30.0 inches and fits within a 7.0’’-9.0’’ rim width range, making it a factory and replacement tire size for many midsize and luxury SUVs.
255/50R20 Size Quick Specs
- Overall diameter: 30 in
- Sidewall height: 5.0 in
- Section width: 255 mm
- Rim width range: 7.0-9.0 in
- Wheel diameter: 20 in
Note: The calculated overall diameter of 255/50R20 tires is 30 inches. Actual mounted diameter may vary slightly (±0.1 - 0.3 inches) depending on manufacturer, tread design, and load rating.
What Are the Dimensions of 255/50r20 in Inches?
In inches, a 255/50R20 tire measures 30.04 inches in overall diameter, 10.04 inches in width, and has a 5.02-inch sidewall height.
255/50R20 In Inches: All measurements
- Total height: 30.04 inches
- Section width: 10.04 inches
- Sidewall height: 5.02 inches
- Circumference: 94.4 inches
In inch format, 255/50R20 can be written as:
30.0" × 10.0" R20
Common Vehicle Fitments for 255/50R20
- Audi Q7 (4M generation, 2016present, select 20" trims)
- Audi Q8 e-tron (2023-present, factory 20")
- Mercedes-Benz GLE-Class (V167, 2019-present, select trims - note: primary 20" OEM size is 275/50R20; 255/50R20 applies to specific configurations)
- Volvo XC90 (2nd gen, 2016-present, factory 20" option)
- Land Rover Range Rover Velar (2017-present, factory 20"
- Acura MDX (2021-present, factory 20")
- Cadillac XT5 / XT6 (factory 20")
255 50r20 Tires For Sale
Well-regarded options in 255/50R20 size include:
255/50r20 all season tires: Pirelli Scorpion Zero All Season, Hankook iON Evo AS SUV IH01A
255 50r20 all terrain tires: Nitto Nomad Grappler, Nexen Roadian ATX
Comparison of 255/50R20 With Similar Tire Sizes
Comparing 255/50R20 with 265/50R20 and 245/50R20 shows how small changes in width affect sidewall height, overall diameter, stance, and speedometer behavior - while keeping the same 20-inch wheel diameter.
What Is the Difference Between 255 50 r20 vs 265 50r20?
The main difference between 255 50 r20 vs 265 50r20 is the section width. Both fit 20-inch wheels and share the same aspect ratio, but the wider 265/50R20 has a slightly taller sidewall and a larger overall diameter.
The 255/50R20 has a sidewall height of 127.50 mm (≈ 5.02") and an overall diameter of 763.0 mm (≈ 30.04"). The 265/50R20 has a sidewall height of 132.50 mm (≈ 5.22") and an overall diameter of 773.0 mm (≈ 30.43").
This means the 265/50R20 is 10 mm wider, has a 5.00 mm (≈ 0.20") taller sidewall, and is 10.00 mm (≈ 0.39") larger overall.
255 50 r20 vs 265 50r20 Tire Size Comparison Table
Tire Dimension | 255/50R20 (mm & in) | 265/50R20 (mm & in) | Difference (mm & in) | Percentage Difference |
Section Width | 255 mm (≈ 10.04") | 265 mm (≈ 10.43") | 10 mm (≈ 0.39") | ≈ 3.92% |
Sidewall Height | 127.50 mm (≈ 5.02") | 132.50 mm (≈ 5.22") | 5.00 mm (≈ 0.20") | ≈ 3.92% |
Overall Diameter | 763.0 mm (≈ 30.04") | 773.0 mm (≈ 30.43") | 10.0 mm (≈ 0.39") | ≈ 1.31% |
Circumference | 2397.04 mm (≈ 94.37") | 2428.45 mm (≈ 95.61") | 31.42 mm (≈ 1.24") | ≈ 1.31% |
Radius | 381.50 mm (≈ 15.02") | 386.50 mm (≈ 15.22") | 5.00 mm (≈ 0.20") | ≈ 1.31% |
Rim Diameter | 20" | 20" | - | 0% |
Recommended Rim Width | 7.0-9.0" | 7.5-9.5" | - | - |
Recommended 265/50R20 Tires
If you plan to switch to 265/50R20 instead of 255/50R20, well-regarded options in this size include:
What Is the Difference Between 255/50R20 vs 245/50R20?
The main difference between 255/50R20 and 245/50R20 is the section width. Both fit 20-inch wheels and share the same aspect ratio, but the narrower 245/50R20 has a slightly shorter sidewall and a smaller overall diameter.
The 255/50R20 has a sidewall height of 127.50 mm (≈ 5.02") and an overall diameter of 763.0 mm (≈ 30.04"). The 245/50R20 has a sidewall height of 122.50 mm (≈ 4.82") and an overall diameter of 753.0 mm (≈ 29.65").
This means the 245/50R20 is 10 mm narrower, has a 5.00 mm (≈ 0.20") shorter sidewall, and is 10.00 mm (≈ 0.39") smaller overall.
255/50R20 vs 245/50R20 Tire Size Comparison Table
Tire Dimension | 255/50R20 (mm & in) | 245/50R20 (mm & in) | Difference (mm & in) | Percentage Difference |
Section Width | 255 mm (≈ 10.04") | 245 mm (≈ 9.65") | 10 mm (≈ 0.39") | ≈ 3.92% |
Sidewall Height | 127.50 mm (≈ 5.02") | 122.50 mm (≈ 4.82") | 5.00 mm (≈ 0.20") | ≈ 3.92% |
Overall Diameter | 763.0 mm (≈ 30.04") | 753.0 mm (≈ 29.65") | 10.0 mm (≈ 0.39") | ≈ 1.31% |
Circumference | 2397.04 mm (≈ 94.37") | 2365.62 mm (≈ 93.13") | 31.42 mm (≈ 1.24") | ≈ 1.31% |
Radius | 381.50 mm (≈ 15.02") | 376.50 mm (≈ 14.82") | 5.00 mm (≈ 0.20") | ≈ 1.31% |
Rim Diameter | 20" | 20" | - | 0% |
Recommended Rim Width | 7.0-9.0" | 7.0-8.5" | - | - |
All You Need to Know About 255 50r20 Tires
255 50r 20 tires have a section width of 255 millimeters (mm), an aspect ratio of 50%, radial construction, and a 20-inch wheel diameter. The 255/50r20 tire size has an overall diameter of 30.0 inches and fits within a 7.0’’-9.0’’ rim width range, making it a factory and replacement tire size for many midsize and luxury SUVs.
255/50R20 Size Quick Specs
- Overall diameter: 30 in
- Sidewall height: 5.0 in
- Section width: 255 mm
- Rim width range: 7.0-9.0 in
- Wheel diameter: 20 in
Note: The calculated overall diameter of 255/50R20 tires is 30 inches. Actual mounted diameter may vary slightly (±0.1 - 0.3 inches) depending on manufacturer, tread design, and load rating.
What Are the Dimensions of 255/50r20 in Inches?
In inches, a 255/50R20 tire measures 30.04 inches in overall diameter, 10.04 inches in width, and has a 5.02-inch sidewall height.
255/50R20 In Inches: All measurements
- Total height: 30.04 inches
- Section width: 10.04 inches
- Sidewall height: 5.02 inches
- Circumference: 94.4 inches
In inch format, 255/50R20 can be written as:
30.0" × 10.0" R20
Common Vehicle Fitments for 255/50R20
- Audi Q7 (4M generation, 2016present, select 20" trims)
- Audi Q8 e-tron (2023-present, factory 20")
- Mercedes-Benz GLE-Class (V167, 2019-present, select trims - note: primary 20" OEM size is 275/50R20; 255/50R20 applies to specific configurations)
- Volvo XC90 (2nd gen, 2016-present, factory 20" option)
- Land Rover Range Rover Velar (2017-present, factory 20"
- Acura MDX (2021-present, factory 20")
- Cadillac XT5 / XT6 (factory 20")
255 50r20 Tires For Sale
Well-regarded options in 255/50R20 size include:
255/50r20 all season tires: Pirelli Scorpion Zero All Season, Hankook iON Evo AS SUV IH01A
255 50r20 all terrain tires: Nitto Nomad Grappler, Nexen Roadian ATX
Comparison of 255/50R20 With Similar Tire Sizes
Comparing 255/50R20 with 265/50R20 and 245/50R20 shows how small changes in width affect sidewall height, overall diameter, stance, and speedometer behavior - while keeping the same 20-inch wheel diameter.
What Is the Difference Between 255 50 r20 vs 265 50r20?
The main difference between 255 50 r20 vs 265 50r20 is the section width. Both fit 20-inch wheels and share the same aspect ratio, but the wider 265/50R20 has a slightly taller sidewall and a larger overall diameter.
The 255/50R20 has a sidewall height of 127.50 mm (≈ 5.02") and an overall diameter of 763.0 mm (≈ 30.04"). The 265/50R20 has a sidewall height of 132.50 mm (≈ 5.22") and an overall diameter of 773.0 mm (≈ 30.43").
This means the 265/50R20 is 10 mm wider, has a 5.00 mm (≈ 0.20") taller sidewall, and is 10.00 mm (≈ 0.39") larger overall.
255 50 r20 vs 265 50r20 Tire Size Comparison Table
Tire Dimension | 255/50R20 (mm & in) | 265/50R20 (mm & in) | Difference (mm & in) | Percentage Difference |
Section Width | 255 mm (≈ 10.04") | 265 mm (≈ 10.43") | 10 mm (≈ 0.39") | ≈ 3.92% |
Sidewall Height | 127.50 mm (≈ 5.02") | 132.50 mm (≈ 5.22") | 5.00 mm (≈ 0.20") | ≈ 3.92% |
Overall Diameter | 763.0 mm (≈ 30.04") | 773.0 mm (≈ 30.43") | 10.0 mm (≈ 0.39") | ≈ 1.31% |
Circumference | 2397.04 mm (≈ 94.37") | 2428.45 mm (≈ 95.61") | 31.42 mm (≈ 1.24") | ≈ 1.31% |
Radius | 381.50 mm (≈ 15.02") | 386.50 mm (≈ 15.22") | 5.00 mm (≈ 0.20") | ≈ 1.31% |
Rim Diameter | 20" | 20" | - | 0% |
Recommended Rim Width | 7.0-9.0" | 7.5-9.5" | - | - |
Recommended 265/50R20 Tires
If you plan to switch to 265/50R20 instead of 255/50R20, well-regarded options in this size include:
What Is the Difference Between 255/50R20 vs 245/50R20?
The main difference between 255/50R20 and 245/50R20 is the section width. Both fit 20-inch wheels and share the same aspect ratio, but the narrower 245/50R20 has a slightly shorter sidewall and a smaller overall diameter.
The 255/50R20 has a sidewall height of 127.50 mm (≈ 5.02") and an overall diameter of 763.0 mm (≈ 30.04"). The 245/50R20 has a sidewall height of 122.50 mm (≈ 4.82") and an overall diameter of 753.0 mm (≈ 29.65").
This means the 245/50R20 is 10 mm narrower, has a 5.00 mm (≈ 0.20") shorter sidewall, and is 10.00 mm (≈ 0.39") smaller overall.
255/50R20 vs 245/50R20 Tire Size Comparison Table
Tire Dimension | 255/50R20 (mm & in) | 245/50R20 (mm & in) | Difference (mm & in) | Percentage Difference |
Section Width | 255 mm (≈ 10.04") | 245 mm (≈ 9.65") | 10 mm (≈ 0.39") | ≈ 3.92% |
Sidewall Height | 127.50 mm (≈ 5.02") | 122.50 mm (≈ 4.82") | 5.00 mm (≈ 0.20") | ≈ 3.92% |
Overall Diameter | 763.0 mm (≈ 30.04") | 753.0 mm (≈ 29.65") | 10.0 mm (≈ 0.39") | ≈ 1.31% |
Circumference | 2397.04 mm (≈ 94.37") | 2365.62 mm (≈ 93.13") | 31.42 mm (≈ 1.24") | ≈ 1.31% |
Radius | 381.50 mm (≈ 15.02") | 376.50 mm (≈ 14.82") | 5.00 mm (≈ 0.20") | ≈ 1.31% |
Rim Diameter | 20" | 20" | - | 0% |
Recommended Rim Width | 7.0-9.0" | 7.0-8.5" | - | - |
FAQ
Can I replace 255/50R20 with 275/45R20?
Can I use 245/50R20 instead of 255/50R20?
Can I use 265/50R20 instead of 255/50R20?
Does switching away from 255/50R20 affect AWD systems?
Is 255/50R20 considered a 30-inch tire?
Is 255/50R20 suitable for winter tires?
Is 255/50R20 typically XL rated?
What rim width is approved for 255/50R20?
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