2020 Buick Regal Sportback Tire Size
Your Buick was manufactured with different tire sizes. To determine the best tire size for your specific 2020 Buick Regal Sportback, we first need to determine your rim size. Please review the information below.
How to Determine Rim Size
Check your existing tires. Your Buick Regal Sportback's rim size is the number to the right of the R. In the example pictured here, the tire size fits 16-inch rims.
Rim Size Selection
Now that you know your rim size, make a selection below to filter your results.
17-Inch Rims
2020 Buick Regal Sportback
The original tire size for your 2020 Buick Regal Sportback is listed below. Tap on the box to view a color-coded explanation of your Buick Regal Sportback's' tire size.
P225/55R17 95
Simplified Size: 225-55-17
Simplified size is useful for shopping and buying tires.
The original tire size for your 2020 Buick Regal Sportback is P225/55R17 95H. A color-coded explanation of the 2020 Buick Regal Sportback's tire size is shown below.
P | This letter denotes the intended use of the tire.
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225 | This number indicates that your tire has a width of 225 millimeters. | ||||||
17 | The tire size was designed to fit rims or wheels that are 17 inches in diameter. | ||||||
95 | This tire has a load index of 95, which means it's capable of carrying a load of 1518 pounds (690 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||
55 | This number means that your tire has an aspect ratio of 55%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 55% of the width. In this case, the sidewall height works out to be 123 millimeters. | ||||||
R | This letter denotes how your tire was constructed. Radial is the standard construction method for about 99% of all tires sold today.
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This tire has a speed rating of H, which means 130 mph (210 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |
18-Inch Rims
2020 Buick Regal Sportback
The original tire size for your 2020 Buick Regal Sportback is listed below. Tap on the box to view a color-coded explanation of your Buick Regal Sportback's' tire size.
Trim Options:
EssencePreferred
245/45R18 96
Simplified Size: 245-45-18
Simplified size is useful for shopping and buying tires.
The original tire size for your 2020 Buick Regal Sportback is 245/45R18 96H. A color-coded explanation of the 2020 Buick Regal Sportback's tire size is shown below.
245 | This number indicates that your tire has a width of 245 millimeters. | ||||||
18 | The tire size was designed to fit rims or wheels that are 18 inches in diameter. | ||||||
96 | This tire has a load index of 96, which means it's capable of carrying a load of 1562 pounds (710 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||
45 | This number means that your tire has an aspect ratio of 45%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 45% of the width. In this case, the sidewall height works out to be 110 millimeters. | ||||||
R | This letter denotes how your tire was constructed. Radial is the standard construction method for about 99% of all tires sold today.
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This tire has a speed rating of H, which means 130 mph (210 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |
19-Inch Rims
2020 Buick Regal Sportback
The original tire size for your 2020 Buick Regal Sportback is listed below. Tap on the box to view a color-coded explanation of your Buick Regal Sportback's' tire size.
Trim Options:
AvenirGS
245/40R19 94
Simplified Size: 245-40-19
Simplified size is useful for shopping and buying tires.
The original tire size for your 2020 Buick Regal Sportback is 245/40R19 94W. A color-coded explanation of the 2020 Buick Regal Sportback's tire size is shown below.
245 | This number indicates that your tire has a width of 245 millimeters. | ||||||
19 | The tire size was designed to fit rims or wheels that are 19 inches in diameter. | ||||||
94 | This tire has a load index of 94, which means it's capable of carrying a load of 1474 pounds (670 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||
40 | This number means that your tire has an aspect ratio of 40%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 40% of the width. In this case, the sidewall height works out to be 98 millimeters. | ||||||
R | This letter denotes how your tire was constructed. Radial is the standard construction method for about 99% of all tires sold today.
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This tire has a speed rating of W, which means 167 mph (270 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |