2015 Buick Regal Tire Size

Your Buick was manufactured with different tire sizes.  To determine the best tire size for your specific 2015 Buick Regal, 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'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

2015 Buick Regal

 

The original tire size for your 2015 Buick Regal is listed below. Tap on the box to view a color-coded explanation of your Buick Regal's' tire size.

Trim Options:

Premium eAssist

P235/50R17 95T

Simplified Size:  235-50-17

Simplified size is useful for shopping and buying tires.

The original tire size for your 2015 Buick Regal is P235/50R17 95T.  A color-coded explanation of the 2015 Buick Regal's tire size is shown below.

P

This letter denotes the intended use of the tire.

PPassenger Vehicle
LTLight Truck
CCommercial Vehicle
235

This number indicates that your tire has a width of 235 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.

50

This number means that your tire has an aspect ratio of 50%.  In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 50% of the width.  In this case, the sidewall height works out to be 117 millimeters.

R

This letter denotes how your tire was constructed.  Radial is the standard construction method for about 99% of all tires sold today.

RRadial
BBias Belt
DDiagonal
T

This tire has a speed rating of T, which means 118 mph (190 km/h) is the maximum speed that can be sustained for 10 minutes.  A higher speed becomes dangerous.

18-Inch Rims

2015 Buick Regal

 

The original tire size for your 2015 Buick Regal is listed below. Tap on the box to view a color-coded explanation of your Buick Regal's' tire size.

P235/50R18 97V

Simplified Size:  235-50-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2015 Buick Regal is P235/50R18 97V.  A color-coded explanation of the 2015 Buick Regal's tire size is shown below.

P

This letter denotes the intended use of the tire.

PPassenger Vehicle
LTLight Truck
CCommercial Vehicle
235

This number indicates that your tire has a width of 235 millimeters.

18

The tire size was designed to fit rims or wheels that are 18 inches in diameter.

97

This tire has a load index of 97, which means it's capable of carrying a load of 1606 pounds (730 kg) or less.  A higher number means the tire can carry more weight.  A lower number means the opposite.

50

This number means that your tire has an aspect ratio of 50%.  In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 50% of the width.  In this case, the sidewall height works out to be 117 millimeters.

R

This letter denotes how your tire was constructed.  Radial is the standard construction method for about 99% of all tires sold today.

RRadial
BBias Belt
DDiagonal
V

This tire has a speed rating of V, which means 149 mph (240 km/h) is the maximum speed that can be sustained for 10 minutes.  A higher speed becomes dangerous.

19-Inch Rims

2015 Buick Regal

 

The original tire size for your 2015 Buick Regal is listed below. Tap on the box to view a color-coded explanation of your Buick Regal's' tire size.

Trim Options:

GS

P245/40R19 94W

Simplified Size:  245-40-19

Simplified size is useful for shopping and buying tires.

The original tire size for your 2015 Buick Regal is P245/40R19 94W.  A color-coded explanation of the 2015 Buick Regal's tire size is shown below.

P

This letter denotes the intended use of the tire.

PPassenger Vehicle
LTLight Truck
CCommercial Vehicle
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.

RRadial
BBias Belt
DDiagonal
W

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.

20-Inch Rims

2015 Buick Regal

 

The original tire size for your 2015 Buick Regal is listed below. Tap on the box to view a color-coded explanation of your Buick Regal's' tire size.

Trim Options:

GS

255/35ZR20/XL (97Y)

Simplified Size:  255-35-20

Simplified size is useful for shopping and buying tires.

The original tire size for your 2015 Buick Regal is 255/35ZR20/XL 97(Y).  A color-coded explanation of the 2015 Buick Regal's tire size is shown below.

255

This number indicates that your tire has a width of 255 millimeters.

20

The tire size was designed to fit rims or wheels that are 20 inches in diameter.

XL

The mark of XL means extra load.  A tire with this designation can handle higher inflation pressures than a regular tire, which increases its maximum load.

97

This tire has a load index of 97, which means it's capable of carrying a load of 1606 pounds (730 kg) or less.  A higher number means the tire can carry more weight.  A lower number means the opposite.

Z

This tire has a speed class of Z, which means it's part of an elite speed class of 149 mph or more (240 km/h).  A tire's speed class is less specific than the speed rating.

35

This number means that your tire has an aspect ratio of 35%.  In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 35% of the width.  In this case, the sidewall height works out to be 89 millimeters.

R

This letter denotes how your tire was constructed.  Radial is the standard construction method for about 99% of all tires sold today.

RRadial
BBias Belt
DDiagonal
Y

This tire has a speed rating of Y, which means 186 mph (300 km/h) is the maximum speed that can be sustained for 10 minutes.  A higher speed becomes dangerous.