# 2018 Jeep Grand Cherokee Tire Size

Your Jeep was manufactured with different tire sizes. To determine the best tire size for your specific 2018 Jeep Grand Cherokee, we first need to determine your rim size. Please review the information below.

## How to Determine Rim Size

Check your existing tires. Your Jeep Grand Cherokee'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

### 2018 Jeep Grand Cherokee

The original tire size for your 2018 Jeep Grand Cherokee is listed below. Tap on the box to view a color-coded explanation of your Jeep Grand Cherokee's' tire size.

Trim Options:

### LaredoLaredo E

## P245/70R17 108

### Simplified Size: 245-70-17

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Jeep Grand Cherokee is **P245/70R17 108T**. A color-coded explanation of the 2018 Jeep Grand Cherokee's tire size is shown below.

P | This letter denotes the intended use of the tire.
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245 | This number indicates that your tire has a width of 245 millimeters. | ||||||

70 | This number means that your tire has an aspect ratio of 70%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 70% of the width. In this case, the sidewall height works out to be 171 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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17 | The tire size was designed to fit rims or wheels that are 17 inches in diameter. | ||||||

108 | This tire has a load index of 108, which means it's capable of carrying a load of 2200 pounds (1000 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||

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

### 2018 Jeep Grand Cherokee

The original tire size for your 2018 Jeep Grand Cherokee is listed below. Tap on the box to view a color-coded explanation of your Jeep Grand Cherokee's' tire size.

Trim Options:

### Laredo ELimitedOverlandTrailhawk

## 265/60R18 110

### Simplified Size: 265-60-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Jeep Grand Cherokee is **265/60R18 110T**. A color-coded explanation of the 2018 Jeep Grand Cherokee's tire size is shown below.

265 | This number indicates that your tire has a width of 265 millimeters. | ||||||

60 | This number means that your tire has an aspect ratio of 60%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 60% of the width. In this case, the sidewall height works out to be 159 millimeters. | ||||||

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

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

110 | This tire has a load index of 110, which means it's capable of carrying a load of 2332 pounds (1060 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||

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. |

## 20-Inch Rims

### 2018 Jeep Grand Cherokee

There are multiple tire sizes for your 2018 Jeep Grand Cherokee that depend upon the trim level. Look for your trim level below to get a color-coded explanation of your tire size. Then pick the best tire size for your 2018 Jeep Grand Cherokee.

Trim Options:

### AltitudeHigh AltitudeLimitedLimited Sterling EditionOverlandSummit

## 265/50R20 107

### Simplified Size: 265-50-20

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Jeep Grand Cherokee is **265/50R20 107T**. A color-coded explanation of the 2018 Jeep Grand Cherokee's tire size is shown below.

265 | This number indicates that your tire has a width of 265 millimeters. | ||||||

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 132 millimeters. | ||||||

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

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

107 | This tire has a load index of 107, which means it's capable of carrying a load of 2145 pounds (975 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||

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. |

Trim Options:

### High AltitudeLimitedLimited Sterling EditionOverlandSummit

## 265/50R20 107

### Simplified Size: 265-50-20

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Jeep Grand Cherokee is **265/50R20 107V**. A color-coded explanation of the 2018 Jeep Grand Cherokee's tire size is shown below.

265 | This number indicates that your tire has a width of 265 millimeters. | ||||||

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 132 millimeters. | ||||||

R |
| ||||||

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

107 | This tire has a load index of 107, which means it's capable of carrying a load of 2145 pounds (975 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||

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. |

Trim Options:

### Trackhawk

## 295/45ZR20 (110 )

### Simplified Size: 295-45-20

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Jeep Grand Cherokee is **295/45ZR20 (110Y)**. A color-coded explanation of the 2018 Jeep Grand Cherokee's tire size is shown below.

295 | This number indicates that your tire has a width of 295 millimeters. | ||||||

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 132 millimeters. | ||||||

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. | ||||||

R |
| ||||||

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

110 | This tire has a load index of 110, which means it's capable of carrying a load of 2332 pounds (1060 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||

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. |

Trim Options:

### SRTTrackhawk

## 295/45ZR20 110

### Simplified Size: 295-45-20

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Jeep Grand Cherokee is **295/45ZR20 110W**. A color-coded explanation of the 2018 Jeep Grand Cherokee's tire size is shown below.

295 | This number indicates that your tire has a width of 295 millimeters. | ||||||

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 132 millimeters. | ||||||

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. | ||||||

R |
| ||||||

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

110 | This tire has a load index of 110, which means it's capable of carrying a load of 2332 pounds (1060 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||

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. |

Trim Options:

### SRT

## 295/45ZR20 110

### Simplified Size: 295-45-20

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Jeep Grand Cherokee is **295/45ZR20 110Y**. A color-coded explanation of the 2018 Jeep Grand Cherokee's tire size is shown below.

295 | This number indicates that your tire has a width of 295 millimeters. | ||||||

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 132 millimeters. | ||||||

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. | ||||||

R |
| ||||||

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

110 | |||||||

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. |