# 2021 Mercedes-Benz C300 Tire Size

Your Mercedes-Benz was manufactured with different tire sizes. To determine the best tire size for your specific 2021 Mercedes-Benz C300, we first need to determine your rim size. Please review the information below.

## How to Determine Rim Size

Check your existing tires. Your Mercedes-Benz C300'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

### 2021 Mercedes-Benz C300

The original tire size for your 2021 Mercedes-Benz C300 is listed below. Tap on the box to view a color-coded explanation of your Mercedes-Benz C300's' tire size.

Trim Options:

### 4Matic SedanSedan

## 225/50R17 94

### Simplified Size: 225-50-17

Simplified size is useful for shopping and buying tires.

The original tire size for your 2021 Mercedes-Benz C300 is **225/50R17 94H**. A color-coded explanation of the 2021 Mercedes-Benz C300's tire size is shown below.

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. | ||||||

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. | ||||||

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 112 millimeters. | ||||||

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

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

### 2021 Mercedes-Benz C300

Your 2021 Mercedes-Benz C300 was manufactured with multiple tire sizes. Choose a tire size below to get a color-coded explanation of the differences. Then pick the best tire size for your 2021 Mercedes-Benz C300.

Trim Options:

### 4Matic Coupe & Cabriolet4Matic SedanCoupe & CabrioletSedan

## 245/40R18/XL 97(Rear)

### Simplified Size: 225-45-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2021 Mercedes-Benz C300 is **225/45R18/XL 95H (Front)**. A color-coded explanation of the 2021 Mercedes-Benz C300'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. | ||||||

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. | ||||||

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.
| ||||||

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. |

Trim Options:

### 4Matic Coupe & Cabriolet4Matic SedanCoupe & CabrioletSedan

## 225/45R18/XL 95(Front)

### Simplified Size: 245-40-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2021 Mercedes-Benz C300 is **225/45R18/XL 95H (Front)**. A color-coded explanation of the 2021 Mercedes-Benz C300's tire size is shown below.

225 | This number indicates that your tire has a width of 225 millimeters. | ||||||

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

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. | ||||||

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 101 millimeters. | ||||||

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

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. |

Trim Options:

### 4Matic Coupe & Cabriolet4Matic SedanCoupe & CabrioletSedan

## 245/40R18/XL 97(Rear)

### Simplified Size: 225-45-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2021 Mercedes-Benz C300 is **225/45R18/XL 95Y (Front)**. A color-coded explanation of the 2021 Mercedes-Benz C300'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. | ||||||

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. | ||||||

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 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:

### 4Matic Coupe & Cabriolet4Matic SedanCoupe & CabrioletSedan

## 225/45R18/XL 95(Front)

### Simplified Size: 245-40-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2021 Mercedes-Benz C300 is **225/45R18/XL 95Y (Front)**. A color-coded explanation of the 2021 Mercedes-Benz C300's tire size is shown below.

225 | This number indicates that your tire has a width of 225 millimeters. | ||||||

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

XL | |||||||

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. | ||||||

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 101 millimeters. | ||||||

R |
| ||||||

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. |

## 19-Inch Rims

### 2021 Mercedes-Benz C300

There are multiple tire sizes for your 2021 Mercedes-Benz C300 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 2021 Mercedes-Benz C300.

Trim Options:

### 4Matic Coupe & CabrioletCoupe & Cabriolet

## 245/35R19/XL 93(Rear)

### Simplified Size: 225-40-19

Simplified size is useful for shopping and buying tires.

The original tire size for your 2021 Mercedes-Benz C300 is **225/40R19/XL 93Y (Front)**. A color-coded explanation of the 2021 Mercedes-Benz C300'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. | ||||||

XL | |||||||

93 | This tire has a load index of 93, which means it's capable of carrying a load of 1430 pounds (650 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. | ||||||

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 85 millimeters. | ||||||

R |
| ||||||

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:

### 4Matic Coupe & CabrioletCoupe & Cabriolet

## 225/40R19/XL 93(Front)

### Simplified Size: 245-35-19

Simplified size is useful for shopping and buying tires.

The original tire size for your 2021 Mercedes-Benz C300 is **225/40R19/XL 93Y (Front)**. A color-coded explanation of the 2021 Mercedes-Benz C300's tire size is shown below.

225 | This number indicates that your tire has a width of 225 millimeters. | ||||||

19 | The tire size was designed to fit rims or wheels that are 19 inches in diameter. | ||||||

XL | |||||||

93 | This tire has a load index of 93, which means it's capable of carrying a load of 1430 pounds (650 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 90 millimeters. | ||||||

R |
| ||||||

Trim Options:

### 4Matic Coupe & Cabriolet4Matic SedanCoupe & CabrioletSedan

## 255/35R19/XL 96(Rear)

### Simplified Size: 225-40-19

Simplified size is useful for shopping and buying tires.

The original tire size for your 2021 Mercedes-Benz C300 is **225/40R19/XL 93Y (Front)**. A color-coded explanation of the 2021 Mercedes-Benz C300's tire size is shown below.

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

19 | The tire size was designed to fit rims or wheels that are 19 inches in diameter. | ||||||

XL | |||||||

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. | ||||||

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 |
| ||||||

Trim Options:

### 4Matic Coupe & Cabriolet4Matic SedanCoupe & CabrioletSedan

## 225/40R19/XL 93(Front)

### Simplified Size: 255-35-19

Simplified size is useful for shopping and buying tires.

**225/40R19/XL 93Y (Front)**. A color-coded explanation of the 2021 Mercedes-Benz C300's tire size is shown below.

225 | This number indicates that your tire has a width of 225 millimeters. | ||||||

19 | The tire size was designed to fit rims or wheels that are 19 inches in diameter. | ||||||

XL | |||||||

93 | This tire has a load index of 93, which means it's capable of carrying a load of 1430 pounds (650 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 90 millimeters. | ||||||

R |
| ||||||