2018 Kia Optima Tire Size

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

How to Determine Rim Size

Check your existing tires.  Your Kia Optima'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.

16-Inch Rims

2018 Kia Optima

 

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

Trim Options:

Hybrid PremiumLXLX 1.6T

205/65R16 95H

Simplified Size:  205-65-16

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Kia Optima is 205/65R16 95H.  A color-coded explanation of the 2018 Kia Optima's tire size is shown below.

205

This number indicates that your tire has a width of 205 millimeters.

65

This number means that your tire has an aspect ratio of 65%.  In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 65% of the width.  In this case, the sidewall height works out to be 133 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
16

The tire size was designed to fit rims or wheels that are 16 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.

H

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.

17-Inch Rims

2018 Kia Optima

 

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

Trim Options:

EXHybrid EXPlug-In Hybrid EXS

215/55R17 94V

Simplified Size:  215-55-17

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Kia Optima is 215/55R17 94V.  A color-coded explanation of the 2018 Kia Optima's tire size is shown below.

215

This number indicates that your tire has a width of 215 millimeters.

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 118 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
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.

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.

18-Inch Rims

2018 Kia Optima

 

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

Trim Options:

SSX

235/45R18 94V

Simplified Size:  235-45-18

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Kia Optima is 235/45R18 94V.  A color-coded explanation of the 2018 Kia Optima's tire size is shown below.

235

This number indicates that your tire has a width of 235 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 105 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
18

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

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.