315/35R18 Tires

Understanding 315/35R18 tire size is crucial for making informed decisions when purchasing new tires, whether it is for replacement or upgrade, as it plays an important role in your vehicle's performance and safety. Let's explore 315/35R18 tire specs and dimensions, what vehicles come equipped with 315/35R18 tires, what are its replacement options, and where to buy 315/35R18 tires at lowest prices online.

Buy 315/35R18 Tires from $364.13

How to read 315/35R18 tire size?

315/35R18 is a Metric tire size that is commonly used on passenger and crossover vehicles. It also comes in a P-Metric (P315/35R18) variant.

Let us decode each aspect of 315/35R18 tire size dimensions for better understanding:

  • 315 indicates tire's section width, which includes the entire width of the tire from one sidewall to the other. The tread width is typically a bit narrower than the section width. Section width of 315/35R18 tire is 315 millimeters.
  • 35 represents the aspect ratio of a tire. It is the ratio of the tire's sidewall height to its width. For 315/35R18 tire, the sidewall height is 35% of its tread width.
  • R denotes that tire has radial construction.
  • 18 indicates the wheel diameter in inches that the tire is designed to fit. 315/35R18 can be mounted on rims with 18 inches in diameter.

You can learn more about tire size markings on tire sidewall with our comprehensive guide on how to read tire size.

315/35R18 Tire Dimensions

Compare and visualize 315/35R18 tire dimensions in both inches and millimeters. Tire size calculator will help you calculate the dimensions of any tire size.

315/35R18 Section Width
12.4"
26.7"
315/35R18 Tire Side
Tire Circumference
83.8"
18"
4.3"
756 Revs/Mile
Metric Inches
Tire Width 315 mm 12.4"
Aspect Ratio 35%
Rim Diameter 457 mm 18"
Tire Diameter 677 mm 26.7"
Sidewall Height 110 mm 4.3"
Circumference 2126 mm 83.8"
Revolutions 470 per km 756 per mile

315/35R18 Tire Width

Tire width is the measurement of the tire's cross-section at its widest point. 315/35R18 tire has a width of 315 millimeters or 12.4 inches.

Tires with section width of 315 millimeters come equipped on a variety of passenger cars, pickup trucks and sport utility vehicles.

Tire width of 315 millimeters falls under extra wide category. For trucks and SUVs, extra wide tires offer enhanced stability and load-carrying capacity. For high-end sports cars and supercars they offer maximum traction and performance at high speeds.

Tire width plays a pivotal role in determining a vehicle's handling, safety, and efficiency. It is crucial to consider the compatibility of tire width with the vehicle's design and the manufacturer's specifications to maintain optimal functionality and ensure safety.

Tire Width
12.4"

315/35R18 Aspect Ratio

Tire aspect ratio represents the height of the tire's sidewall as a percentage of its width. 315/35R18 tire size has an aspect ratio of 35%.

Tires with an aspect ratio of 35 fall into a category often referred to as ultra-low profile tires. These are characterized by very short sidewalls and are typically used on modern supercars and high-end sports models.

The primary advantage of an ultra-low aspect ratio is improved handling and responsiveness. The shorter sidewall makes the tire stiffer, which reduces sidewall flexing during cornering. This stiffness allows for more precise steering response and improved stability at high speeds, which is crucial for performance-oriented driving.

It's important to note that while ultra-low profile tires offer certain performance benefits, they also come with trade-offs. The ride quality tends to be much firmer, which can be less comfortable on rough roads. Additionally, the reduced sidewall height offers less protection for the wheel, making them more susceptible to damage from potholes or curbs. Due to these characteristics, such tires are best suited for smooth surfaces and performance driving conditions. Vehicle owners considering tires with such low aspect ratios should weigh these factors carefully and ensure that their choice aligns with their driving needs and conditions.

315/35R18 Rim Diameter

Rim diameter refers to the diameter of the wheel on which the tire is mounted, commonly measured in inches. 315/35R18 tire can be mounted on 18-inch wheels. The rim diameter directly correlates with the overall diameter of the tire and affects various aspects of vehicle performance and aesthetics.

Tires with rim diameter of 18 inches are equipped on a select crossover, minivan, passenger car, pickup truck and sport utility vehicle models.

18-inch rims are typical for performance-oriented vehicles, including sports cars and high-end sedans. 18-inch rims allow for the fitting of larger brakes, which are crucial for high-performance vehicles, and can also enhance the vehicle's handling characteristics and appearance.

When selecting a rim diameter, it's crucial to consider the vehicle's design specifications, as altering the rim size can affect the speedometer and odometer calibration, vehicle handling, suspension geometry, and brake clearance.

Rim Diameter
18"

315/35R18 Tire Diameter / Height

Tire diameter represens the total height of a tire, including the rim, when it is fully inflated and not under load. 315/35R18 tire height is 677 millimeters or 26.7 inches.

Tire height affects the clearance between the tire and the vehicle's body or chassis, influences the vehicle's ground clearance, and can impact the accuracy of the vehicle's speedometer and odometer.

For standard passenger cars, tire diameters typically range from about 24 to 30 inches. This includes sedans, hatchbacks, small SUVs, and minivans. Light trucks and larger SUVs might have tires on the higher end of this range or slightly above, often between 29 to 33 inches. Sports cars and high-performance vehicles may have similar diameter ranges as standard passenger cars, but they often feature wider tires with a lower aspect ratio, which can slightly affect the overall diameter. The range for these vehicles is typically between 24 to 30 inches, focusing more on width and profile for performance. Off-road vehicles, including larger SUVs, trucks, and specialized vehicles, often have larger tire diameters to handle rough terrain better. The diameters for these vehicles can range from about 31 to 40 inches or more, depending on the level of off-road capability and customization.

Tire Diameter
26.7"

315/35R18 Sidewall Height

Tire sidewall height, determined by the aspect ratio of a tire, represents the height of the tire's sidewall, measured from the edge of the rim to the top of the tread. 315/35R18 tire sidewall is 110 millimeters or 4.3 inches tall.

Sidewall height affects the tire's ability to dissipate heat and impacts its load-bearing capacity. It also plays a role in aesthetic appeal for many drivers, influencing the overall look of the vehicle.

Tires with a sidewall height of 4.3" offer a balance between performance and comfort, and are common on popular sedans, minivans, light trucks and SUVs.

Sidewall Height
4.3"

315/35R18 Circumference

Tire circumference is the total distance around the outer edge of the tire. 315/35R18 tire has a circumference of 2126 millimeters or 83.8 inches.

Tires with a circumference of 83.8 inches are common on mid-size cars, minivans and SUVs. These tires strike a balance between fuel efficiency and comfort, offering a smoother ride than smaller tires while maintaining reasonable handling and efficiency.

Tire circumference directly influences the speedometer and odometer readings of a vehicle. Mismatched tire circumferences, especially on the same axle, can lead to uneven wear, handling issues, and even mechanical damage, particularly in all-wheel or four-wheel-drive vehicles.

315/35R18 Circumference
Tire Circumference
83.8"

315/35R18 Revolutions

Tire revolutions metric reflects the number of times a tire rotates over a fixed distance. This figure is inherently tied to the tire's circumference - the larger the circumference, the fewer the revolutions needed to cover a mile, and vice versa. 315/35R18 tire makes 470 revolutions per kilometer or 756 revolutions per mile.

Number of the revolutions a tire makes affects greatly vehicle's performance, from speed and distance measurement accuracy to handling, fuel efficiency, and wear and tear.

Popular 315/35R18 tire models

No tire models are available in 315/35R18 tire size, but some are available in similar variant.

Shop more P315/35R18 tires with tire finder.

What is P315/35R18 in inches?

When converted to inches, P315/35R18 tire size is equivalent to 26.7x12.4R18. 26.7 inches indicate the tire diameter, 12.4 inches represent tread width, and 18 inches is the diameter of a rim the tire can be mounted on.

Learn more about P315/35R18 in inches conversion.

P315/35R18 Vehicle Fitment

No vehicles that are equipped with P315/35R18 OEM tire size have been found in our database.

What are replacement sizes for P315/35R18 tire?

P315/35R18 alternative has to be within 3% of the original tire's overall diameter to ensure safe drive and proper speedometer readings. Below is a list of P315/35R18 equivalent and plus sizes that are within the optimal characteristics and dimensions of the orignal tire size.

Keep in mind that different vehicles have different tire requirements. Passenger cars, SUVs, trucks, and high-performance vehicles each have specific types of tires that are engineered for their particular needs. When replacing tires on your vehicle, always refer to your vehicle's owner's manual for manufacturer recommendations on tire size, type, and other specifications.

Replacement Tire Size Tire Diameter Difference
305/35R18 -0.9%
305/30R19 -1.5%
P325/30R19 0.3%
325/30R19 0.3%
315/30R19 -0.6%
305/35R19 3%
P315/30R19 -0.6%
305/25R20 -2.5%
305/30R20 2.2%
325/25R20 -1%

What wheels can P315/35R18 tire be mounted on?

P315/35R18 tires are generally approved to be mounted on 10.5" to 12.5" wide wheels. The following wheel sizes can be used:

  • 18x10.5
  • 18x11
  • 18x11.5
  • 18x12
  • 18x12.5

It is important to note that while a tire might physically fit on a wheel outside of the recommended widths, doing so can affect the tire's performance, handling, and wear. Always refer to your vehicle's manufacturer guidelines and the tire manufacturer's specifications for the best results.

P315/35R18 Tire Size Comparison Chart

Below is a comparison chart where we compare P315/35R18 tire size with other popular sizes. Green indicates that new tire diameter is within the acceptable 3% of the original, while red warns that tire will adversely affect the vehicle's speedometer reading, handling characteristics, or clearance in the wheel well. We recommend to use the tire size comparison tool to ensure proper compatibility when switching to a new tire size.

Tire Size Comparison Tire Diameter Difference
P315/35R18 vs 285/30R18 -7.1%
P315/35R18 vs P255/70R18 20.4%
P315/35R18 vs P255/65R18 16.5%
P315/35R18 vs 255/40R18 -2.4%
P315/35R18 vs P245/60R18 10.9%
P315/35R18 vs 255/45R18 1.5%
P315/35R18 vs P245/40R18 -3.5%
P315/35R18 vs P235/65R18 12.7%
P315/35R18 vs 255/55R18 8.9%
P315/35R18 vs 255/35R18 -6.2%
P315/35R18 vs P265/60R18 14.5%
P315/35R18 vs 275/45R18 4.1%
P315/35R18 vs 245/50R18 3.8%
P315/35R18 vs 265/40R18 -1.2%
P315/35R18 vs 265/35R18 -5%
P315/35R18 vs P275/65R18 20.4%
P315/35R18 vs 265/65R18 18.3%
P315/35R18 vs 245/60R18 10.9%
P315/35R18 vs P265/65R18 18.3%
P315/35R18 vs P235/60R18 9.2%
P315/35R18 vs 255/60R18 12.7%
P315/35R18 vs P235/50R18 2.4%
P315/35R18 vs LT275/65R18 20.4%
P315/35R18 vs LT265/70R18 22.3%
P315/35R18 vs 265/60R18 14.5%
P315/35R18 vs 265/70R18 22.5%
P315/35R18 vs 295/30R18 -6.2%
P315/35R18 vs 275/35R18 -4.1%
P315/35R18 vs 285/60R18 18%
P315/35R18 vs 275/40R18 0%
P315/35R18 vs LT285/75R18 30.7%
P315/35R18 vs LT305/70R18 30.6%
P315/35R18 vs 255/65R18 16.5%
P315/35R18 vs 255/70R18 20.4%
P315/35R18 vs P225/60R18 7.4%
P315/35R18 vs P225/55R18 4.1%
P315/35R18 vs LT275/70R18 24.4%
P315/35R18 vs P225/45R18 -2.7%
P315/35R18 vs P215/55R18 2.4%
P315/35R18 vs LT325/65R18 30%
P315/35R18 vs 275/65R18 20.4%
P315/35R18 vs 245/55R18 7.4%
P315/35R18 vs LT285/70R18 26.4%
P315/35R18 vs 225/50R18 0.9%
P315/35R18 vs 225/55R18 4.1%
P315/35R18 vs LT285/65R18 22.3%
P315/35R18 vs 225/60R18 7.4%
P315/35R18 vs LT285/60R18 18%
P315/35R18 vs LT265/65R18 18.5%
P315/35R18 vs 235/40R18 -4.7%
P315/35R18 vs LT265/60R18 14.5%
P315/35R18 vs 225/45R18 -2.7%
P315/35R18 vs LT295/70R18 28.5%
P315/35R18 vs 205/40R18 -8.3%
P315/35R18 vs 215/40R18 -7.1%
P315/35R18 vs 215/45R18 -3.8%
P315/35R18 vs LT325/60R18 25.1%
P315/35R18 vs 215/50R18 -0.6%
P315/35R18 vs 215/55R18 2.4%
P315/35R18 vs LT305/65R18 26.1%
P315/35R18 vs LT305/60R18 21.6%
P315/35R18 vs 225/40R18 -5.9%
P315/35R18 vs 275/60R18 16.2%
P315/35R18 vs 235/45R18 -1.2%
P315/35R18 vs 295/35R18 -2.1%
P315/35R18 vs 235/60R18 9.2%
P315/35R18 vs 235/65R18 12.7%
P315/35R18 vs 245/35R18 -7.1%
P315/35R18 vs P265/70R18 22.5%
P315/35R18 vs 245/40R18 -3.5%
P315/35R18 vs 285/35R18 -3%
P315/35R18 vs 245/45R18 0%
P315/35R18 vs 235/55R18 5.6%
P315/35R18 vs 215/35R18 -10.3%
P315/35R18 vs 315/30R18 -4.4%
P315/35R18 vs 235/50R18 2.4%
P315/35R18 vs 305/35R19 3%
P315/35R18 vs P235/50R19 6.2%
P315/35R18 vs 285/35R19 0.9%
P315/35R18 vs 285/30R19 -3.2%
P315/35R18 vs P235/55R19 9.5%
P315/35R18 vs 275/55R19 16%
P315/35R18 vs 265/35R19 -1.2%
P315/35R18 vs 325/30R19 0.3%
P315/35R18 vs 295/35R19 1.8%
P315/35R18 vs 285/45R19 9.2%
P315/35R18 vs 285/40R19 5%
P315/35R18 vs P245/45R19 3.8%
P315/35R18 vs 305/30R19 -1.5%
P315/35R18 vs 295/30R19 -2.4%
P315/35R18 vs P245/55R19 11.2%
P315/35R18 vs 295/40R19 6.2%
P315/35R18 vs P255/60R19 16.5%
P315/35R18 vs 275/50R19 12.1%
P315/35R18 vs 245/45R19 3.8%
P315/35R18 vs 245/40R19 0.3%
P315/35R18 vs 235/35R19 -4.4%
P315/35R18 vs 255/60R19 16.5%
P315/35R18 vs 265/30R19 -5%
P315/35R18 vs 235/45R19 2.7%
P315/35R18 vs 265/40R19 2.7%
P315/35R18 vs 265/45R19 6.5%
P315/35R18 vs 235/40R19 -0.9%
P315/35R18 vs 255/55R19 12.7%
P315/35R18 vs 255/50R19 9.2%
P315/35R18 vs 235/50R19 6.2%
P315/35R18 vs 245/50R19 7.7%
P315/35R18 vs 155/70R19 3.5%
P315/35R18 vs 245/35R19 -3.2%
P315/35R18 vs 245/55R19 11.2%
P315/35R18 vs 255/30R19 -5.9%
P315/35R18 vs 255/40R19 1.5%
P315/35R18 vs 235/55R19 9.5%
P315/35R18 vs 255/45R19 5.3%
P315/35R18 vs 265/50R19 10.6%
P315/35R18 vs 275/35R19 -0.3%
P315/35R18 vs 275/30R19 -4.1%
P315/35R18 vs 255/35R19 -2.4%
P315/35R18 vs 225/45R19 1.2%
P315/35R18 vs 225/55R19 8%
P315/35R18 vs 275/40R19 3.8%
P315/35R18 vs 265/55R19 14.5%
P315/35R18 vs 225/35R19 -5.3%
P315/35R18 vs 225/40R19 -2.1%
P315/35R18 vs 275/45R19 8%
P315/35R18 vs 235/50R20 9.9%
P315/35R18 vs 245/40R20 4%
P315/35R18 vs 295/35R20 5.5%
P315/35R18 vs 225/35R20 -1.6%
P315/35R18 vs P235/55R20 13.1%
P315/35R18 vs 235/55R20 13.1%
P315/35R18 vs 295/30R20 1.3%
P315/35R18 vs 245/30R20 -3.1%
P315/35R18 vs LT325/60R20 32.6%
P315/35R18 vs 245/35R20 0.4%
P315/35R18 vs 215/45R20 3.7%
P315/35R18 vs 305/40R20 11.1%
P315/35R18 vs LT275/60R20 23.8%
P315/35R18 vs 235/35R20 -0.7%
P315/35R18 vs LT285/55R20 21.4%
P315/35R18 vs 305/50R20 20.2%
P315/35R18 vs 295/25R20 -3.1%
P315/35R18 vs 315/35R20 7.5%
P315/35R18 vs 235/40R20 2.8%
P315/35R18 vs 245/60R20 18.5%
P315/35R18 vs LT285/65R20 29.8%
P315/35R18 vs 235/45R20 6.4%
P315/35R18 vs LT305/55R20 24.7%
P315/35R18 vs LT295/55R20 23%
P315/35R18 vs 315/30R20 3.1%
P315/35R18 vs LT295/60R20 27.3%
P315/35R18 vs LT295/65R20 31.8%
P315/35R18 vs LT275/55R20 19.8%
P315/35R18 vs 245/45R20 7.5%
P315/35R18 vs 275/50R20 15.8%
P315/35R18 vs LT275/65R20 27.9%
P315/35R18 vs 265/50R20 14.3%
P315/35R18 vs LT265/60R20 22%
P315/35R18 vs 305/35R20 6.6%
P315/35R18 vs 305/30R20 2.2%
P315/35R18 vs 295/45R20 14.3%
P315/35R18 vs 295/40R20 9.9%
P315/35R18 vs 275/30R20 -0.4%
P315/35R18 vs 285/50R20 17.3%
P315/35R18 vs 285/45R20 12.9%
P315/35R18 vs 285/40R20 8.7%
P315/35R18 vs 285/35R20 4.6%
P315/35R18 vs 275/35R20 3.4%
P315/35R18 vs 285/30R20 0.4%
P315/35R18 vs 275/60R20 23.8%
P315/35R18 vs 275/55R20 19.6%
P315/35R18 vs LT285/60R20 25.6%
P315/35R18 vs 265/45R20 10.2%
P315/35R18 vs 245/50R20 11.4%
P315/35R18 vs P275/60R20 23.8%
P315/35R18 vs P275/55R20 19.6%
P315/35R18 vs 255/30R20 -2.2%
P315/35R18 vs 275/45R20 11.7%
P315/35R18 vs 255/35R20 1.3%
P315/35R18 vs P255/50R20 12.9%
P315/35R18 vs P255/45R20 9%
P315/35R18 vs 255/40R20 5.2%
P315/35R18 vs P245/50R20 11.4%
P315/35R18 vs 255/45R20 9%
P315/35R18 vs 255/50R20 12.9%
P315/35R18 vs 255/55R20 16.4%
P315/35R18 vs 255/60R20 20.2%
P315/35R18 vs 265/30R20 -1.3%
P315/35R18 vs 265/35R20 2.5%
P315/35R18 vs 265/40R20 6.4%
P315/35R18 vs 275/40R20 7.5%

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