245/35R21 Tires

Understanding 245/35R21 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 245/35R21 tire specs and dimensions, what vehicles come equipped with 245/35R21 tires, what are its replacement options, and where to buy 245/35R21 tires at lowest prices online.

Buy 245/35R21 Tires from $145.99

How to read 245/35R21 tire size?

245/35R21 is a Metric tire size that is commonly used on passenger and crossover vehicles. It also comes in a High-Load (HL245/35R21) and a P-Metric (P245/35R21) variant.

Let us decode each aspect of 245/35R21 tire size dimensions for better understanding:

  • 245 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 245/35R21 tire is 245 millimeters.
  • 35 represents the aspect ratio of a tire. It is the ratio of the tire's sidewall height to its width. For 245/35R21 tire, the sidewall height is 35% of its tread width.
  • R denotes that tire has radial construction.
  • 21 indicates the wheel diameter in inches that the tire is designed to fit. 245/35R21 can be mounted on rims with 21 inches in diameter.

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

245/35R21 Tire Dimensions

Compare and visualize 245/35R21 tire dimensions in both inches and millimeters. Tire size calculator will help you calculate the dimensions of any tire size.

245/35R21 Section Width
9.6"
27.8"
245/35R21 Tire Side
Tire Circumference
87.3"
21"
3.4"
726 Revs/Mile
Metric Inches
Tire Width 245 mm 9.6"
Aspect Ratio 35%
Rim Diameter 533 mm 21"
Tire Diameter 705 mm 27.8"
Sidewall Height 86 mm 3.4"
Circumference 2214 mm 87.3"
Revolutions 452 per km 726 per mile

245/35R21 Tire Width

Tire width is the measurement of the tire's cross-section at its widest point. 245/35R21 tire has a width of 245 millimeters or 9.6 inches.

Tires with section width of 245 millimeters come equipped on a variety of crossovers, minivans, passenger cars, pickup trucks, sport utility vehicles and vans.

Tires with width of 245 millimeters are considered fairly wide. This width offers enhanced traction and stability, which is crucial for handling heavier vehicles or providing better performance and driving dynamics.

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
9.6"

245/35R21 Aspect Ratio

Tire aspect ratio represents the height of the tire's sidewall as a percentage of its width. 245/35R21 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.

245/35R21 Rim Diameter

Rim diameter refers to the diameter of the wheel on which the tire is mounted, commonly measured in inches. 245/35R21 tire can be mounted on 21-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 21 inches are equipped on a select crossover, passenger car, pickup truck and sport utility vehicle models.

21-inch rims are often used on high-end SUVs, light trucks, or high-performance sports cars. 21-inch rims are usually chosen for aesthetic reasons, or to accommodate larger, more robust tires needed for off-road or heavy-load conditions.

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
21"

245/35R21 Tire Diameter / Height

Tire diameter represens the total height of a tire, including the rim, when it is fully inflated and not under load. 245/35R21 tire height is 705 millimeters or 27.8 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
27.8"

245/35R21 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. 245/35R21 tire sidewall is 86 millimeters or 3.4 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 3.4" are considered low profile. Lower sidewall height, commonly seen in performance tires, generally enhances handling and steering response by reducing flex and deformation under stress. This results in a firmer ride quality and increased stability at higher speeds, making them suitable for sports and performance vehicles.

Sidewall Height
3.4"

245/35R21 Circumference

Tire circumference is the total distance around the outer edge of the tire. 245/35R21 tire has a circumference of 2214 millimeters or 87.3 inches.

Tires with a circumference of 87.3 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.

245/35R21 Circumference
Tire Circumference
87.3"

245/35R21 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. 245/35R21 tire makes 452 revolutions per kilometer or 726 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 245/35R21 tire models

Listed below are most affordable tire models available in 245/35R21 tire size.

Shop more 245/35R21 tires with tire finder.

What is 245/35R21 in inches?

When converted to inches, 245/35R21 tire size is equivalent to 27.8x9.6R21. 27.8 inches indicate the tire diameter, 9.6 inches represent tread width, and 21 inches is the diameter of a rim the tire can be mounted on.

Learn more about 245/35R21 in inches conversion.

245/35R21 Vehicle Fitment

There are 12 vehicle models that use 245/35R21 as an original equipment tire size. It's important to consult your vehicle's owner manual or a tire fitment guide specific to your car model to ensure this tire size is compatible with your vehicle. Vehicle manufacturers recommend specific tire sizes to ensure optimal performance and safety.

Select your vehicle model for its OEM tire size configuration.

What are replacement sizes for 245/35R21 tire?

245/35R21 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 245/35R21 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
255/35R21 0.9%
HL245/35R21 0%
255/30R21 -2.6%
235/30R22 -0.6%
245/30R22 0.3%
255/30R22 1.1%

What wheels can 245/35R21 tire be mounted on?

245/35R21 tires are generally approved to be mounted on 8" to 9.5" wide wheels. The following wheel sizes can be used:

  • 21x8
  • 21x8.5
  • 21x9
  • 21x9.5

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.

245/35R21 Tire Size Comparison Chart

Below is a comparison chart where we compare 245/35R21 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
245/35R21 vs 245/40R21 3.4%
245/35R21 vs 285/45R21 11.9%
245/35R21 vs 285/35R21 4%
245/35R21 vs 355/25R21 0.9%
245/35R21 vs 285/40R21 7.9%
245/35R21 vs 325/30R21 3.4%
245/35R21 vs 315/40R21 11.3%
245/35R21 vs 295/35R21 4.8%
245/35R21 vs 295/40R21 9.1%
245/35R21 vs 315/35R21 6.8%
245/35R21 vs 285/30R21 0%
245/35R21 vs 295/30R21 0.9%
245/35R21 vs 315/30R21 2.6%
245/35R21 vs 275/50R21 14.8%
245/35R21 vs 275/45R21 10.8%
245/35R21 vs 305/30R21 1.7%
245/35R21 vs 275/35R21 2.8%
245/35R21 vs 265/45R21 9.4%
245/35R21 vs 265/35R21 2%
245/35R21 vs 275/30R21 -0.9%
245/35R21 vs 265/40R21 5.7%
245/35R21 vs 255/50R21 11.9%
245/35R21 vs 275/40R21 6.8%
245/35R21 vs 255/40R21 4.5%
245/35R21 vs 255/35R21 0.9%
245/35R21 vs 315/30R22 6.2%
245/35R21 vs LT325/50R22 25.4%
245/35R21 vs 325/35R22 11.6%
245/35R21 vs LT285/55R22 23.7%
245/35R21 vs LT285/50R22 19.7%
245/35R21 vs 255/30R22 1.1%
245/35R21 vs 305/45R22 18.2%
245/35R21 vs 295/25R22 0.3%
245/35R21 vs 295/30R22 4.5%
245/35R21 vs 265/35R22 5.7%
245/35R21 vs 275/35R22 6.5%
245/35R21 vs 275/40R22 10.5%
245/35R21 vs 275/45R22 14.5%
245/35R21 vs 275/50R22 18.4%
245/35R21 vs 285/35R22 7.7%
245/35R21 vs 285/40R22 11.6%
245/35R21 vs 285/30R22 3.7%
245/35R21 vs 285/45R22 15.6%
245/35R21 vs 295/40R22 12.8%
245/35R21 vs 305/40R22 13.9%
245/35R21 vs 265/40R22 9.4%

All listed guides, data and/or calculations are for informational purposes only. TireSizes.com does not warrant or make any representations regarding the accuracy of or the results of the use of this information.