305/25R20 Tires

Understanding 305/25R20 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 305/25R20 tire specs and dimensions, what vehicles come equipped with 305/25R20 tires, what are its replacement options, and where to buy 305/25R20 tires at lowest prices online.

Buy 305/25R20 Tires from $348.99

How to read 305/25R20 tire size?

305/25R20 is a Metric tire size that is commonly used on passenger and crossover vehicles.

Let us decode each aspect of 305/25R20 tire size dimensions for better understanding:

  • 305 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 305/25R20 tire is 305 millimeters.
  • 25 represents the aspect ratio of a tire. It is the ratio of the tire's sidewall height to its width. For 305/25R20 tire, the sidewall height is 25% of its tread width.
  • R denotes that tire has radial construction.
  • 20 indicates the wheel diameter in inches that the tire is designed to fit. 305/25R20 can be mounted on rims with 20 inches in diameter.

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

305/25R20 Tire Dimensions

Compare and visualize 305/25R20 tire dimensions in both inches and millimeters. Tire size calculator will help you calculate the dimensions of any tire size.

305/25R20 Section Width
12"
26"
305/25R20 Tire Side
Tire Circumference
81.6"
20"
3"
776 Revs/Mile
Metric Inches
Tire Width 305 mm 12"
Aspect Ratio 25%
Rim Diameter 508 mm 20"
Tire Diameter 660 mm 26"
Sidewall Height 76 mm 3"
Circumference 2072 mm 81.6"
Revolutions 483 per km 776 per mile

305/25R20 Tire Width

How wide is 305/25R20 tire? Tire width is the measurement of the tire's cross-section at its widest point. 305/25R20 tire is 305 millimeters or 12 inches wide.

Tires that are 305 millimeters wide come equipped on a variety of passenger cars, pickup trucks and sport utility vehicles.

Tire width of 305 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"

305/25R20 Aspect Ratio

Tire aspect ratio represents the height of the tire's sidewall as a percentage of its width. 305/25R20 tire size has an aspect ratio of 25%.

Tires with an aspect ratio of 25 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.

305/25R20 Rim Diameter

Rim diameter refers to the diameter of the wheel on which the tire is mounted, commonly measured in inches. 305/25R20 rim size is 20 inches, meaning that tire can be mounted on 20-inch wheels. 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 20 inches are equipped on a select crossover, minivan, passenger car, pickup truck, sport utility vehicle and van models.

20-inch rims are often used on high-end SUVs, light trucks, or high-performance sports cars. 20-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
20"

305/25R20 Tire Diameter

How tall is 305/25R20 tire? Tire diameter represens the total height of a tire, including the rim, when it is fully inflated and not under load. 305/25R20 diameter is 660 millimeters or 26 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"

305/25R20 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. 305/25R20 tire sidewall is 76 millimeters or 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 3" 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"

305/25R20 Circumference

Tire circumference is the total distance around the outer edge of the tire. 305/25R20 tire has a circumference of 2072 millimeters or 81.6 inches.

Tires with a circumference of 81.6 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.

305/25R20 Circumference
Tire Circumference
81.6"

305/25R20 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. 305/25R20 tire makes 483 revolutions per kilometer or 776 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 305/25R20 tire models

Listed below are most affordable tire models available in 305/25R20 tire size.

Shop more 305/25R20 tires with tire finder.

What is 305/25R20 in inches?

When converted to inches, 305/25R20 tire size is equivalent to 26x12R20. 26 inches indicate the tire diameter, 12 inches represent tread width, and 20 inches is the diameter of a rim the tire can be mounted on.

Conversion of 305/25R20 to inches involves a series of steps that translate the metric measurements of tire width, aspect ratio, and rim diameter into their inch equivalents. This conversion is crucial for understanding tire sizes in a format that may be more intuitive or necessary for specific applications, allowing for better informed decisions regarding tire selection and compatibility.

First, the width of the tire (305 mm) is converted to inches by dividing by 25.4 (since there are 25.4 millimeters in an inch). Secondly, to determine the sidewall height in inches, calculate the height of the tire's sidewall as a percentage of its width (the aspect ratio), then convert this measurement from millimeters to inches. In the case of a 305/25R20 tire, the sidewall height is 25% of 305 mm, which converts to approximately 3 inches. Lastly, to ascertain the overall diameter of the tire, sum twice the sidewall height with the diameter of the rim (already in inches). Therefore, for a 305/25R20 tire, the overall diameter is the sum of twice the sidewall height (3 x 2) plus the rim diameter (20 inches), culminating in an overall diameter of about 26 inches.

305/25R20 Vehicle Fitment

No vehicles that are equipped with 305/25R20 OEM tire size have been found in our database.

What are replacement sizes for 305/25R20 tire?

305/25R20 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 305/25R20 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
295/25R20 -0.6%

What wheels can 305/25R20 tire be mounted on?

305/25R20 tires are generally approved to be mounted on 10.5" to 11.5" wide wheels. The following wheel sizes can be used:

  • 20x10.5
  • 20x11
  • 20x11.5

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.

305/25R20 Tire Size Comparison Chart

Below is a comparison chart where we compare 305/25R20 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
305/25R20 vs LT305/55R20 27.9%
305/25R20 vs 285/45R20 15.8%
305/25R20 vs 285/50R20 20.3%
305/25R20 vs 295/40R20 12.7%
305/25R20 vs 295/45R20 17.3%
305/25R20 vs 305/30R20 4.8%
305/25R20 vs 305/35R20 9.4%
305/25R20 vs LT265/60R20 25.2%
305/25R20 vs LT285/60R20 28.8%
305/25R20 vs 295/25R20 -0.6%
305/25R20 vs 285/40R20 11.5%
305/25R20 vs 275/40R20 10.3%
305/25R20 vs LT275/65R20 31.2%
305/25R20 vs 275/45R20 14.5%
305/25R20 vs 275/50R20 18.8%
305/25R20 vs 275/55R20 22.7%
305/25R20 vs 275/60R20 27%
305/25R20 vs 285/30R20 3%
305/25R20 vs 285/35R20 7.3%
305/25R20 vs P245/50R20 14.2%
305/25R20 vs P255/50R20 15.8%
305/25R20 vs 305/50R20 23.3%
305/25R20 vs LT275/55R20 22.9%
305/25R20 vs LT275/60R20 27%
305/25R20 vs LT285/55R20 24.5%
305/25R20 vs LT285/65R20 33.2%
305/25R20 vs LT295/55R20 26.2%
305/25R20 vs LT295/60R20 30.6%
305/25R20 vs LT295/65R20 35.2%
305/25R20 vs 245/60R20 21.5%
305/25R20 vs 235/30R20 -1.5%
305/25R20 vs P275/55R20 22.7%
305/25R20 vs P275/60R20 27%
305/25R20 vs 295/30R20 3.9%
305/25R20 vs 295/35R20 8.2%
305/25R20 vs 305/40R20 13.9%
305/25R20 vs 315/30R20 5.8%
305/25R20 vs LT325/60R20 36.1%
305/25R20 vs 315/35R20 10.3%
305/25R20 vs 275/35R20 6.1%
305/25R20 vs 275/30R20 2.1%
305/25R20 vs 265/35R20 5.2%
305/25R20 vs 245/35R20 3%
305/25R20 vs 235/55R20 16.1%
305/25R20 vs 255/30R20 0.3%
305/25R20 vs 255/45R20 11.8%
305/25R20 vs 265/30R20 1.2%
305/25R20 vs 245/50R20 14.2%
305/25R20 vs 255/60R20 23.3%
305/25R20 vs 245/40R20 6.7%
305/25R20 vs 255/50R20 15.8%
305/25R20 vs 255/55R20 19.4%
305/25R20 vs 245/45R20 10.3%
305/25R20 vs 265/40R20 9.1%
305/25R20 vs 255/35R20 3.9%
305/25R20 vs 255/40R20 7.9%
305/25R20 vs 265/60R20 25.2%
305/25R20 vs 215/45R20 6.4%
305/25R20 vs 225/35R20 0.9%
305/25R20 vs 265/50R20 17.3%
305/25R20 vs 235/35R20 1.8%
305/25R20 vs 235/40R20 5.5%
305/25R20 vs 265/45R20 13%
305/25R20 vs 235/45R20 9.1%
305/25R20 vs 235/50R20 12.7%
305/25R20 vs 235/60R20 19.7%
305/25R20 vs 245/30R20 -0.6%
305/25R20 vs 295/30R21 7.7%
305/25R20 vs 285/30R21 6.8%
305/25R20 vs 305/30R21 8.6%
305/25R20 vs 305/35R21 13.2%
305/25R20 vs 245/45R21 14.1%
305/25R20 vs 285/40R21 15.3%
305/25R20 vs 255/30R21 4.1%
305/25R20 vs 245/35R21 6.8%
305/25R20 vs 355/25R21 7.7%
305/25R20 vs 325/30R21 10.5%
305/25R20 vs 315/40R21 18.9%
305/25R20 vs 315/35R21 14.1%
305/25R20 vs 245/40R21 10.5%
305/25R20 vs 255/35R21 7.7%
305/25R20 vs 255/50R21 19.5%
305/25R20 vs 295/35R21 12%
305/25R20 vs 265/40R21 12.9%
305/25R20 vs 285/45R21 19.5%
305/25R20 vs 265/45R21 16.8%
305/25R20 vs 275/30R21 5.9%
305/25R20 vs 275/50R21 22.6%
305/25R20 vs 285/35R21 11.1%
305/25R20 vs 265/35R21 8.9%
305/25R20 vs 275/45R21 18.3%
305/25R20 vs 295/40R21 16.5%
305/25R20 vs 275/40R21 14.1%
305/25R20 vs 315/30R21 9.5%
305/25R20 vs 255/40R21 11.7%
305/25R20 vs 275/35R21 9.8%
305/25R20 vs 265/30R22 8.9%
305/25R20 vs 275/50R22 26.5%
305/25R20 vs 295/25R22 7.1%
305/25R20 vs 315/30R22 13.5%
305/25R20 vs 305/45R22 26.2%
305/25R20 vs LT325/50R22 33.9%
305/25R20 vs 275/35R22 13.8%
305/25R20 vs LT285/50R22 27.9%
305/25R20 vs LT285/55R22 32.1%
305/25R20 vs 245/30R22 7.1%
305/25R20 vs 275/45R22 22.3%
305/25R20 vs 255/30R22 8%
305/25R20 vs 265/35R22 12.9%
305/25R20 vs 255/40R22 15.6%
305/25R20 vs 305/40R22 21.7%
305/25R20 vs 295/30R22 11.7%
305/25R20 vs 295/35R22 15.9%
305/25R20 vs 295/40R22 20.5%
305/25R20 vs 255/35R22 11.7%
305/25R20 vs 255/45R22 19.5%
305/25R20 vs 285/45R22 23.5%
305/25R20 vs 285/40R22 19.2%
305/25R20 vs 315/35R22 18%
305/25R20 vs 265/40R22 16.8%
305/25R20 vs 285/35R22 15%
305/25R20 vs 325/35R22 19.2%
305/25R20 vs 235/30R22 6.2%
305/25R20 vs 285/30R22 10.8%
305/25R20 vs 275/40R22 18%

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.