Tire Size 305/60r18 in inches

The tire size 305/60R18 is equivalent to 32.4x12R18 in inches, has a diameter of 32.4 inches (823.2 mm), a section width of 12 inches (305 mm), a wheel diameter of 18 inches (457 mm), and is approved to be mounted on 8.5-11.0 inches (215.9-279.4 mm) wide wheels. This tire size presents a harmonious combination of width, height, and rim diameter that suits a variety of vehicles, promoting optimal driving conditions.

305/60r18 in inches

This Table chart presents a holistic view of measurements in inches and millimeters, allowing for easy comprehension.

FeatureInchesMetric
Tire Diameter32.4823.2
Section Width12305
Rim Height18457
Sidewall Height7.2183
Circumference101.82586.2
Revolutions387 per km623 per mile
Rim Width Range8.5-11.0215.9 – 279.4

How Tall Is A 305/60R18 Tire?

The tire height of the 305/60R18 tire size is approximately 32.4 inches or 823.2 mm. This measurement is also known as the tire’s diameter, which directly affects your vehicle’s ride comfort, fuel efficiency, and handling characteristics. Taller tires often mean better ground clearance, making them popular for off-road vehicles and trucks.

What Is the 305/60R18 Width In Inches?

The tread width of the 305/60R18 tire size is about 12 inches or 305 mm. The width of a tire plays a crucial role in determining the contact surface between the tire and the road. A wider tread can offer improved grip and handling, especially in challenging weather conditions.

What Is the 305/60R18 Sidewall Height?

The sidewall height of the 305/60R18 tire size is approximately 7.2 inches or 183 mm. The sidewall height impacts the tire’s overall performance, ride quality, and appearance. A higher sidewall usually results in a smoother ride, absorbing more road noise and vibrations.

What Is the 305/60R18 Tire Circumference?

The circumference of the 305/60R18 tire size is approximately 101.8 inches or 2586.2 mm. This specification is relevant as it influences the speedometer reading of your vehicle. An incorrect tire circumference could lead to inaccurate speed readings.

What Is the 305/60R18 Revolutions Per Mile?

For the 305/60R18 tire size, there are approximately 623 revolutions per mile or 387 revolutions per kilometer. This measurement indicates how many times the tire will rotate in a mile or kilometer and is essential for correctly calibrating the vehicle’s speedometer and odometer.

What Is the 305/60R18 Rims Size?

The 305/60R18 tire size, the rim diameter is 18 inches or 457 mm. This tire size can fit wheel rims with widths ranging from 8.5 to 11 inches or 215.9 to 279.4 mm, respectively. Matching the tire size with the appropriate rim size is vital for optimal vehicle performance and safety.

Fitment Guide
This table will guide you on which vehicles can accommodate the 305/60R18 tire size. The range of vehicles compatible with this tire size is diverse, from light trucks, SUVs, to certain high-performance cars.

Brand NameModel
FordF-250 [1973-1977]

Replacement Tire Size
Replacement tires have to be within 3% of the total diameter of the original tire size to ensure proper vehicle function. For a 305/60R18, replacement tires should have diameters between 31.4 to 33.4 inches.

Tire SizeOverall DiameterDifference
285/60R1831.5″-2.90%
265/65R1831.5″-2.70%
245/70R1831.5″-2.70%
235/75R1831.9″-1.70%
255/70R1832.1″-1.00%
275/65R1832.1″-1.00%
285/65R1832.6″0.50%
265/70R1832.6″0.70%
375/50R1832.8″1.20%
295/65R1833.1″2.20%
275/70R1833.2″2.40%
325/60R1833.3″2.90%

Our Observation
Based on our examination, the 305/60R18 tire size is versatile, with its broad width and relatively tall stature offering excellent traction and handling.

The suitability of this tire size for various types of vehicles, including SUVs, light trucks, and some performance cars, makes it a popular choice for those seeking balanced performance and comfort.

However, as with any tire size, specific driving conditions, vehicle specifications, and personal preferences should be considered when selecting the most suitable tire.

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