255/75r18 In Inches – Tire Size, Rim Fitment & Best Tires

The 255/75R18 tire has an overall diameter of approximately 32.1 inches, a section width of roughly 10 inches, and is designed to be mounted on an 18-inch diameter rim. The equivalent tire size in the high flotation system is 32.1x10R18.

What does 255/75r18 Tire mean?

This alphanumeric code isn’t as complicated as it might seem, it’s actually quite simple. Let’s break it down.

Tire numberIts Explanation
255This is the width of the tire in millimeters, measured from sidewall to sidewall.
75This is the aspect ratio of the tire, which represents the height of the sidewall as a percentage of the width. In this case, the height of the sidewall is 75% of 255 millimeters.
RThe ‘R’ stands for Radial, indicating the tire’s construction. Radial tires are the most common type you’ll find on the road today, designed for durability and performance.
18This is the wheel diameter in inches. It’s the size of the wheel that the tire is designed to fit.

Now that we’ve deciphered that code, let’s translate 255/75r18 into inches.

What is 255/75r18 Tire in inches?

255 75r18 In Inches

While the world of tires predominantly uses metric measurements, we understand that many folks prefer the familiarity of inches. Hence, let’s convert our tire size into imperial measurements.

Let’s create a table to simplify the conversion of 255/75r18 into inches and millimeters. We’ll also include some additional details to ensure you get the full picture.

Tire Diameter34.83884.86
Section Width10.04255
Rim Height18457.2
Sidewall Height7.53191.25
Revolutions579 per mile360 per km

A Deeper Dive into the 255/75r18 Tire Specifications

Now that we’ve uncovered the basics of the 255/75r18 tire size, let’s take a deeper dive into its specific measurements and explore the fascinating world of tire specifications. Buckle up, folks, because we’re about to embark on an exhilarating journey of knowledge!

Tire width of 255/75r18

The width of a tire plays a crucial role in its performance and stability. In the case of the 255/75r18 tire, we’re looking at a width of 255 millimeters. Imagine the tire stretching out before you like a wide and confident grin, ready to conquer the road with its impressive grip and handling capabilities. This width ensures ample contact with the pavement, delivering enhanced traction and control.

Tire height of 255/75r18

As we venture further into the realm of tire specifications, we encounter the tire height. For the 255/75r18 tire, the height is determined by the aspect ratio, which is 75% of the tire width. In simpler terms, picture the tire standing tall with a sidewall height of 75% of its width. This measurement is crucial for maintaining a balance between comfort and performance, offering a comfortable ride while still providing the necessary stability for your vehicle.

Sidewall height of 255/75r18

The sidewall height is an intriguing aspect of tire specifications that often gets overlooked. However, it has a significant impact on your driving experience. For the 255/75r18 tire, the sidewall height is approximately 7.53 inches (191.25 millimeters). Think of it as the tire’s protective shield, shielding your precious wheel from bumps, potholes, and road imperfections. With a sidewall height like this, your tire acts as a warrior, ready to tackle any obstacles that come its way, ensuring a smoother and more comfortable ride.

Rim diameter for 255/75r18

Ah, the rim diameter! It’s the measurement that determines whether a tire and wheel are a match made in automotive heaven. For the 255/75r18 tire, the rim diameter is 18 inches. Picture the tire confidently embracing the wheel, fitting snugly and securely, forming a perfect union of style and functionality. This size ensures proper fitment, allowing for optimal performance and handling characteristics.

Tire circumference of 255/75r18

If you’ve ever wondered about the distance your tire covers in a single revolution, wonder no more! The tire circumference is the answer to that burning question. For the 255/75r18 tire, the approximate circumference is a remarkable 109.41 inches (2778.9 millimeters). It’s like your tire has a hidden superpower, covering significant ground with each rotation. This measurement affects your speedometer accuracy, so it’s essential to ensure it matches your vehicle’s specifications for precise readings.

FAQ’s About 255/75r18 Tire

You’ve come to the right place, my curious friends! In this section, we’ll tackle some frequently asked questions about the legendary 255/75r18 tire. Buckle up and get ready for a joyride through the world of tire knowledge!

Q: What vehicles use 255/75r18 Tire?

A: Ah, the versatile 255/75r18 tire! This tire size finds its home on a variety of vehicles, adding a touch of ruggedness and performance. You can spot it on popular off-road beasts like the Jeep Wrangler, Ford F-150, and Toyota 4Runner. These vehicles embrace the 255/75r18 tire like a well-tailored suit, ensuring optimal performance and an aggressive look on and off the beaten path.

Q: How many revolutions per mile does a 255/75r18 have?

A: Revolutions per mile, huh? Well, get ready for a tire-spinning fact! The 255/75r18 tire completes approximately 579 revolutions per mile. That’s right, folks, it’s like your tire is a record player, grooving to its own beat while you cruise down the road. So sit back, relax, and let your tires serenade you with their rhythmic rotations.

Q: Price of 255/75r18 inches Tire?

A: Ah, the price tag – a factor that can make even the most stoic among us break into a cold sweat. But fear not! The price of a 255/75r18 tire can vary depending on various factors such as the brand, tire type, and overall quality. On average, you can expect to shell out anywhere from $150 to $300 per tire. Remember, investing in quality tires is like investing in a comfortable and safe ride, so consider it a worthwhile journey for your vehicle.

Q: What kind of rim does a 255/75r18 tire fit on?

A: Ah, the rim – the unsung hero that holds our tires in a loving embrace. For the 255/75r18 tire, you’ll need a rim with a diameter of 18 inches. This means you’ll need to find a match made in wheel heaven, with an 18-inch rim diameter and the perfect balance of style and functionality. So go ahead, find that rim that complements your tire like a dance partner, and get ready to turn heads on the road.

Q: How much air should be in 255/75r18?

A: Ah, the eternal quest for the perfect amount of air! When it comes to the 255/75r18 tire, the recommended tire pressure can vary depending on factors like vehicle load and driving conditions. However, as a general guideline, it’s wise to aim for a tire pressure around 35 PSI (pounds per square inch). But don’t just take my word for it, always consult your vehicle’s manual or the tire manufacturer’s recommendations for the optimal air pressure specific to your tire.

Q: What is a 255/75r18 equivalent to?

A: Oh, the world of tire equivalencies, where tire sizes come together in harmonious union! If you’re seeking an alternative to the 255/75r18 tire size, you might find solace in the 33×10.00r18 size. This tire brings similar width and height characteristics to the table, ensuring a comparable driving experience. So if you’re on the hunt for an alternative size that still delivers that rugged appeal, give the 33×10.00r18 a nod of approval.

Comparison with Similar Tires

In the vast world of tires, it’s always helpful to compare different options before making a final decision. Let’s take a look at how the 255/75r18 tire stacks up against some similar options, so you can choose the perfect tire for your vehicle and driving needs.

1. 255/70r18

The 255/70r18 tire is quite similar to the 255/75r18 in terms of width and diameter. However, it has a slightly smaller sidewall height, resulting in a slightly lower overall tire height. This difference might impact the ride comfort and ground clearance of your vehicle. If you prefer a slightly lower profile look or are looking for improved handling, the 255/70r18 could be a suitable alternative.

2. 265/70r18

If you’re seeking a bit more width and an increased tire footprint, the 265/70r18 might catch your eye. This tire offers a wider contact patch, which can enhance traction and stability, especially on challenging terrains. However, keep in mind that the wider width might slightly impact fuel efficiency and maneuverability. So, if you’re looking for a broader tire for enhanced off-road capabilities, the 265/70r18 could be a worthy contender.

3. 275/70r18

For those who crave even more width and a bolder stance, the 275/70r18 tire is worth considering. This tire offers a wider footprint, providing excellent stability and traction, especially when tackling rough or slippery surfaces. However, keep in mind that the increased width might impact fuel efficiency and potentially require modifications to your vehicle’s suspension or fender clearance. If you’re looking for a beefier tire that demands attention, the 275/70r18 could be your perfect match.


After diving deep into the specifications, comparisons, and frequently asked questions about the 255/75r18 tire, it’s time to reach a conclusion. This tire size offers a versatile combination of width, height, and rim fitment that makes it a popular choice for off-road enthusiasts and adventure seekers.

With its impressive grip, stability, and rugged appearance, the 255/75r18 tire provides an excellent balance between off-road capability and on-road performance. It fits well on a range of vehicles, including popular models like the Jeep Wrangler, Ford F-150, and Toyota 4Runner, ensuring you can unleash your inner adventurer with confidence.

However, tire selection ultimately depends on your specific driving needs and preferences. If you’re looking for a slightly lower profile or improved handling, the 255/70r18 could be a suitable alternative. On the other hand, if you desire more width and a bolder stance, the 265/70r18 or 275/70r18 might be worth considering.

Remember to consider factors like your driving style, terrain, and vehicle requirements when making your final decision. Consult with tire experts, read customer reviews, and prioritize safety and performance for the best tire experience.

So, whether you’re conquering rocky trails, embarking on a cross-country journey, or simply navigating your daily commute, choose a tire that suits your driving aspirations and ensures a smooth and secure ride.

Safe travels and happy tire hunting!