285/70r18 In Inches – Tire Size, Rim Fitment & Best Tires

The 285/70R18 tire has an overall diameter of approximately 33.7 inches, a section width of roughly 11.2 inches, and is designed to be mounted on an 18-inch diameter rim. The equivalent tire size in the high flotation system is 33.7×11.2R18.

285 70r18 In Inches

What does 285/70r18 Tire mean?

If the number 285/70r18 seems like it’s in some sort of vehicular hieroglyphics to you, fear not! We’re about to turn this tire twister into a piece of cake. Let’s break down this mysterious code in a simple table.

Tire NumberIts Explanation
285This is the tire’s width in millimeters. The width is measured from sidewall to sidewall. A higher number means a wider tire.
70This represents the aspect ratio of the tire. It’s a percentage that tells you the height of the tire’s cross-section in relation to its width. In this case, the height is 70% of the tire’s width.
R“R” stands for radial construction. This is the most common tire construction method today, where the tire’s cord plies are arranged at 90 degrees to the direction of travel.
18This number indicates the wheel diameter. The tire is designed to fit on a wheel with an 18-inch diameter.

What is 285/70r18 Tire in inches?

To help you understand the tire size in inches, we’re going to crunch some numbers. You’re about to embark on an exciting journey from the land of millimeters to inches, so buckle up!

Before we proceed, let’s go over a simple conversion rate: 1 inch equals approximately 25.4 millimeters. Hold on to this number – it’s going to be our magic key.

Here’s a table that will shed some light on the tire’s size in both inches and millimeters.

Tire Diameter33.7855.4
Section Width11.2285
Rim Height18457.2
Sidewall Height7.9200
Revolutions600 per mile372.82 per km

A Deeper Dive into the 285/70r18 Tire Specifications

Now that we’ve demystified the basics of the 285/70r18 tire size, it’s time to take a deeper dive into its specifications. Buckle up, my fellow tire enthusiasts, as we explore the fascinating world of tire width, height, sidewall height, rim diameter, and tire circumference!

Tire Width of 285/70r18

The tire width of 285/70r18 is a beefy 285 millimeters or approximately 11.2 inches. Just imagine the road-hugging power this width provides! It’s like having a set of tank treads on your vehicle, ready to conquer any terrain with confidence. Whether you’re cruising down the highway or tackling off-road adventures, the generous width of this tire ensures stability and a commanding presence.

Tire Height of 285/70r18

As we move on to tire height, the 285/70r18 stands tall with a diameter of 33.7 inches. That’s right, folks! This tire is no shrinking violet; it’s a towering force to be reckoned with. With a height like this, you can navigate over obstacles with ease and enjoy enhanced ground clearance for your adventurous endeavors. Plus, the added height gives your vehicle a bold and rugged stance, turning heads wherever you go.

Sidewall Height of 285/70r18

Ah, the sidewall height, a crucial aspect of tire size that affects both aesthetics and performance. The 285/70r18 boasts a sidewall height of 7.9 inches, thanks to its 70% aspect ratio. This sidewall height strikes the perfect balance between comfort and responsiveness. It provides just enough flexibility to cushion your ride, absorbing those pesky potholes and bumps in the road, while still maintaining the necessary rigidity for precise handling and control.

Rim Diameter for 285/70r18

Let’s not forget about the rim diameter, the essential companion to our tire’s mighty dimensions. The 285/70r18 tire size is specifically designed to snugly fit an 18-inch rim. It’s a match made in automotive heaven, ensuring optimal compatibility and a seamless union between tire and wheel. So, when you’re shopping for rims to accompany your 285/70r18 tires, make sure you choose the right diameter to unleash their full potential.

Tire Circumference of 285/70r18

Last but not least, let’s talk about the tire circumference. Clocking in at approximately 105.8 inches, the 285/70r18 offers an impressive journey with every revolution. This circumference not only affects your speedometer accuracy but also influences your vehicle’s gearing and overall driving experience. So, when you’re hitting the open road, remember that each revolution of your 285/70r18 tires is a small victory in your tire’s quest for traction and performance.

What are the Best 285/70r18 Tires?

When it comes to finding the best 285/70r18 tires, you want a winning combination of performance, durability, and off-road prowess. After extensive research and tire-surfing adventures, I’ve narrowed down the top 3 picks for your consideration. So, fasten your seatbelts, and let’s dive into the world of exceptional tire options!

1 – Nitto Ridge Grappler All-Season Radial Tire – 285/70R18 127Q

Description: The Nitto Ridge Grappler is a true all-season warrior that effortlessly treads the line between on-road comfort and off-road dominance. With its aggressive yet functional design, this tire excels in both dry and wet conditions, offering superior traction and handling. Its rugged sidewall construction provides excellent protection against cuts and abrasions, ensuring durability during intense off-road escapades. Get ready to conquer any terrain with the Nitto Ridge Grappler!

Key Features:

  • Dual sidewall design for added style and protection
  • Balanced performance on and off-road
  • Stone ejectors to prevent gravel retention
  • Variable pitch tread pattern for reduced road noise


  • Excellent traction on diverse surfaces
  • Long-lasting tread life
  • Impressive sidewall protection
  • Low road noise for a comfortable ride


  • Slightly higher price point
  • Limited winter performance compared to dedicated winter tires

Final Recommendation: If you’re seeking a versatile tire that can handle all-season adventures with style and grit, the Nitto Ridge Grappler is an excellent choice. Its blend of on-road comfort and off-road capability makes it a true all-rounder.

2 – Toyo Tire Open Country M/T Mud-Terrain Tire – 285/70R18LT 127Q

Description: When the going gets tough, the Toyo Open Country M/T steps up to the challenge. Designed for extreme off-road enthusiasts, this tire is a mud-slinging beast that laughs in the face of rough terrains. Its aggressive tread pattern provides unrivaled traction in mud, dirt, and rocky surfaces, while the durable construction ensures it can withstand the harshest conditions. Dominate the off-road trails with the Toyo Open Country M/T!

Key Features:

  • Deep tread blocks for optimal off-road traction
  • Stone and mud ejectors for enhanced durability
  • Durable sidewall construction for added protection
  • Excellent self-cleaning properties


  • Unmatched off-road traction
  • Exceptional durability for rugged terrains
  • Reliable performance in extreme conditions
  • Strong sidewall for enhanced puncture resistance


  • Increased road noise compared to highway tires
  • Slightly reduced fuel efficiency

Final Recommendation: If your heart yearns for off-road adventures and mud-slinging fun, the Toyo Open Country M/T is the tire for you. Its aggressive design and uncompromising performance will make your off-road escapades unforgettable.

3 – Nitto Ridge Grappler All-Terrain Radial Tire – LT285/70R18 127Q

Description: The Nitto Ridge Grappler All-Terrain is the perfect companion for drivers seeking a balance between on-road comfort and off-road capability. With its hybrid design, this tire offers a smooth and quiet ride on paved roads while still delivering the toughness needed for off-road excursions. Its unique tread pattern provides excellent traction in various conditions, making it a reliable choice for daily drivers and weekend adventurers.

Key Features:

  • Optimized siping and tread blocks for enhanced traction
  • Reinforced shoulder grooves for off-road stability
  • Variable pitch tread pattern for reduced noise
  • Durable construction for increased puncture resistance


  • Smooth and comfortable ride on paved roads
  • Reliable performance in light off-road conditions
  • Low road noise for a peaceful drive
  • Good tread life and durability


  • Not suitable for extreme off-road terrains
  • Limited winter performance in icy conditions

Final Recommendation: If you’re seeking a tire that strikes a harmonious balance between on-road comfort and light off-road capability, the Nitto Ridge Grappler All-Terrain is an excellent choice. It provides the versatility you need for everyday driving with a touch of off-road spirit.

FAQ’s About 285/70r18 Tires

Tires can be a source of confusion, especially when you’re dealing with a specific size like the 285/70r18. But worry not, my fellow tire enthusiasts, as I’ve gathered the most frequently asked questions about this tire size and I’m here to shed some light on the subject.

What vehicles use 285/70r18 Tires?

The 285/70r18 tire size is commonly found on a variety of trucks, SUVs, and off-road vehicles. Its robust dimensions and rugged capabilities make it a popular choice among enthusiasts who enjoy both on-road and off-road adventures. You can often spot this tire size on vehicles such as the Ford F-150, Chevrolet Silverado, Jeep Wrangler, Toyota 4Runner, and many more. So, if you’re looking to upgrade your vehicle’s tires to the 285/70r18, chances are you’ll find a suitable fit for your ride.

How many revolutions per mile does a 285/70r18 have?

The number of revolutions per mile for a 285/70r18 tire can vary depending on various factors such as the tire’s design, tread depth, and vehicle weight. On average, a 285/70r18 tire will complete approximately 600 revolutions per mile. It’s worth noting that factors like tire pressure, load, and driving habits can affect the actual number of revolutions. So, keep those tires properly inflated and enjoy the smooth ride while racking up those revolutions!

Price of 285/70r18 Tires

When it comes to the price of 285/70r18 tires, it’s essential to consider various factors such as brand, tire type, and overall quality. As of the current market conditions, you can expect prices to range from around $200 to $400 per tire. Keep in mind that premium brands and specialized off-road tires tend to be at the higher end of the price spectrum. However, investing in high-quality tires can provide you with improved performance, longevity, and peace of mind. Remember, your tires are the only thing connecting you to the road, so it’s worth prioritizing quality and safety.

What kind of rim does a 285/70r18 tire fit on?

A 285/70r18 tire is designed to fit on an 18-inch rim. It’s crucial to ensure that the rim width is appropriate for this tire size to ensure proper fitment and optimal performance. Typically, a rim width ranging from 8.5 to 10 inches is recommended for the 285/70r18 tire. It’s always a good idea to consult your vehicle’s manufacturer specifications or consult with a tire professional to ensure that your chosen rim is compatible with this tire size.

How much air should be in a 285/70r18 tire?

Proper tire inflation is essential for both safety and performance. For a 285/70r18 tire, the recommended tire pressure can vary depending on the vehicle manufacturer’s specifications. However, as a general guideline, you can typically aim for a tire pressure between 35 to 40 psi (pounds per square inch). It’s important to consult your vehicle’s owner’s manual or the tire placard located on the driver’s side door jamb for the manufacturer’s recommended tire pressure. Regularly check and adjust your tire pressure to ensure optimal handling, fuel efficiency, and tire longevity.

What is a 285/70r18 equivalent to?

If you’re looking for alternative tire sizes that are equivalent to a 285/70r18, there are a few options to consider. One common equivalent is the 33×11.50r18 tire size. It offers a similar overall diameter and width, making it a suitable alternative for the 285/70r18. Additionally, the 305/65r18 tire size is also comparable, with a slightly wider width and similar overall diameter.

However, it’s important to note that any change in tire size may impact your vehicle’s speedometer accuracy, handling characteristics, and overall performance. Consult with a tire professional or refer to your vehicle’s manufacturer specifications for guidance on suitable alternative tire sizes.

Comparison with Similar Tires

When it comes to tire sizes, finding the right fit for your vehicle can be quite the adventure. To help you make an informed decision, let’s compare the 285/70r18 tire size with a range of similar options. Buckle up and get ready for a tire-tastic showdown!

285/70r18 vs 285/65r18

The 285/70r18 and 285/65r18 tire sizes have a lot in common, but there are some key differences to consider. The 285/70r18 offers a wider tread and a taller sidewall, making it better suited for off-road adventures and providing enhanced ground clearance. On the other hand, the 285/65r18 offers a slightly lower profile and may provide a smoother and more comfortable ride on paved roads. Consider your driving preferences and terrain to determine which size aligns with your needs.

285/70r18 vs 275/70r18

When comparing the 285/70r18 and 275/70r18 tire sizes, it’s important to note that the first number represents the width of the tire. The 285/70r18 is wider than the 275/70r18, offering more traction and stability, particularly on off-road terrain. However, the 275/70r18 may provide better fuel efficiency and a slightly smoother ride due to its narrower profile. Consider your priorities and driving conditions to choose the size that suits you best.

285/70r18 vs 295/70r18

The 285/70r18 and 295/70r18 tire sizes are quite similar, but the devil is in the details. The 295/70r18 is wider than the 285/70r18, providing increased traction and a more aggressive look. However, the wider size may result in slightly reduced fuel efficiency and a potential increase in road noise. If you crave that extra bit of grip and a more commanding presence, the 295/70r18 might be the tire size for you.

285/70r18 vs 285/75r18

In the battle of the 285/70r18 versus the 285/75r18, we have two closely matched contenders. The main difference lies in the tire’s sidewall height, with the 285/75r18 being slightly taller. This taller sidewall can offer additional ground clearance and a more rugged appearance. However, keep in mind that the 285/75r18 might have a minor impact on speedometer accuracy. Consider your desired look and the potential trade-offs when making your choice.

285/70r18 vs 33×12.5r18

When comparing the 285/70r18 with the 33×12.5r18, we’re looking at two different measurement systems. The 285/70r18 is a metric size, while the 33×12.5r18 is an imperial size. The 33×12.5r18 offers a wider tread and a taller overall diameter, providing a more aggressive off-road look and improved traction. However, keep in mind that the 33×12.5r18 may require modifications to your vehicle’s suspension and fender clearance. Choose the size that aligns with your desired performance and consider any necessary vehicle modifications.

285/70r18 vs 275/65r18

The 285/70r18 and 275/65r18 tire sizes offer slightly different characteristics. The 285/70r18 has a wider tread, which can provide better traction and stability, particularly in off-road situations. The 275/65r18, on the other hand, offers a slightly lower profile, resulting in a smoother and more comfortable ride on paved roads. Consider your driving preferences and the types of terrain you encounter to determine which size is the best fit for you.

285/70r18 vs 285/70r17

In this showdown, we’re comparing the 285/70r18 with the 285/70r17. The key difference here is the rim diameter, with the 285/70r18 designed to fit an 18-inch rim and the 285/70r17 fitting a 17-inch rim. The larger rim diameter of the 285/70r18 can provide better brake clearance and a more aggressive appearance. However, keep in mind that tire options may vary between the two sizes, so ensure the availability of your preferred tire model in your chosen size.

285/70r18 vs 265/65r18

The 285/70r18 and 265/65r18 tire sizes offer distinct characteristics. The 285/70r18 is wider and has a taller sidewall, providing enhanced traction and ground clearance for off-road adventures. The 265/65r18, with its narrower width and lower profile, may offer a smoother and more comfortable ride on paved roads, along with potential fuel efficiency benefits. Consider your driving priorities and the types of terrain you encounter to determine the best fit for your needs.

285/70r18 vs 285/75r17

In this comparison, we have the 285/70r18 versus the 285/75r17. The primary difference between these sizes lies in the rim diameter, with the 285/70r18 designed for an 18-inch rim and the 285/75r17 for a 17-inch rim. The larger rim diameter of the 285/70r18 may offer better brake clearance and a more aggressive appearance. Consider your rim size compatibility and the availability of tires in your desired size when making your choice.

285/70r18 vs 265/70r18

The 285/70r18 and 265/70r18 tire sizes have some notable distinctions. The 285/70r18 is wider and has a taller sidewall, providing enhanced traction and ground clearance. The 265/70r18, with its narrower width and lower profile, may offer a smoother and more comfortable ride on paved roads, along with potential fuel efficiency benefits. Consider your driving preferences and the types of terrain you encounter to determine the best fit for your needs.


After exploring the various tire options, specifications, and comparisons, it’s time to wrap things up with a final recommendation. Based on the information provided, the best tire size for you ultimately depends on your specific driving needs, preferences, and the type of vehicle you own. Consider factors such as on-road comfort, off-road capability, tread life, and budget when making your decision.

Remember to choose tires from reputable brands known for their quality and performance. Prioritize safety and ensure that the tire size you select is compatible with your vehicle’s specifications.

Consult with tire professionals, read customer reviews, and consider your own driving habits to make an informed choice. Ultimately, the perfect tire size for you will enhance your driving experience, provide confidence on the road, and tackle any adventure that comes your way.

Safe travels and happy tire hunting!