305/75r18 In Inches – Tire Size, Rim Fitment & Best Tires

The 305/75R18 tire has an overall diameter of approximately 36.8 inches, a section width of roughly 12 inches, and is designed to be mounted on an 18-inch diameter rim. The equivalent tire size in the high flotation system is 36.8x12R18.

305 75r18 In Inches

What does 305/75r18 Tire mean?

In tire parlance, the numbers 305/75r18 might seem like the combination to a safe, but I assure you, they’re not. They are just measurements. Here’s a simple table to explain this. Take out your notebooks, dear readers. It’s time to crack the code!

Tire NumberIts Explanation
305This represents the tire’s width in millimeters. In this case, it is 305mm wide.
75This is the aspect ratio. It is the height of the sidewall expressed as a percentage of the width. For our tire, it’s 75% of 305mm.
RThis letter stands for Radial, which indicates the construction type of the tire.
18This number is the diameter of the wheel (or rim) in inches that the tire is designed to fit. So, this tire fits an 18-inch rim.

Now that we’ve cracked the code, I hope you feel like a real tire agent. Remember, with great power comes great responsibility!

What is 305/75r18 Tire in inches?

Before we move on to that, let’s toast to your newfound tire knowledge. Remember, knowledge is power. But power without precision is like a car without tires – pretty useless on a road trip. So, let’s convert our newly acquired knowledge into inches, shall we?

Table for 305/75r18 in Inches and Millimeters

Now, I am going to show you how to translate this tire code into measurements we’re more familiar with. Hold on tight; this is where the rubber meets the road!

Tire Diameter~34.9887
Section Width~12305
Rim Height18457.2
Sidewall Height~9228.6
Revolutions per Mile~577~577

A Deeper Dive into the 305/75r18 Tire Specifications

Now that we’ve cracked the code and converted our measurements into inches, let’s take a deeper dive into the specifications of the illustrious 305/75r18 tire. Get ready to be amazed and dazzled by the inner workings of this rubber marvel!

Tire Width of 305/75r18

Picture this: a tire with a width of 305mm. That’s like having a tire that can give a warm, comforting embrace to the road. It provides stability, grip, and a solid footprint, ensuring you stay firmly planted on the asphalt. So, whether you’re tackling the city streets or venturing off-road, the wide width of the 305/75r18 tire has got your back, or should I say, your wheels!

Tire Height of 305/75r18

Now, let’s talk about height. The 305/75r18 tire boasts a generous aspect ratio of 75%. In simpler terms, it means the height of the tire’s sidewall is 75% of its width. This ensures that your tire has enough cushioning to handle bumps, potholes, and even the occasional off-road adventure. So, when life throws you a curveball (or a curve road), fear not, because the 305/75r18 tire is here to absorb the shocks and keep you cruising smoothly.

Sidewall Height of 305/75r18

Ah, the sidewall height, the unsung hero of tire engineering! In the case of the 305/75r18, the sidewall stands at approximately 9 inches. It’s like having a sturdy fortress protecting your tire’s precious inner workings. This height not only provides strength and durability but also contributes to the tire’s overall performance and handling. So, when you’re conquering rough terrains or showing off your maneuvering skills on the city streets, the sidewall height of the 305/75r18 tire has got your back, quite literally!

Rim Diameter for 305/75r18

Now, let’s not forget about the star of the show—the rim diameter. The 305/75r18 tire is designed to fit an 18-inch rim. It’s like finding the perfect match for your tire’s elegant dance partner. With the right rim diameter, your tire is securely fastened, ensuring optimal performance, balance, and stability. So, when you’re choosing your rims, make sure they have that perfect 18-inch flair, and your 305/75r18 tires will be eternally grateful.

Tire Circumference of 305/75r18

Ah, circumference, the measure that wraps it all up—quite literally! The 305/75r18 tire boasts a circumference of approximately 109.6 inches. That’s like circling the Earth with a tire made of pure awesomeness! This measurement plays a crucial role in various aspects of your vehicle’s performance, from speedometer accuracy to torque delivery. So, when you’re hitting the road, you can trust that the 305/75r18 tire’s circumference will keep you in perfect sync with the world around you.

FAQ’s About 305/75r18 Tire

Congratulations, my inquisitive friend! You’ve come to the section where we answer some burning questions about the legendary 305/75r18 tire. Buckle up and prepare for a tire-iffic ride!

What vehicles use 305/75r18 Tire?

Ah, the vehicles that strut their stuff on the roads with the 305/75r18 tire! You’ll often find this tire size gracing the wheels of rugged beasts, such as lifted trucks, off-road warriors, and adventure-seeking SUVs. These vehicles crave the optimal balance between size, performance, and style, and the 305/75r18 tire delivers it with panache.

How many revolutions per mile does a 305/75r18 have?

Revolutionize your understanding with this question! The 305/75r18 tire usually clocks in at approximately 577 revolutions per mile. That’s like setting off on a tire-powered merry-go-round and completing nearly 600 rotations for every mile traveled. It’s a dizzying display of tire prowess and a testament to the tire’s ability to roll you forward with efficiency and grace.

Price of 305/75r18 inches Tire?

Ah, the price tag—the eternal dance between quality and affordability. The cost of a 305/75r18 tire can vary depending on various factors, including the tire brand, model, and any additional features it may possess. However, on average, you can expect to invest in the range of $200 to $400 per tire. Remember, though, that tires are a crucial investment in your vehicle’s safety and performance, so don’t skimp on quality. Your pocket may wince a little, but your peace of mind will thank you.

What kind of rim does a 305/75r18 tire fit on?

Picture this: a 305/75r18 tire yearning for the perfect rim match. Luckily, this tire size is typically designed to fit an 18-inch rim diameter. So, if you’re in the market for new rims for your 305/75r18 tire, look for those with an 18-inch diameter, and you’ll have a harmonious pairing that will make your wheels sing in delight.

How much air should be in 305/75r18?

Ah, the tire’s breath of life—air pressure! The recommended tire pressure for a 305/75r18 tire can vary slightly depending on the specific vehicle and its load requirements. However, as a general guideline, you can aim for a range of 40 to 45 PSI (pounds per square inch). Remember to consult your vehicle’s owner’s manual or the tire manufacturer’s recommendations for the precise air pressure that will keep your 305/75r18 tire rolling smoothly and safely.

What is a 305/75r18 equivalent to?

Oh, the world of tire sizes, where equivalences can make your head spin! If you’re looking for an equivalent to the mighty 305/75r18 tire, you might find solace in the 33×12.50r18 size. While not an exact match, the 33×12.50r18 shares similar overall dimensions and characteristics, making it a worthy contender for your consideration.

Comparison with Similar Tires

Now that we’ve explored the ins and outs of the remarkable 305/75r18 tire, let’s have some tire-to-tire showdowns! In this section, we’ll compare the 305/75r18 with some similar tire sizes, so you can make an informed decision based on your needs and preferences. Get ready for some tire-slinging action!

305/65r18 vs 305/70r18

It’s the battle of the 305s! In one corner, we have the 305/65r18, and in the other corner, we have the 305/70r18. These two tire sizes are close cousins, but they do have some differences worth considering. The 305/65r18 offers a slightly lower profile with a lower aspect ratio, resulting in a sportier look and enhanced handling on the road. On the other hand, the 305/70r18 provides a taller sidewall, which translates to a more comfortable ride and improved off-road capability. So, if you’re torn between style and off-road prowess, choose the size that best aligns with your driving needs and personality.

305/35r24 vs 305/40r22

It’s time for a tire fashion face-off! In this corner, we have the 305/35r24, and in the other corner, we have the 305/40r22. These tire sizes cater to those who love big wheels and want to make a bold statement. The 305/35r24 offers a lower profile, accentuating the wheel size and delivering a sporty and aggressive appearance. Meanwhile, the 305/40r22 provides a slightly taller sidewall, offering a balance between style and ride comfort. So, whether you’re cruising the streets or turning heads at a car show, choose the size that matches your desired look and ensures a smooth and enjoyable ride.

305/75r18 vs 35×12.5r18

Let’s get down and dirty with some off-road comparisons! In one corner, we have the trusty 305/75r18, and in the other corner, we have the rugged 35×12.5r18. Both tire sizes are popular choices for off-road enthusiasts, but they do have some distinctions. The 305/75r18 offers a slightly narrower width, making it more suitable for on-road driving while still providing respectable off-road capability. On the other hand, the 35×12.5r18 embraces its wider profile, delivering enhanced off-road traction, flotation, and a more aggressive look. So, if you’re planning to tackle the wilderness, the 35×12.5r18 might be your ideal companion. But if you want a versatile tire that can handle both on and off-road adventures, the 305/75r18 could be your perfect match.


After diving into the fascinating world of the 305/75r18 tire, exploring its specifications, and comparing it with other sizes, it’s time for the ultimate recommendation. Drumroll, please!

Based on our extensive analysis, the 305/75r18 tire emerges as a formidable choice for those seeking a well-rounded tire with a balance of width, height, and performance. It excels in providing stability, handling, and versatility, whether you’re conquering city streets, venturing off-road, or embracing a mix of both. With its wide footprint and optimal sidewall height, the 305/75r18 tire is sure to deliver a comfortable and confident ride.

However, it’s essential to consider your specific needs and preferences. If you lean more towards style, consider the 305/65r18 or the 305/35r24 for a sleek and sporty look. On the other hand, if off-road adventures are your passion, the 305/70r18 or the 35×12.5r18 could be your perfect companions.

Remember, tire selection is a personal choice, and it’s crucial to align your decision with your driving style, terrain requirements, and desired aesthetics. So, take this information, weigh your options, and make an informed decision that will elevate your driving experience to new heights (or should I say, new tire treads)!

Happy tire hunting, and may the road be ever smooth and adventurous with your chosen 305/75r18 tire!