245/45r17 In Inches – Tire Size, Rim Fitment & Best Tires

The 245/45R17 tire has an overall diameter of approximately 25.7 inches, a section width of roughly 9.6 inches, and is designed to be mounted on a 17-inch diameter rim. The equivalent tire size in the high flotation system is 25.7×9.6R17.

245 45r17 In Inches

What does 245/45r17 Tire mean?

Before we plunge into the depths, let’s get some basics straight. Tire sizes are a bit like super-spies; they wear numbers as their names. In our case, the super-spy is ‘245/45r17’. But what does it mean? Let’s break the code in a table.

Tire NumberIts Explanation
245This is the tire’s width from sidewall to sidewall in millimeters. Here it’s 245 mm.
45This number is the aspect ratio, meaning the height of the tire’s sidewall as a percentage of the width. So, 45% of 245 mm.
RThis letter stands for Radial, indicating the construction type of the tire. Most tires today are radial.
17Lastly, this is the wheel diameter in inches that the tire is designed to fit. In this case, 17 inches.

So, our super-spy tire is a 245mm wide, radial construction tire, with an aspect ratio of 45%, designed to fit a 17-inch wheel.

What is 245/45r17 Tire in Inches?

Now that we’ve deciphered the tire code, let’s convert it into inches because we Americans love our inches, don’t we? And hey, we’re also going to throw in millimeters because we’re an inclusive bunch, not tire-ists.

245/45r17 in Inches and Millimeters

Here’s the conversion table, where 1 inch equals approximately 25.4 millimeters.

Tire DiameterApproximately 25.68Approximately 652
Section WidthApproximately 9.64245
Rim Height17431.8
Sidewall HeightApproximately 4.34Approximately 110
CircumferenceApproximately 80.69Approximately 2049
Revolutions per MileApproximately 785N/A

Tire Diameter is calculated by adding twice the sidewall height to the rim height. Section Width is the width of the tire from one sidewall to the other. Rim Height is just our good old 17 inches, or its equivalent in millimeters. Sidewall Height is calculated as the aspect ratio percentage of the section width. Circumference is the distance around the outside of the tire, and it’s roughly calculated as π times the diameter (Pi, not apple pie, unfortunately). Revolutions per Mile is how many times a tire will revolve in one mile; handy to know when you’re planning a trip to Mars and back!

A Deeper Dive into the 245/45r17 Tire Specifications

Ah, the 245/45r17 tire! It’s like the perfect blend of performance and style, a tire that can handle the curves like a pro and make heads turn as it rolls by. Let’s take a closer look at some of its key specifications that make it so special.

Tire Width of 245/45r17

First things first, let’s talk about width. The 245 in the tire code represents the width of the tire in millimeters. In our case, it’s a width of 245 millimeters. Picture that! It’s like having the Hulk’s biceps wrapped around your wheels, providing excellent stability and grip on the road.

Tire Height of 245/45r17

Now, let’s focus on the tire’s height. The height is represented by the aspect ratio, which in our case is 45%. This means that the sidewall height of the tire is 45% of its width. So, for our 245/45r17 tire, the sidewall height can be calculated as 45% of 245 millimeters. That gives us a sidewall height of approximately 110 millimeters.

Sidewall Height of 245/45r17

Ah, the sidewall! It’s like the protector of the tire, the buffer that absorbs the bumps and keeps your ride smooth. With a sidewall height of approximately 110 millimeters, the 245/45r17 tire strikes a perfect balance between performance and comfort. It’s like having just the right amount of cushioning to keep you comfortable on long drives without sacrificing agility on those spirited corners.

Rim Diameter for 245/45r17

Let’s not forget about the rim diameter, the home where the tire rests. The 17 in the tire code refers to the diameter of the wheel in inches. In other words, it’s the size of the hole that the tire is meant to snugly fit onto. So, if you’re planning to rock the 245/45r17 tire, make sure you have a 17-inch wheel ready to welcome it. After all, it’s like finding the perfect pair of shoes that fit you like a dream.

Tire Circumference of 245/45r17

Now, let’s talk about circumference. The circumference of a tire is the distance around the outside, and it plays a significant role in various aspects of your vehicle’s performance. For the 245/45r17 tire, the approximate circumference is around 80.69 inches or 2049 millimeters. It’s like measuring the length of a roller coaster track that will take you on an exhilarating ride, whether you’re cruising on the highway or tackling twisty backroads.

Oh, the adventures you’ll have with these numbers in mind! So, whether you’re chasing the horizon on a long road trip or getting your adrenaline pumping on the racetrack, the 245/45r17 tire is ready to be your trusty companion, offering a harmonious blend of width, height, and performance.

What are the Best 245/45r17 Tires?

Now that we’ve geeked out over the technical details of the 245/45r17 tire, it’s time to reveal the cream of the crop, the top contenders that will truly elevate your driving experience. So, without further ado, here are my picks for the best 245/45r17 tires:

1. Summit Ultramax HP All-Season Tire – 245/45R17 99W

Description: The Summit Ultramax HP is a versatile all-season tire that delivers impressive performance and reliability. It’s designed to provide exceptional traction on both dry and wet surfaces, allowing you to enjoy a smooth and confident ride all year round. With its advanced tread pattern and innovative technology, this tire offers excellent handling and precise cornering. The Summit Ultramax HP is a true champion of versatility, making it a perfect choice for daily commuting, spirited drives, and even light winter conditions.

Key Features:

  • All-season performance for year-round driving
  • Enhanced traction and stability
  • Precise handling and responsive steering
  • Durable construction for long-lasting performance


  • Excellent grip on various road surfaces
  • Comfortable and quiet ride
  • Impressive tread life
  • Reliable performance in wet conditions


  • Not designed for extreme winter conditions

Final Recommendation: If you’re seeking a dependable all-season tire that excels in performance and versatility, the Summit Ultramax HP is an excellent choice. It strikes a perfect balance between comfort, traction, and durability, ensuring a confident driving experience in various weather conditions.

2. Hankook Ventus V12 evo 2 Summer Radial Tire – 245/45R17 Y

Description: The Hankook Ventus V12 evo 2 is a summer tire designed for those who crave exhilarating performance. With its high-performance tread compound and advanced construction, this tire delivers exceptional grip, precise handling, and impressive cornering capabilities. Its asymmetric tread pattern enhances stability and responsiveness, providing an invigorating driving experience. Whether you’re hitting the track or cruising along scenic routes, the Hankook Ventus V12 evo 2 will bring out the true potential of your vehicle.

Key Features:

  • Summer tire for ultimate performance
  • Enhanced grip and traction
  • Superior handling and steering response
  • High-speed stability


  • Excellent dry traction and braking performance
  • Enhanced cornering ability
  • Sporty and responsive feel
  • Stylish tread design


  • Not suitable for cold or snowy conditions
  • Tread life may be shorter compared to all-season tires

Final Recommendation: If you’re a performance enthusiast seeking the thrill of summer driving, the Hankook Ventus V12 evo 2 is a top-tier choice. Its impressive grip, precise handling, and sporty characteristics make it a tire that will truly ignite your driving passion.

3. Lexani LXUHP-207 Performance Radial Tire – 245/45R17 99W

Description: The Lexani LXUHP-207 is a performance-oriented tire that combines style, comfort, and superb handling. Its advanced silica compound and asymmetric tread design provide excellent traction and grip on both dry and wet surfaces. With its responsive steering and stability, this tire offers a smooth and controlled ride. The Lexani LXUHP-207 not only performs exceptionally but also adds a touch of elegance to your vehicle’s appearance.

Key Features:

  • Performance tire for enhanced driving experience
  • Outstanding traction in various conditions
  • Responsive steering and stability
  • Stylish and attractive sidewall design


  • Great performance on dry and wet roads
  • Comfortable and quiet ride
  • Eye-catching aesthetics
  • Good value for money


  • Tread life may be slightly shorter compared to some competitors

Final Recommendation: If you’re looking for a performance tire that combines style and comfort, the Lexani LXUHP-207 is an excellent option. With its impressive performance characteristics and sleek design, it’s sure to turn heads while delivering a confident and enjoyable driving experience.

4. Fullway HP108 All-Season High Performance Radial Tire

Description: The Fullway HP108 is a high-performance tire designed for all-season use. With its aggressive tread pattern and optimized rubber compound, it offers excellent traction and stability in both dry and wet conditions. The tire’s reinforced construction enhances durability and ensures even wear, resulting in a longer tread life. Whether you’re navigating city streets or hitting the highway, the Fullway HP108 delivers reliable performance at an affordable price point.

Key Features:

  • All-season high-performance tire
  • Reliable traction and stability
  • Durable construction for extended tread life
  • Budget-friendly option


  • Good grip on various road surfaces
  • Smooth and comfortable ride
  • Affordable price point
  • Long-lasting performance


  • Slightly reduced performance in extreme winter conditions

Final Recommendation: For those seeking a budget-friendly all-season high-performance tire, the Fullway HP108 is a solid choice. It offers reliable traction, durability, and a comfortable ride, making it an excellent value for your money.

5. Forceum Hexa-R All-Season High Performance Radial Tire

Description: The Forceum Hexa-R is a versatile all-season high-performance tire that delivers impressive performance and value. With its aggressive tread design and enhanced rubber compound, it provides excellent grip and traction on both dry and wet surfaces. The tire’s reinforced construction ensures stability and precise handling, allowing you to tackle corners with confidence. Whether you’re driving in the city or venturing on road trips, the Forceum Hexa-R delivers a balance of performance, durability, and affordability.

Key Features:

  • All-season high-performance tire
  • Enhanced grip and traction
  • Stable and responsive handling
  • Affordable pricing


  • Good performance in dry and wet conditions
  • Smooth and comfortable ride
  • Competitive pricing
  • Durable construction


  • Not ideal for extreme winter conditions

Final Recommendation: The Forceum Hexa-R is an excellent choice for those seeking a reliable all-season high-performance tire without breaking the bank. Its balanced performance, durability, and affordability make it a solid option for everyday driving needs.

FAQ’s About 245/45r17 Tires

Ah, it seems like you have a few burning questions about the mystical 245/45r17 tire. Fear not, dear reader, for I am here to quench your thirst for knowledge and provide answers to your most pressing inquiries. Let’s dive right into the fascinating world of 245/45r17 tires!

Q: What vehicles use 245/45r17 Tires?

A: The 245/45r17 tire size is a popular choice for various vehicles that crave a balance of performance and style. You can find this tire size fitted on a range of sports cars, sedans, and even some crossover SUVs. Vehicles like the BMW 3 Series, Audi A4, Mercedes-Benz C-Class, Subaru WRX, and Ford Mustang are just a few examples that may sport the mighty 245/45r17 tires. So, if you’re a proud owner of one of these vehicles, you’re in good company!

Q: How many revolutions per mile does a 245/45r17 have?

A: Ah, the sweet symphony of revolutions! The number of revolutions per mile for a 245/45r17 tire can vary slightly depending on factors like tire brand, tread design, and vehicle weight. However, on average, you can expect a 245/45r17 tire to make approximately 785 revolutions per mile. That’s a whole lot of spinning action! So, buckle up and get ready for the ride!

Q: Price of 245/45r17-inch Tires?

A: Ah, the age-old question of cost! The price of 245/45r17-inch tires can vary depending on the brand, tire model, and retailer. On average, you can expect to find a range of options starting from around $100 and going up to $200 per tire. Keep in mind that factors like tire performance, longevity, and brand reputation can influence the price. So, make sure to do your research, compare prices, and find the best value for your hard-earned dollars!

Q: What kind of rim does a 245/45r17 tire fit on?

A: Ah, the perfect match! The 245/45r17 tire size is designed to fit on a 17-inch diameter rim. So, if you’re in the market for a new set of tires with this size, ensure that you have a 17-inch rim ready to embrace them. Remember, finding the right rim for your tires is like finding the perfect dance partner—it’s all about compatibility and harmony!

Q: How much air should be in a 245/45r17 tire?

A: Ah, the breath of life for your tires! The recommended tire pressure for a 245/45r17 tire can vary depending on factors like vehicle weight, load distribution, and manufacturer specifications. As a general guideline, it’s recommended to check your vehicle’s owner’s manual or the placard on the driver’s side door jamb for the specific tire pressure recommendations. However, a typical range for a 245/45r17 tire is around 32-35 PSI (pounds per square inch). Remember, keeping your tires properly inflated is like giving them a gentle hug—it ensures optimal performance, fuel efficiency, and longevity!

Q: What is a 245/45r17 equivalent to?

A: Ah, the world of tire equivalency! If you’re ever in a bind and can’t find the exact tire size you need, fear not, for there may be equivalent options available. In the case of a 245/45r17 tire, some equivalent sizes that you can consider are 235/50r17, 255/40r17, and 225/55r17. However, it’s important to note that changing tire sizes can impact the speedometer accuracy and overall performance of your vehicle. It’s always recommended to consult with a tire professional or refer to your vehicle’s manufacturer guidelines to ensure proper fitment and performance.

Oh, the wonders of the 245/45r17 tire! These frequently asked questions have unraveled some of the mysteries surrounding this tire size. Whether you’re curious about vehicle compatibility, revolutions per mile, price, rim fitment, tire pressure, or equivalents, I hope these answers have satisfied your tire-curious soul!

Comparison with Similar Tires

Let’s roll up our sleeves and dive into some tire-to-tire action! In this section, we’ll compare the 245/45r17 tire with several similar tire sizes. Get ready for the showdown!

245/45r17 vs 245/40r17

These two tire sizes are close cousins, with just a slight difference in aspect ratio. The 245/45r17 tire has a taller sidewall (45% of width) compared to the 245/40r17 tire (40% of width). This means that the 245/45r17 tire provides a bit more cushioning and comfort, while the 245/40r17 tire offers a sportier and more responsive feel. It ultimately comes down to personal preference and the driving experience you desire.

245/45r17 vs 255/45r17

The key difference between these two tire sizes is the width. The 245/45r17 tire is 245mm wide, while the 255/45r17 tire is 255mm wide. This extra width can provide enhanced grip and stability, especially during aggressive cornering maneuvers. If you’re seeking a bit more performance and confidence in your handling, the 255/45r17 tire might be the way to go.

245/45r17 vs 225/50r17

Here, we have a trade-off between width and sidewall height. The 245/45r17 tire is wider (245mm) but has a slightly shorter sidewall (45% of width) compared to the 225/50r17 tire, which is narrower (225mm) but has a taller sidewall (50% of width). The 245/45r17 tire offers a bit more stability and a sportier feel, while the 225/50r17 tire provides a touch more comfort and sidewall flex. It’s a matter of striking the right balance for your driving preferences.

245/45r17 vs 235/45r17

These two tire sizes are quite similar, with just a slight difference in width. The 245/45r17 tire is 245mm wide, while the 235/45r17 tire is 235mm wide. This minor width difference might lead to slightly different handling characteristics, with the 245/45r17 tire potentially offering a bit more grip and stability. However, the variation is subtle, and both sizes should perform admirably in most driving conditions.

245/45r17 vs 255/40r17

Here, we have a tale of width and aspect ratio differences. The 245/45r17 tire is wider (245mm) and has a taller sidewall (45% of width) compared to the 255/40r17 tire, which is narrower (255mm) and has a shorter sidewall (40% of width). The 245/45r17 tire leans towards a balance of comfort and performance, while the 255/40r17 tire prioritizes a sportier and more aggressive feel. Choose according to your desired driving style.

245/45r17 vs 225/45r17

These tire sizes share the same width (245mm), but the key difference lies in the aspect ratio and sidewall height. The 245/45r17 tire has a taller sidewall (45% of width) compared to the 225/45r17 tire (45% of width). The 245/45r17 tire offers a touch more comfort and sidewall flex, while the 225/45r17 tire provides slightly crisper handling and a sportier character. It’s a matter of striking the right balance between ride comfort and performance.

245/45r17 vs 245/50r17

The primary difference between these two tire sizes is the aspect ratio and sidewall height. The 245/45r17 tire has a shorter sidewall (45% of width) compared to the 245/50r17 tire (50% of width). The 245/45r17 tire will provide a slightly sportier feel, with better responsiveness and stability during aggressive maneuvers. On the other hand, the 245/50r17 tire will offer a touch more comfort and absorb bumps with a bit more ease.


After diving deep into the world of the 245/45r17 tire, exploring its specifications, best tire options, and comparing it with similar sizes, it’s time to reach a conclusion. The 245/45r17 tire size strikes a fantastic balance between performance and comfort, making it a popular choice for a wide range of vehicles. Whether you’re seeking all-season versatility, exhilarating summer performance, or a mix of both, there are excellent tire options available in this size.

However, as a final recommendation, I would suggest considering the Summit Ultramax HP All-Season Tire – 245/45R17 99W. It offers exceptional performance in various weather conditions, precise handling, and a comfortable ride. With its well-rounded characteristics and reliability, it’s a tire that will truly enhance your driving experience.