305/45r17 In Inches – Tire Size, Rim Fitment & Best Tires

The 305/45R17 tire has an overall diameter of approximately 27.8 inches, a section width of roughly 12 inches, and is designed to be mounted on a 17-inch diameter rim. The equivalent tire size in the high flotation system is 27.8x12R17.

305 45r17 In Inches

What does 305/45r17 Tire mean?

Tire NumberIts Explanation
305The first number in the tire size denotes the tire’s width. In the case of 305/45r17, the width of the tire is 305 millimeters.
45The second number (45) is the aspect ratio, which describes the height of the tire’s sidewall as a percentage of the width. Therefore, 45% of 305 mm represents the height of the sidewall.
RThis letter stands for ‘Radial,’ which refers to the construction of the tire. In a radial tire, the cord plies are arranged at 90 degrees to the direction of travel, providing more flexibility and better handling.
17The final number is the wheel diameter. Thus, the tire is designed to fit on a 17-inch wheel.

What is 305/45r17 Tire in Inches?

Before we jump into the table of conversions, keep in mind that tire measurements are traditionally done in millimeters. However, for those of us who live and breathe in the world of inches, fret not! Below is a conversion table, where you’ll find the 305/45r17 tire size translated into the world of inches.

Tire Diameter27.8 inches706.12 mm
Section Width12 inches305 mm
Rim Height17 inches431.8 mm
Sidewall Height5.4 inches137.25 mm
Circumference87.4 inches2219.96 mm
Revolutions725 rev/mile450 rev/km

The measurements provided are approximate values calculated based on the tire’s aspect ratio and width. Remember, the actual dimensions might vary slightly based on the specific tire model and manufacturer.

By now, you might be feeling like a tire size guru, capable of impressing your mechanic with your newfound knowledge. But before you run off to flaunt your tire expertise, remember that having the right tire size is just half the story. It’s equally important to choose a high-quality tire that’s well-suited to your driving conditions. After all, your tires are the only part of your vehicle that actually touch the ground – so make them count!

A Deeper Dive into the 305/45r17 Tire Specifications

Now that we’ve covered the basics of the 305/45r17 tire size, let’s take a closer look at some specific tire specifications. Get ready to dive into the fascinating world of tire width, height, sidewall, rim diameter, and circumference. Buckle up, folks, because we’re about to embark on a thrilling tire adventure!

Tire Width of 305/45r17

The tire width of the 305/45r17 is a hefty 305 millimeters, which is roughly equivalent to 12 inches. Just imagine the sheer girth of these tires! With such a substantial width, you can be sure that your vehicle will have a solid grip on the road, providing stability and confidence during those adrenaline-pumping turns. It’s like strapping on a pair of Hulk-sized boots for your car!

Tire Height of 305/45r17

Now, let’s talk about the tire height of the 305/45r17. This measurement is determined by the aspect ratio, which in this case is 45%. What does that mean for you? Well, it means that the tire’s sidewall height is approximately 45% of its width. In the case of our 305/45r17 tire, that translates to a sidewall height of around 5.4 inches (137.25 mm). So, not only do these tires have impressive width, but they also have a beefy height that adds an extra dose of ruggedness and presence to your ride. Prepare to command attention on the road!

Sidewall Height of 305/45r17

Ah, the sidewall height – the unsung hero of tire specifications! The sidewall height of the 305/45r17 tire is a key factor in determining the tire’s overall performance. With a sidewall height of 5.4 inches (137.25 mm), these tires strike a perfect balance between providing a comfortable ride and maintaining precise handling. So, whether you’re tackling city streets or conquering off-road trails, you can trust that these tires will keep you in control, even when the going gets tough. It’s like having your own personal tire bodyguard!

Rim Diameter for 305/45r17

Now, let’s shift our attention to the rim diameter for the 305/45r17 tire. These bad boys are designed to fit snugly on a 17-inch wheel. The rim diameter plays a crucial role in ensuring proper tire fitment and compatibility. So, if you’re eyeing those stylish 17-inch rims for your vehicle, the 305/45r17 tires will slide right on like a glove, ready to take your ride to the next level of awesomeness!

Tire Circumference of 305/45r17

Last but not least, let’s talk about the tire circumference of the 305/45r17. Clocking in at approximately 87.4 inches (2219.96 mm), these tires boast an impressive circumference. Why does this matter, you ask? Well, the tire circumference affects several aspects of your driving experience, including speedometer accuracy and gear ratios. So, with the 305/45r17 tires, you can rest assured that your speedometer will be on point, and your gear changes will be as smooth as butter. It’s all about precision, my friends!

What are the Best 305/45r17 Tires? Top Picks for Unmatched Performance!

When it comes to choosing the best tires for your 305/45r17 size, we understand that you’re seeking nothing but the crème de la crème. Look no further! We’ve scoured the tire market to bring you the top three picks that will take your driving experience to a whole new level. From gripping the pavement to unleashing your inner speed demon, these tires have got you covered.

1 – P305/45R17 102W NITTO NT555RII BW

Description: The P305/45R17 102W NITTO NT555RII BW is a high-performance tire designed to satisfy the cravings of speed enthusiasts. With its aggressive tread pattern and advanced construction, it offers exceptional traction and precise handling, ensuring a thrilling driving experience on both the street and the track.

Key Features:

  • High-performance compound for improved grip and responsiveness
  • Wide circumferential grooves for enhanced wet traction
  • Reinforced sidewalls for stability during high-speed maneuvers
  • Variable pitch tread design for reduced road noise


  • Excellent dry and wet traction
  • Impressive cornering capabilities
  • Enhanced stability at high speeds
  • Low road noise for a comfortable ride


  • Not suitable for snowy or icy conditions
  • Slightly stiffer ride compared to standard tires

Final Recommendation: If you crave exhilarating speed and precise handling, the P305/45R17 102W NITTO NT555RII BW is the tire for you. It strikes the perfect balance between performance and comfort, making it an ideal choice for sports car enthusiasts and spirited drivers.

2 – Mickey Thompson ET Street R Racing Radial Tire – P305/45R17

Description: The Mickey Thompson ET Street R Racing Radial Tire is engineered for the ultimate drag racing experience. This tire is designed to deliver maximum traction on the strip, allowing you to unleash the full potential of your high-performance vehicle. Its sticky compound and specialized tread pattern make it a top choice for drag racing enthusiasts.

Key Features:

  • Soft compound for superior traction off the line
  • Polyester-ply sidewalls for improved stability during launches
  • Radial construction for enhanced ride comfort
  • Proven performance on the drag strip


  • Exceptional traction for powerful launches
  • Consistent performance on the drag strip
  • Durable construction for repeated use
  • Smooth and comfortable ride on the street


  • Not recommended for wet conditions
  • Limited tread life due to soft compound

Final Recommendation: If you live for the adrenaline rush of drag racing, the Mickey Thompson ET Street R Racing Radial Tire is your ticket to the winner’s circle. Its outstanding traction and proven performance make it a top choice for serious drag racers who demand the best.

Frequently Asked Questions About 305/45r17 Tires – Your Burning Tire Queries Answered!

We understand that when it comes to tires, you may have a few burning questions. Fear not, fellow tire enthusiasts! We’ve compiled a list of frequently asked questions about 305/45r17 tires to shed some light on these intriguing rubber companions. So, sit back, relax, and let’s dive into the wonderful world of tire knowledge!

Q: What vehicles use 305/45r17 Tires?

The 305/45r17 tire size is typically found on high-performance vehicles, sports cars, and muscle cars. It’s the tire of choice for those seeking a perfect balance between width, height, and performance. You’ll often spot this size on vehicles like the Chevrolet Camaro, Ford Mustang, Dodge Challenger, and other exhilarating rides that demand the utmost grip and control on the road.

Q: How many revolutions per mile does a 305/45r17 have?

On average, a 305/45r17 tire completes approximately 725 revolutions per mile (450 revolutions per kilometer). This measurement can vary slightly depending on the specific tire model, tread wear, and road conditions. So, buckle up and get ready for some tire-spinning fun!

Q: What is the price of a 305/45r17 tire?

The price of a 305/45r17 tire can vary depending on several factors, including the brand, model, performance rating, and retailer. On average, you can expect to invest anywhere between $200 to $400 per tire. Remember, high-performance tires often come with a higher price tag due to their advanced technologies and superior handling capabilities. It’s a small price to pay for the thrill they deliver!

Q: What kind of rim does a 305/45r17 tire fit on?

A 305/45r17 tire is designed to fit on a 17-inch rim diameter. It’s important to ensure that the rim width and offset are suitable for this tire size to ensure a proper fitment and optimal performance. Consult your vehicle’s manufacturer guidelines or reach out to a tire specialist to select the right rim specifications for your 305/45r17 tires. Remember, a good fit is key to unlocking the full potential of your tires!

Q: How much air should be in a 305/45r17 tire?

Maintaining the proper tire pressure is essential for optimal performance and safety. For a 305/45r17 tire, the recommended tire pressure typically falls within the range of 30 to 35 PSI (pounds per square inch). However, it’s always best to refer to your vehicle’s owner’s manual or the tire manufacturer’s recommendations for the specific tire model you have. Regularly check your tire pressure and make adjustments as necessary to ensure a smooth and safe driving experience.

Q: What is a 305/45r17 equivalent to?

The 305/45r17 tire size can be roughly equivalent to other sizes, depending on the aspect ratio and overall diameter. Some comparable sizes include:

  • 295/45r17
  • 315/40r17
  • 325/40r17

However, keep in mind that these sizes may have slight variations in width, height, and load capacity. Always consult with a tire specialist or refer to your vehicle’s specifications to determine the most suitable tire size for your needs.

Comparison with Similar Tires

305/45r17 vs 315/35r17

When it comes to comparing tire sizes, it’s essential to consider the impact on your vehicle’s performance and overall driving experience. Let’s take a look at how the 305/45r17 stacks up against the 315/35r17.

The 305/45r17 tire offers a wider footprint, measuring 305 millimeters in width, compared to the 315/35r17, which has a narrower width of 315 millimeters. This means that the 305/45r17 tire provides more stability and grip on the road, making it an excellent choice for high-performance vehicles that demand precise handling.

On the other hand, the 315/35r17 tire has a lower profile with a lower aspect ratio, resulting in a shorter sidewall. This design enhances cornering capabilities and improves steering response, making it an ideal choice for sports cars that prioritize agility and quick maneuverability.

Ultimately, the decision between the 305/45r17 and the 315/35r17 depends on your driving preferences and vehicle characteristics. If you prioritize stability and traction, the 305/45r17 is a solid option. However, if you’re seeking enhanced cornering performance and a more aggressive look, the 315/35r17 might be the better fit for your needs.

305/45r17 vs 315/50r17

Let’s dive into another comparison, this time between the 305/45r17 and the 315/50r17 tire sizes.

The 305/45r17 tire boasts a wider footprint of 305 millimeters, while the 315/50r17 tire takes it up a notch with an even wider width of 315 millimeters. This extra width can provide improved stability and handling, especially during acceleration and cornering. If you’re looking for enhanced traction and a more planted feel on the road, the 315/50r17 might be the way to go.

However, it’s worth noting that the 315/50r17 tire has a taller sidewall due to its higher aspect ratio. This taller sidewall can offer additional comfort by absorbing bumps and irregularities on the road, resulting in a smoother ride. So, if you prioritize a more cushioned driving experience, the 315/50r17 tire size might be the better choice for you.


After exploring the specifications, tire size conversions, top picks, and comparisons, it’s time to draw a conclusion.

For the 305/45r17 tire size, we’ve learned that it offers a robust combination of width, height, and performance. It’s a tire size often found on high-performance vehicles and muscle cars, delivering excellent traction and stability. Whether you’re looking to dominate the streets or unleash your inner speed demon on the track, the 305/45r17 will satisfy your craving for performance and precision.

When it comes to tire recommendations, it ultimately depends on your driving preferences, vehicle characteristics, and specific needs. However, based on the information provided, we can confidently recommend the P305/45R17 102W NITTO NT555RII BW as a top pick for high-performance driving enthusiasts. Its exceptional grip, precise handling, and comfortable ride make it a great choice for those seeking a well-rounded tire.

Remember, always consult with a tire specialist or refer to your vehicle’s specifications to ensure the best fitment and performance for your specific needs. Choose your tires wisely, maintain them diligently, and get ready to embark on thrilling adventures with the confidence that comes from having the right set of rubber beneath you. Safe travels!