Are you stuck between the 225 70r15 vs 235 75r15 tire size and can’t really decide which one to choose for your vehicle? Then read along as this article is designed just for you.
You see, in this guide, we are going to dig deep and analyze every ins and outs of the 225 70r15 and 235 75r15 tire types and help you decide which one will be best suited for your vehicle.
So, what are you waiting for then? If you want to get rid of the confusion and get the tire that is made just for your vehicle then don’t waste any more time and jump directly into the action and know all the amazing facts that you will not find elsewhere.
225 70R15 vs 235 75R15 Tire size Comparison Table
This comparison table is designed in such a way that it will help you understand the key differences between the two tires and also enable you to make better decisions in the future. Now, let’s have a look at the comparison table given below and observe the differences carefully:
|225 70R15 Tire Size
|235 75R15 Tire Size
|Revs Per Mile
|A-Radial Ply Tire
|A-Radial Ply Tire
225 70R15 vs 235 75R15 Tire size: How Do They Differ?
As we can see there, that 235 75R15 tire has a larger contact patch than a 225 70R15 tire, so that tire comes with better traction. So, here we have to fix which type of tire we need. Now we will talk about the basic differences below.
Cross-section width or popularly known as section width is one of the key things to consider when you think of comparing 225 70r15 tires with the 235 75r15 tires.
Section width is measured from sidewall to sidewall. Knowing the perfect measurement of the section width will help you decide which tire type will serve your vehicle well.
Section width usually affects your vehicle’s traction, steering wheel response, and ride comfort. So, be extra careful, and don’t forget to fit your tire in a proper way. Otherwise, you may face serious issues with your steering and wheel response.
225 70r15 tires have a section width of 8.84 inches or 225mm. On the contrary, the 235 75r15 tires have a section width of 9.25 inches or 235mm. The difference between the two is 0.39 inches or 10mm.
In terms of the section width, the 225 70r15 tires are 4.4 % smaller than the 235 75r15 tires. This usually indicates that your 225 70r15 tires will give you slightly less traction than the 235 75r15 ones.
Sidewall height is another very important factor that you must consider before you choose a certain type of tire for your vehicle. Sidewall height is very crucial for giving you a comfortable riding experience. Moreover, it also affects the handling of your vehicle.
More sidewall height brings more flex for the vehicle. It will not give you any traction advantages but it will definitely save your wheel from bending when you hit a pothole or a curb.
In the case of a shorter sidewall, your vehicle’s steering response will be faster and your handling will be crispier. Again, a shorter sidewall helps to reduce the effective spring rates. What’s more, it saves you some extra bucks as well.
The 225 70r15 tires have a sidewall height of 6.2 inches or 158 mm. For the 235 75r15 tires, the sidewall height is 6.94 inches or 176mm. The difference between the two is 0.74 inches or 18.75mm. Percentage-wise the difference is 11.4% only.
Overall diameter is another very important aspect of your tire that you must take into consideration. The overall diameter of the tires is very crucial because it affects your vehicle’s handling a lot and offers you a very amazing experience when driving.
If your vehicle’s tire diameter is incorrect, it will hamper your vehicle’s handling, fuel economy, and overall driving experience and performance of your vehicle. So, it is not something to be taken lightly at all. For 225 70r15 tires, the overall diameter is 27.4 inches or 696 mm.
On the other hand, the overall diameter of the 235 75r15 tires is 6.94 inches or 176 mm. The difference between the two tires in terms of diameter is 1.48 inches or 37.5 mm. Percentage-wise the difference stands at 5.4% only.
Circumference of a tire refers to the distance it travels when it makes a single revolution. Your vehicle’s speedometer generally gets affected by the circumference. If the circumference of a tire is higher, it will show you inaccurate readings in the speedometer. It also affects your vehicle’s gear ratios.
The circumference of the 225 70r15 tires is around 86.08 inches or 2187mm. On the other hand, the circumference of the 235 75r15 tires is around 90.73 inches. The difference between the two is 4.64 inches or 117.81 mm. Percentage-wise the difference stands at 5.4% only.
As the circumference of the 225 70r15 tires is on the lower side, it gives correct speedometer readings. But the 235 75r15 tires have a slightly higher circumference. That’s why the speedometer readings it offers are inaccurate most of the time.
Revolutions Per Mile
Revolution per mile (RPM) means the revolvement rate of tires while covering a distance of one mile. This affects your vehicle’s fuel consumption rate. Tires having shorter lengths make need many moves to cover a single-mile distance. So, they cost you more gas.
This makes a great impact on your fuel consumption. On the contrary, tires having higher lengths need few moves to cover a single-mile distance. Thus they are fuel efficient.
For the 225 70r15 tires, the RPM rate is 736. On the other hand, for the 235 75r15 tires, the RPM rate is 698. The difference between the two RPM rates is approximately 37.63. This means that 225 70r15 tires will rotate 37-38 times more to cover a single mile.
The weight of your tires increases the overall weight of the vehicle. It becomes hard for heavier vehicles to reach the top speed. They also need more time to slow down as well. This will affect your overall fuel consumption too.
In the case of 225 70r15 tires, the typical weight is around 27.7 kg. Whereas, for the 235 75r15 tires, the typical weight is around 33.3 kg. The weight difference between the two is 5.6 kg only.
Wheel size refers to the diameter of the wheel on which the tire is usually mounted. You can use a 15-inch diameter wheel to mount your 225 70r15 tires. The same thing is also applicable to your 235 75r15 tires as well. The difference between the two is none.
Both 225 70r15 and 235 75r15 come with radial tire construction types. Radial tire construction types reduce build-up heat and offer a more comfortable riding experience. Radial tire construction types can distribute weight evenly.
For the 225 70r15 tires, the actual speed is around 100 km/h. On the other hand, the actual speed of the 235 75r15 tires is around 105.3 km/h. The difference between the two tires is 5.3 km/h which is not a lot actually.
225 70R15 vs 235 75R15 Tires- A Detailed Comparison
Here is a detailed comparison between the tire types that will surely help you decide which tire types suit your vehicle the best. Here it goes:
Compared to the 225 70r15 tires, the 235 75r15 tires offer a more compelling look. 235 75r15 tires have wider rims and wider tires which enhance the beauty of your vehicle a lot. But you will not this pleasing look in the case of the 225 70r15 tires
The Grip on Wet Pavement
In the case of the 225 70r15 tires, which are narrower compared to the 235 75r15 tires, braking on wet pavement becomes much more effective because narrower tires can remove water under the wheel easily.
But 235 75r15 tires are wider in nature and therefore can’t expel water under the wheel easily. This makes it very difficult for 235 75r15 tires to brake on wet pavements.
Road Holding Ability
Compared to the 225 70r15 tires, the 235 75r15 tires offer improved traction. The 235 75r15 tires are larger in nature thus they offer a larger rim diameter. larger rim diameters come with larger brake discs and calipers having more pistons with them.
These features help your vehicle to brake effectively while driving on dry roads. On the other hand, 225 70r15 tires are narrower in nature, and thus they don’t have any of the features that the 235 75r15 tires offer. So, the road-holding ability of the 225 70r15 tires is not as good as the 235 75r15 tires.
The Precision of Steering Response
In the case of the 225 70r15 tires, your vehicle’s steering will be high and the cornering will be good. But the same thing is not true for the 235 75r15 tires because they are wider in nature.
When you have larger tires, the height of the tire becomes larger than your vehicle’s rim diameter. This results in reduced control when cornering your vehicle on tight turnings.
The Grip on Dry Pavement
Compared to the 225 70r15 tires, the 235 75r15 tires offer better performance when it comes to the question of gripping on dry pavements. This is because wider tires have improved traction and increased contact patches on dry surfaces.
The Grip on Dirty Surfaces
As already mentioned above, wider tires can’t expert water under the wheel easily. That’s why it becomes very difficult for your vehicle to brake on wet, muddy, dirty, and slippery surfaces if your vehicle has a wider tire like the 235 75r15 ones.
On the contrary, the 225 70r15 tires, being narrower in nature, perform well when it comes to gripping on dirty and slippery surfaces.
Ride Comfort and Noise
In the case of wider tires, more and more air gets trapped inside the tire. This results in higher noise when driving. This makes your driving experience uncomfortable and intolerable as well.
The 235 75r15 tires, being wider in nature, cause more noise when driving along the road. The opposite is true for the 225 70r15 tires as they are narrower in nature. So, you get more comfort and less noise in the case of the 225 70r15 tires.
Compared to the 225 70r15 tires, the 235 75r15 tires are wider and have higher rolling resistance. This results in higher fuel consumption. But in the case of the 225 70r15 tires, the exact opposite is true.
Wider tires have higher weights which get added to the overall weight of the vehicle. It becomes very difficult for heavier vehicles to accelerate and slow down when needed. Heavier vehicles also use up more fuel as well.
The 235 75r15 tires are heavier in nature compared to the 225 70r15 tires. That is why 235 75r15 tires increase the weight of the vehicle and make it difficult to accelerate and slow down when needed. The opposite is true for the 225 70r15 tires
Wider tires have a reduced risk of breaking down and causing severe damage to the rim. The opposite is true for the narrower tires. The 235 75r15 tires are heavier in nature and thus provide durability and enhanced rim protection.
But the same thing is not true for the 225 70r15 tires. Being narrower in nature, they can’t provide sufficient protection to the rim and the tire as well. So, the chances of tearing down the tire are pretty high indeed.
Alternative Tire Size of 225/70r15 in inches
Here is a table with alternative tire sizes for a 225/70R15 in inches, including the tire size, overall diameter in inches, and the difference in diameter when compared to the original 225/70R15 size:
|Alternative Tire Size
|Overall Diameter (inches)
|Diameter Difference (inches)
225 70R15 vs 235 75R15 Tires: Pros and Cons
Performance wise both the tire types have some advantages and disadvantages and we just can’t say for certain that the 225 70r15 tires are better than the 235 75r15 ones or vice versa.
Let’s have a quick look at some of the pros and cons that both possess so that you may decide better which one suits your vehicle best.
Pros and Cons of 225 70R15 Tires
- Suitable for small vehicles
- Offers better gas mileage
- More riding comfort & less noise
- Performs better on wet & slippery surfaces
- Comes with a longer tread wear warranty of 70000 miles.
- Can’t carry heavy loads
- Has low acceleration speed
Pros and Cons of 235 75r15 Tires
- Suitable for heavy vehicles
- Can carry heavy loads
- Has high acceleration speed
- Offers high stability when accelerating
- More enhanced design
- Offers low gas mileage
- Comes with lower tread wear warranty of 60000 miles
Frequently Asked Questions
Big and small vehicle owners and drivers ask many questions regarding these two tire types. Some of the frequently asked questions regarding 225 70r15 vs 235 75r15 tire size are discussed below.
Which Tire Size Makes the Ride Smoother? 225 70R15 or 235 75R15?
The general rule of thumb is that the wider the tire the less smooth drive it offers. The 235 75r15 tires are wider in nature. So, they fail to provide a smoother driving experience.
On the other hand, 225 70r15 tires are narrower in nature, and they perform better and give a smoother driving experience.
Between The Two Tires 225 70R15 and 235 75R15, Which One Gives Better Gas Mileage?
The 235 75r15 tires are wider and have a higher rolling resistance. Being wider in length, the 235 75r15 tires create a larger contact patch with the road. That’s why they can’t provide better gas mileage.
On the other hand, the 225 70r15 tires are narrower and have a lower rolling resistance. So, they consume less gas and give better gas mileage.
Can You Use 225 70R15 and 235 75R15 Tires Interchangeably?
Yes, it is possible only when you have the same tire aspect ratio and the same rim diameter on your wheels. Otherwise, it is not possible at all to use both tires interchangeably on the same wheel.
What Is the Main Difference Between the 225 70R15 and 235 75R15 Tires?
The width of the 225 70r15 tires is 225 millimeters and they are used in smaller and lightweight vehicles. On the other hand, the width of the 235 75r15 tires is 235 millimeters and they are used in larger and heavy-weight vehicles.
Which Tire Makes More Noise? 225 70R15 or 235 75R15?
Larger and wider tires trap more air inside their wheels. Since the 235 75r15 tires are wider in nature they tend to make more noise than the 225 70r15 tires which are gain narrower in size and trap less air inside the wheel.
Can I use 235/75r15 instead of 225/70r15?
Step 1: Understand the Tire Size Notation
Both tire sizes are specified using a series of numbers and letters. The first number (e.g., “235” and “225”) represents the tire’s width in millimeters.
The second number (e.g., “75” and “70”) indicates the aspect ratio, which is the ratio of the tire’s sidewall height to its width. The letter “R” signifies radial construction, and the last number (e.g., “15”) represents the diameter of the wheel (rim size) in inches.
Step 2: Compare the Tire Width
In this case, the 235/75R15 tire is wider (235 mm) than the 225/70R15 tire (225 mm). The “235” tire is 10 mm wider than the “225” tire.
Step 3: Check the Aspect Ratio
The aspect ratio represents the sidewall height as a percentage of the tire’s width. In the 235/75R15 tire, the aspect ratio is 75%, while in the 225/70R15 tire, it’s 70%. This means the sidewall of the 235/75R15 tire is taller compared to its width compared to the 225/70R15 tire.
Step 4: Calculate the Diameter
To find the overall tire diameter, you need to consider both the width and the aspect ratio. A higher aspect ratio generally results in a larger tire diameter. In this case, the 235/75R15 tire will have a slightly larger overall diameter than the 225/70R15 tire.
Step 5: Check Vehicle Compatibility
Before using a different tire size, it’s essential to check your vehicle’s manufacturer’s recommendations. Many vehicles have specific tire size requirements, and deviating from these recommendations can affect handling, safety, and speedometer accuracy.
Step 6: Verify Fitment
Ensure that the larger 235/75R15 tire will fit within your vehicle’s wheel wells without causing any clearance issues. Check for any potential rubbing or interference when the steering is turned.
Step 7: Consider Speedometer Accuracy
Changing to a different tire size can impact speedometer accuracy. The larger 235/75R15 tire will cover more ground per revolution, potentially causing your speedometer to read slightly lower than your actual speed.
Step 8: Consult a Professional
If you have any doubts or concerns about using a different tire size, it’s advisable to consult a professional mechanic or tire expert who can assess your specific vehicle and provide guidance on compatibility and potential implications.
In summary, while you can technically use a 235/75R15 tire instead of a 225/70R15 tire, it’s essential to consider the differences in width, aspect ratio, overall diameter, and potential effects on your vehicle’s performance and safety. Always consult your vehicle’s manufacturer recommendations and seek professional advice when in doubt.
How much taller is a 235/75r15 tire than a 225/70r15?
Step 1: Understand the Tire Size Notation
Both tire sizes are represented by a series of numbers and letters. The first number (e.g., “235” and “225”) indicates the tire’s width in millimeters.
The second number (e.g., “75” and “70”) is the aspect ratio, representing the sidewall height as a percentage of the tire’s width. The letter “R” denotes radial construction, and the last number (e.g., “15”) signifies the wheel’s diameter in inches.
Step 2: Calculate the Sidewall Height for Each Tire
To compare the sidewall height, you need to calculate it for both tire sizes. This is done by multiplying the tire’s width by the aspect ratio (as a decimal):For the 235/75R15 tire: 235 mm x 0.75 = 176.25 mm
For the 225/70R15 tire: 225 mm x 0.70 = 157.5 mm
Step 3: Determine the Difference in Sidewall Height
To find out how much taller the 235/75R15 tire is compared to the 225/70R15 tire, subtract the sidewall height of the latter from the former:176.25 mm (235/75R15) – 157.5 mm (225/70R15) = 18.75 mm
Step 4: Convert the Height Difference to Inches
To express the difference in inches, divide by 25.4 (since there are 25.4 millimeters in an inch):18.75 mm / 25.4 = approximately 0.74 inches
Step 5: Conclusion
The 235/75R15 tire is approximately 0.74 inches taller than the 225/70R15 tire. This means the 235/75R15 tire has a greater overall diameter, which can impact aspects like ground clearance, speedometer accuracy, and vehicle handling. Always consider these factors when choosing a tire size for your vehicle.
How much wider is a 235/75r15 tire than a 225/70r15?
Step 1: Understand the Tire Size Notation
Both tire sizes are described using a series of numbers and letters. The first number (e.g., “235” and “225”) represents the tire’s width in millimeters.
The second number (e.g., “75” and “70”) is the aspect ratio, indicating the sidewall height as a percentage of the tire’s width. The letter “R” signifies radial construction, and the last number (e.g., “15”) represents the wheel’s diameter in inches.
Step 2: Calculate the Tire Width for Each Tire
To compare the tire widths, calculate them for both tire sizes using the first number:For the 235/75R15 tire: 235 mm
For the 225/70R15 tire: 225 mm
Step 3: Determine the Difference in Tire Width
To find out how much wider the 235/75R15 tire is compared to the 225/70R15 tire, subtract the width of the latter from the former:235 mm (235/75R15) – 225 mm (225/70R15) = 10 mm
Step 4: Convert the Width Difference to Inches
To express the difference in inches, divide by 25.4 (since there are 25.4 millimeters in an inch):10 mm / 25.4 = approximately 0.39 inches
Step 5: Conclusion
The 235/75R15 tire is approximately 0.39 inches wider than the 225/70R15 tire. This difference in width may impact aspects like handling, fitment within wheel wells, and overall tire performance. Always consider these factors when selecting a tire size for your vehicle.
Both the 225 70r15 and 235 75r15 tires have positive aspects and some negative aspects as well to go about them. One tire type performs better than the other in some special scenarios. On some other occasions, the second tire type outperforms the first one.
So, it is really difficult to say exactly that this one is the best than the other. It is up to you actually which tire type suits your vehicle better. If you feel happy with the 225 70r15 tires then you can definitely go for that one.
Again, if you find that your vehicle copes well with the 235 75r15 tires then you must have it. So, the end choice should be yours to decide. In this article, we just laid out the foundation for you so that you may decide easily and choose what is best for your vehicle.
Related Article: 235 70r15 vs 235 75r15 Tire – A Comparative Analysis