235 45r18 vs 245 45r18 Tire Size
Keep in mind that there are many factors to consider when choosing a tire size, such as your vehicle type, driving habits, and climate. So take all of this into account before making a decision. So, what is the difference between 235 45r18 and 245 45r18 tires? We will compare the two sizes and help you decide which one is right for you.
235/45r18 vs 245/45r18 Table
This comparison table will help you understand the differences between 235 45r18 and 245 45r18 tires.
235/45r18 | 245/45r18 |
Overall Diameter 26.33 inches | Overall Diameter 26.68 inches |
Width 9.25 inches | Width 9.65 inches |
Sidewall Height 4.16 inches | Sidewall Height 4.34 inches |
Radial Tire (A Radial-Ply Tire) | Radial Tire (A Radial-Ply Tire) |
Rim Size 18 inches | Rim Size 18 inches |
Circumference 82.71 inches | Circumference 83.82 inches |
Revs Per Mile 766 | Revs Per Mile 755 |
Overall Diameter
Overall diameter is the measurement from one side of the tire to the other. This is important because it needs to be compatible with your car. If the overall diameter is too big or small, it can cause problems.
The 245 45r18 has a diameter of 26.68 inches, while the 235 45r18 has a diameter of 26.33 inches. That means the 245 is slightly bigger overall. The difference between those tire sizes is around 0.35 inches or about 1.3%.
Section Width
The width of a tire is important for several reasons. A wider tire will provide more stability and grip, but it can also make the ride less comfortable. Most importantly, ensuring the width is compatible with your car would be best. The 245 45r18 has a width of 9.65 inches, while the 235 45r18 has a width of 9.25 inches. The 245 is wider by about 0.39 inches or around 4.3%.
Sidewall Height
The sidewall height is the measurement from the edge of the tire to the wheel. A taller sidewall will provide a softer ride, but it can also make the tire more susceptible to damage. The 245 45r18 has a sidewall height of around 4.34 inches, while the 235 45r18 has a sidewall height of approximately 4.16 inches. The 245 is taller by about 0.18 inches or around 4.3%.
Rim Size
The rim size is the diameter of the wheel that the tire is mounted on. The 245 45r18 has a rim size of 18 inches, while the 235 45r18 has a rim size of 18 inches. That means both tire size options have the same rim size.
Circumference
The circumference is the distance around the tire. This measurement is important because it can affect your speedometer readings. If the circumference is too big or small, it can cause your speedometer to be inaccurate.
The 245 45r18 has a circumference of 82.71 inches, while the 235 45r18 has a circumference of 82.71 inches. That means the 235 is more significant by about 1.11 inches or around 1.3%
Revolutions Per Mile
The number of revolutions per mile (RPM) is a measure of how far the tire will travel in one mile. This measurement is important because it can affect your fuel economy. The 245 45r18 has an RPM of 755, while the 235 45r18 has an RPM of 766. That means the 235 will travel about 11 miles further per revolution.
Construction Type
The construction type is the way the tire is put together. The 245 45r18 has radial construction, while the 235 45r18 also has radial construction. Radial tires are the most common type of tire, and they are made with cord plies that run radially across the tire.
Bias-ply tires are made with cord plies that run diagonally across the tire. Radial tires provide a smoother ride and are more durable. In contrast, bias-ply tires are cheaper and provide better traction in off-road conditions.
Our Observation
The main difference between 235 45r18 and 245 45r18 tire size is in the section width. The 245 45r18 tire size is 0.39 inches or about 4.3% wider than the 235 45r18 tire size. The 235 45r18 tires are the better option if you are looking for fuel economy and a longer-lasting tire.
The 245 45r18 tires are better if you want stability and grip. Ultimately, deciding between 235 45r18 and 245 45r18 tires comes to your personal preferences and needs. If you have any further questions, please feel free to contact us. We would be happy to help you choose the right tire size for your car.
