Tire Size 265/70r18 vs 275/65r18
The tire size 265/70r18 may also be represented as 32.6×10.4r18, while the tire size 275/65r18 is equivalent to 32.1×10.8r18. These alternative expressions denote the same tire size and can prove beneficial in identifying compatible replacement tires or comparing tires that utilize different size systems.
275/65r18 vs 265/70r18 Table
By referring to this table, you can gain a better understanding of the distinctions between the tire dimensions 275/65R18 and 265/70R18.
| Feature | 275/65r18 | 265/70r18 | Difference |
|---|---|---|---|
| Diameter | 32.07″ | 32.61″ | 0.53 inches |
| Width | 10.83″ | 10.43″ | 0.39 inches |
| Circum. | 100.77″ | 102.44″ | 1.67 inches |
| Sidewall Height | 7.04″ | 7.3″ | 0.27 inches |
| Revolutions | 628.78 | 618.53 | 10.25 |
Alternative Tire Size of 265/70r18
As a general rule, any alternative tire size you choose should have an overall diameter that is within 3% of the original tire’s diameter. This will ensure that the speedometer and odometer readings remain accurate and that the overall performance of your vehicle is not affected.
| Tire Size | Overall Diameter | Difference |
|---|---|---|
| 235/75R18 | 31.9″ (809 mm) | -2.4% |
| 255/70R18 | 32.1″ (815 mm) | -1.7% |
| 275/65R18 | 32.1″ (815 mm) | -1.7% |
| 305/60R18 | 32.4″ (823 mm) | -0.7% |
| 285/65R18 | 32.6″ (827 mm) | -0.2% |
| 375/50R18 | 32.8″ (833 mm) | 0.5% |
| 295/65R18 | 33.1″ (841 mm) | 1.4% |
| 275/70R18 | 33.2″ (843 mm) | 1.7% |
| 325/60R18 | 33.3″ (847 mm) | 2.2% |
| 305/65R18 | 33.6″ (853 mm) | 2.9% |
Tire Size Alternative 275/65R18
The overall diameter of replacement tires must be within a 3% tolerance of the original tires.
| Tire Size | Overall Diameter | Difference |
|---|---|---|
| 225/75R18 | 31.3″ (795 mm) | -2.5% |
| 285/60R18 | 31.5″ (799 mm) | -2% |
| 265/65R18 | 31.5″ (801 mm) | -1.7% |
| 245/70R18 | 31.5″ (801 mm) | -1.7% |
| 235/75R18 | 31.9″ (809 mm) | -0.7% |
| 255/70R18 | 32.1″ (815 mm) | 0% |
| 305/60R18 | 32.4″ (823 mm) | 1% |
| 285/65R18 | 32.6″ (827 mm) | 1.5% |
| 265/70R18 | 32.6″ (829 mm) | 1.7% |
| 375/50R18 | 32.8″ (833 mm) | 2.2% |
Overall Diameter
The overall diameter of a tire affects its performance, speedometer accuracy, and fuel efficiency. The 265/70r18 tire has an overall diameter of 32.61 inches, while the 275/65r18 tire has an overall diameter of 32.07 inches. This means that the 265/70r18 tire is taller and has a larger contact patch, which can result in better traction and a smoother ride.
Tread Width
The tread width of a tire is the distance between the outer edges of the tread. The 265/70r18 tire has a tread width of 10.43 inches, while the 275/65r18 tire has the same tread width of 10.43 inches. This means that both tire size has a same tread, which can provide exceptional handling and cornering, especially on dry roads.
Rim Diameter
The rim diameter is the size of the wheel that the tire fits onto. Both the 265/70r18 and 275/65r18 tires are designed to fit on an 18-inch rim diameter.
Sidewall Height
The sidewall height is the distance between the rim and the outer edge of the tire. The 265/70r18 tire has a sidewall height of 6.0 inches, while the 275/65r18 tire has a sidewall height of 5.5 inches. This means that the 265/70r18 tire has a taller sidewall, which can provide better shock absorption and a more comfortable ride.
Circumference
The circumference is the distance around the tire. The 265/70r18 tire has a circumference of 102.44 inches, while the 275/65r18 tire has a circumference of 100.77 inches. This means that the 265/70r18 tire covers more ground per revolution than the 275/65r18 tire, which can affect fuel efficiency and speedometer accuracy.
Revolutions
The number of revolutions a tire makes in a given distance affects speedometer accuracy and fuel efficiency. The 265/70r18 tire makes 618.53 revolutions per mile, while the 275/65r18 tire makes 628.78 revolutions per mile. This means that the 275/65r18 tire makes more revolutions per mile, which can result in more wear and tear and slightly lower fuel efficiency.
Our Observation
Based on the information provided, it can be observed that the 265/70r18 tire is taller and has a larger contact patch, which can result in better traction and a smoother ride compared to the 275/65r18 tire. Both tire sizes have the same tread width of 10.43 inches, providing exceptional handling and cornering, especially on dry roads. Both tire sizes are designed to fit on an 18-inch rim diameter.
Overall, the choice between 265/70r18 and 275/65r18 tires comes down to personal preference and driving needs. If you prioritize a smooth ride and better traction, the 265/70r18 tire might be a better option for you. On the other hand, if you prioritize handling and cornering, the 275/65r18 tire might be a better fit for you.
