Tire Size 245/55r18 in inches
The tire size 245/55R18 is equivalent to 28.6×9.6R18 in inches. It boasts an overall diameter of 28.6 inches (726.7mm), a section width of 9.6 inches (245mm), a wheel diameter of 18 inches (457mm), and is approved to be mounted on 7.0-8.5 inches (177.8 – 215.9mm) wide wheels.
245/55r18 in inches
Use this Table chart to grasp intricate measurements in inches and millimeters all at once.
| Feature | Inches | Metric (mm) |
|---|---|---|
| Tire Diameter | 28.6 | 726.7 |
| Section Width | 9.6 | 245 |
| Rim Height | 18 | 457 |
| Sidewall Height | 5.3 | 134.8 |
| Circumference | 89.9 | 2283 |
| Revolutions | 438 per km | 706 per mile |
| Rim Width Range | 7.0-8.5 | 177.8 – 215.9 |
How Tall Is A 245/55R18 Tire?
The Tire Height of the 245/55R18 tire size is approximately 28.6 inches, equivalent to 726.7 millimeters. This is calculated by multiplying the section width (245mm) by the aspect ratio (55%), then doubling the result and adding the wheel diameter (18 inches or 457mm).
What Is the 245/55R18 Width In Inches?
The tread width of the 245/55R18 tire size is 9.6 inches or 245 millimeters. This figure, known as the section width, measures the distance from the widest point of the tire’s outer sidewall to the widest point of its inner sidewall when properly mounted and inflated.
What Is the 245/55R18 Sidewall Height?
The 245/55R18 tire’s sidewall height is 5.3 inches, equivalent to 134.8 millimeters. This is calculated by multiplying the section width (245mm) by the aspect ratio (55%).
What Is the 245/55R18 Tire Circumference?
The circumference of the 245/55R18 tire size is approximately 89.9 inches or about 2283 millimeters. This is estimated by multiplying the tire’s diameter by the mathematical constant pi (about 3.14159).
What Is the 245/55R18 Revolutions Per Mile?
For the 245/55R18 tire size, there are approximately 706 revolutions per mile, or about 438 revolutions per kilometer. This is derived by dividing 63,360 inches (the number of inches in a mile) by the tire’s circumference.
What Is the 245/55R18 Rims Size?
The 245/55R18 tire size, the rim diameter is 18 inches or 457 millimeters. The tire is designed to be mounted on rims with a width between 7.0 and 8.5 inches (177.8 – 215.9 millimeters).
Fitment Guide
This table will guide you on which vehicles are compatible with the 245/55R18 tire size. It’s essential to check the vehicle manufacturer’s recommendations as fitting an incorrect tire size can affect a vehicle’s performance and safety.
| Brand Name | Model |
|---|---|
| CHEVROLET | Camaro (2010 – 2015) |
| DAEWOO | Musso (1999 – 2002) |
| DODGE | Charger (2015 – 2020), Grand Caravan (2011 – 2020), Magnum (2004 – 2009) |
| GAC HONDA | Crosstour (2011 – 2018) |
| GMC | Canyon (2009 – 2012), Savana 1500 (1996 – 2002) |
| HAIMA | S7 (2015 – 2022) |
| HONDA | CR-V (2007 – 2018) |
| HYUNDAI | Santa Fe (2015 – 2018) |
| JEEP | Cherokee (2014 – 2018) |
| LEXUS | NX (2015 – 2021), RX (1997 – 2009) |
| MERCEDES-BENZ | Sprinter (2018 – 2023) |
| MERCURY | Marauder (2003 – 2004), Mariner (2005 – 2011) |
| RAM | C/V (2013 – 2018) |
| SSANGYONG | Musso (1993 – 2006) |
| SUBARU | Legacy Outback (2014 – 2023), Outback (2014 – 2023) |
| SUZUKI | Escudo (2005 – 2015), Grand Nomade (2013 – 2020), Grand Vitara (2005 – 2021), XL-7 (2007 – 2009) |
Replacement Tire Size
Replacement tires have to be within 3% of the total diameter of the original tires. This ensures they don’t interfere with the gears or affect the handling or the speedometer readings. Always verify with your service professional before changing tire sizes.
| Tire Size | Overall Diameter | Difference |
|---|---|---|
| 315/40R18 | 27.9″ (709 mm) | -2.5% |
| 285/45R18 | 28.1″ (713 mm) | -1.9% |
| 255/50R18 | 28.1″ (713 mm) | -1.9% |
| 235/55R18 | 28.1″ (715 mm) | -1.7% |
| 155/85R18 | 28.4″ (721 mm) | -0.8% |
| 265/50R18 | 28.5″ (723 mm) | -0.6% |
| 295/45R18 | 28.5″ (723 mm) | -0.6% |
| 225/60R18 | 28.6″ (727 mm) | 0.0% |
| 305/45R18 | 28.8″ (731 mm) | 0.6% |
| 275/50R18 | 28.9″ (733 mm) | 0.8% |
| 175/80R18 | 29.0″ (737 mm) | 1.4% |
| 155/90R18 | 29.0″ (737 mm) | 1.4% |
| 255/55R18 | 29.0″ (737 mm) | 1.4% |
| 235/60R18 | 29.1″ (739 mm) | 1.7% |
| 285/50R18 | 29.3″ (743 mm) | 2.2% |
Our Observation
In our review of the 245/55R18 tire size, we observed that this is a popular size for vehicles requiring larger wheels and a higher load rating. The tire offers a combination of good grip, comfort, and durability.
However, like all tires, actual performance can vary based on the tire model and brand. Therefore, always consider the vehicle’s use, driving style, and the local climate when choosing tires. A professional should always install tires to ensure proper fit and safety.
