Tire Size 305/30r20 in inches
The tire size 305/30R20 is equivalent to 27.2x12R20 in inches, has a diameter of 27.2 inches (691 mm), a section width of 12 inches (305 mm), a wheel diameter of 20 inches (508 mm), and is approved to be mounted on 10.5-11.5 inches (266.7 – 292.1 mm) wide wheels. This particular size designation provides a wealth of information about the tire’s construction, dimensions, and suitable fitment.
305/30r20 in inches
Dive into detailed inch and millimeter insights through the convenience of this Table chart.
| Feature | Inches | Metric |
|---|---|---|
| Tire Diameter | 27.2 | 691 |
| Section Width | 12 | 305 |
| Rim Height | 20 | 508 |
| Sidewall Height | 3.6 | 91.5 |
| Circumference | 85.5 | 2170.8 |
| Revolutions | 742 per mile | 460 per km |
| Rim Width Range | 10.5-11.5 | 266.7 – 292.1 |
How Tall Is A 305/30R20 Tire?
The 305/30R20 tire height is 27.2 inches, which converts to 691 mm. This measurement, also known as the overall diameter, refers to the total height of the tire when properly inflated and not under load. It’s an essential factor to consider when choosing tires, as it can impact vehicle clearance and ride quality.
What Is the 305/30R20 Width In Inches?
The tread width of the 305/30R20 tire size is 12 inches or 305 mm. The section width refers to the linear distance between the outsides of the sidewalls of a new, inflated tire without any load applied (excluding any protective side ribs, decorations, or lettering). A larger section width implies a wider tire, which can provide better traction and stability.
What Is the 305/30R20 Sidewall Height?
The 305/30R20 tire’s sidewall height is approximately 3.6 inches (91.5 mm). This measurement represents the distance from the rim to the tire’s outer circumference. The sidewall height, also known as the aspect ratio, significantly affects a tire’s performance, ride comfort, and appearance.
What Is the 305/30R20 Tire Circumference?
The circumference of the 305/30R20 tire size is approximately 85.5 inches (2170.8 mm). This measurement is the linear distance around the outside of the tire. It is vital for proper speedometer calibration and overall vehicle performance.
What Is the 305/30R20 Revolutions Per Mile?
For the 305/30R20 tire size, there are approximately 742 revolutions per mile (460 revolutions per km). This number indicates how often a tire will rotate in one mile (or kilometer) and is critical for speedometer accuracy, gear settings, and fuel economy calculations.
What Is the 305/30R20 Rims Size?
For the 305/30R20 tire size the rim diameter is 20 inches (508 mm). The tire is compatible with rim widths ranging from 10.5 to 11.5 inches (266.7 – 292.1 mm), ensuring proper fitting and optimal performance.
Fitment Guide
This table will guide you on which vehicle makes, and models are most compatible with the 305/30R20 tire size. However, always consult your vehicle’s manual or a tire professional for specific recommendations.
| Brand Name | Model |
|---|---|
| ACURA | NSX (2016 – 2022) |
| ASTON MARTIN | V12 Vanquish (2011 – 2017), V8 Vantage (2008 – 2017), Vanquish (2011 – 2018), Vanquish S (2017 – 2018) |
| AUDI | R8 (2013 – 2023) |
| CHEVROLET | Camaro (2016 – 2023), Corvette (2006 – 2023) |
| DAEWOO | Veritas (2008 – 2010) |
| FERRARI | 458 Italia (2009 – 2015), 458 Speciale (2013 – 2016), 458 Speciale A (2014 – 2016), 458 Spider (2011 – 2015), 488 GTB (2015 – 2020), 488 Pista (2018 – 2020), 488 Pista Spider (2018 – 2020), 488 Spider (2016 – 2020), F8 Spider (2019 – 2022), F8 Tributo (2019 – 2022) |
| FORD | Mustang (2020 – 2023), Mustang Shelby GT500 (2020 – 2023) |
| HOLDEN | Corvette (2020 – 2020) |
| HONDA | NSX (2016 – 2022) |
| JAGUAR | F-Type (2014 – 2020), XE (2017 – 2019) |
| LAMBORGHINI | Huracan (2014 – 2022) |
| LEXUS | LFA (2010 – 2012) |
| MASERATI | MC20 (2020 – 2023) |
| MCLAREN | 12C (2011 – 2014), 12C Spider (2012 – 2015), 650S (2014 – 2017), 675LT (2015 – 2017), 675LT Spider (2015 – 2017), 720S (2017 – 2022), 720S Spider (2019 – 2022), 765LT (2020 – 2022), 765LT Spider (2020 – 2022), Elva (2020 – 2022) |
| MERCEDES-BENZ | AMG GT (2014 – 2023) |
| PANOZ | Avezzano (2017 – 2022) |
| POLARIS | Slingshot (2015 – 2022) |
| PORSCHE | 911 (2011 – 2023), Boxster (2014 – 2017), Cayman (2015 – 2016) |
Replacement Tire Size
Replacement tires have to be within 3% of the total diameter of your original tires to ensure safety and optimal performance and not to negatively affect the functionality of your vehicle’s advanced safety systems.
| Tire Size | Overall Diameter | Difference |
|---|---|---|
| 345/25R20 | 26.8″ | -1.70% |
| 245/35R20 | 26.8″ | -1.70% |
| 285/30R20 | 26.8″ | -1.70% |
| 145/60R20 | 26.9″ | -1.40% |
| 295/30R20 | 27.0″ | -0.90% |
| 255/35R20 | 27.0″ | -0.90% |
| 225/40R20 | 27.1″ | -0.60% |
| 265/35R20 | 27.3″ | 0.30% |
| 155/60R20 | 27.3″ | 0.30% |
| 235/40R20 | 27.4″ | 0.60% |
| 145/65R20 | 27.4″ | 0.60% |
| 315/30R20 | 27.5″ | 0.90% |
| 275/35R20 | 27.6″ | 1.20% |
| 175/55R20 | 27.6″ | 1.20% |
| 215/45R20 | 27.6″ | 1.40% |
| 325/30R20 | 27.7″ | 1.70% |
| 195/50R20 | 27.7″ | 1.70% |
| 245/40R20 | 27.7″ | 1.70% |
| 165/60R20 | 27.8″ | 2.00% |
Our Observation
In our observation, the 305/30R20 tire size is well-suited for sports cars and high-performance sedans. These tires offer a large contact patch for improved traction, shorter stopping distances, and more stable cornering.
However, they might not provide the most comfortable ride due to their low aspect ratio, leading to less cushioning against road imperfections.
The 305/30R20 tire size offers a great blend of performance and aesthetic appeal. However, remember that choosing the right tire involves considering multiple factors, including your driving style, local weather conditions, and the specific demands of your vehicle.
