Tire Size 245/45r20 in inches

The tire size 245/45R20 is equivalent to 28.7×9.6R20 in inches, has a diameter of 28.7 inches (728.5mm), a section width of 9.6 inches (245mm), a wheel diameter of 20 inches (508mm), and is approved to be mounted on 7.5-9.0 inches (190.5 – 228.6mm) wide wheels. This size is commonly seen in many sedans and sport utility vehicles.

245/45r20 in inches

This Table chart enables you to simultaneously comprehend the fine measurements in both inches and millimeters.

Feature Inches Metric
Tire Diameter 28.7 728.5
Section Width 9.6 245
Rim Height 20 508
Sidewall Height 4.3 110.3
Circumference 90.1 2288.7
Revolutions 437 per km 703 per mile
Rim Width Range 7.5-9.0 190.5 – 228.6

How Tall Is A 245/45R20 Tire?

The Tire Height of the 245/45R20 tire size is 28.7 inches or approximately 728.5 millimeters. This measurement is also referred to as the overall diameter. It is calculated by adding the sidewall height, the wheel diameter, and another sidewall height. Understanding the tire height is vital as it can impact the clearance levels of the vehicle and potentially affect the ride comfort.

What Is the 245/45R20 Width In Inches?

The tread width of the 245/45R20 tire size is 9.6 inches or about 245 millimeters. This is also known as the section width, and it represents the distance between the widest parts of a tire’s outer sidewalls. This dimension plays a crucial role in defining the tire’s contact patch, affecting factors such as traction, handling, and fuel efficiency.

What Is the 245/45R20 Sidewall Height?

The 245/45R20 tire’s sidewall height is 4.3 inches or roughly 110.3 millimeters. This is computed by multiplying the section width by the aspect ratio, which in this case is 45. The resulting number signifies the height from the rim to the tread of the tire. This influences the ride quality, with taller sidewalls typically providing a more comfortable ride.

What Is the 245/45R20 Tire Circumference?

The circumference of the 245/45R20 tire size is 90.1 inches or around 2288.7 millimeters. While not commonly considered by most vehicle owners, this value can impact the vehicle’s speedometer accuracy and overall vehicle performance.

What Is the 245/45R20 Revolutions Per Mile?

For the 245/45R20 tire size, there are approximately 703 revolutions per mile or 437 revolutions per kilometer. This information is important when considering fuel efficiency and wheel rotations. The fewer revolutions, the less effort a vehicle needs to move, possibly improving fuel consumption.

What Is the 245/45R20 Rims Size?

The 245/45R20 tire size, the rim diameter is 20 inches, equivalent to 508 millimeters. The recommended rim width range is 7.5-9.0 inches or 190.5 – 228.6 millimeters. Having the correct rim size is crucial to ensure a snug fit and avoid potential issues such as reduced performance or safety concerns.

Fitment Guide
This table will guide you on which vehicles are compatible with the 245/45R20 tire size. Compatibility is essential to ensure safe and optimal performance.

Brand Name Model
ACURA RDX (2006 – 2012)
ARCFOX αS (2021 – 2022), αT (2020 – 2022)
AUDI A6 Allroad (2019 – 2023), e-tron GT (2021 – 2023), RS e-tron GT (2021 – 2023)
BMW iX3 (2020 – 2023), X3 (2017 – 2023), X4 (2018 – 2023)
BUICK Envision (2014 – 2023), Envision Plus (2021 – 2023), Envision S (2020 – 2023), Envision S GS (2021 – 2023)
BYD Tang (2015 – 2020)
CADILLAC XT4 (2019 – 2023)
CHANGAN UNI-T (2020 – 2023)
CHERY eQ5 (2020 – 2022)
CHEVROLET Camaro (2010 – 2015), Captiva (2006 – 2016)
CHRYSLER 300 (2004 – 2023), 300C (2004 – 2021), 300C SRT-8 (2004 – 2014), Grand Voyager (2008 – 2015), Town & Country (2008 – 2010), Voyager (2008 – 2016)
DODGE Challenger (2008 – 2023), Challenger SRT (2008 – 2021), Charger (2005 – 2023), Charger SRT (2007 – 2014), Grand Caravan (2011 – 2020), Journey (2008 – 2020), Magnum SRT (2006 – 2009)
DR 6.0 (2022 – 2022), DR6 (2016 – 2020), F35 (2020 – 2022)
DS DS 4 (2021 – 2023)
EXEED VX (2021 – 2022)
FIAT Freemont (2011 – 2016)
FORD Equator (2021 – 2023), Equator Sport (2022 – 2023), Escape (2020 – 2023), Kuga (2019 – 2023), Mustang Mach-E (2020 – 2023), Taurus (2013 – 2019), Taurus SHO (2010 – 2019), Territory (2022 – 2023)
GAC FIAT Freemont (2013 – 2015)
GEELY Monjaro (2021 – 2023), Tugella (2019 – 2022), Xingyue L (2021 – 2022)
GENESIS G90 (2022 – 2023)
GMC Terrain (2013 – 2021)
HOLDEN Equinox (2017 – 2021)
HONDA CR-V (2011 – 2018)
HYUNDAI Santa Fe (2015 – 2018)
JAGUAR E-Pace (2017 – 2023)
JEEP Cherokee (2014 – 2018), Meridian (2021 – 2023)
LANCIA Thema (2011 – 2014), Voyager (2011 – 2015)
LAND ROVER Discovery Sport (2014 – 2023), Range Rover Evoque (2011 – 2018)
LEXUS LC (2017 – 2023), LS (2017 – 2023), NX (2014 – 2021), RX (1997 – 2009)
LINCOLN Corsair (2019 – 2023), MKS (2008 – 2016)
MAZDA CX-5 (2013 – 2023), CX-50 (2022 – 2023), CX-8 (2017 – 2023)
NIO ET7 (2021 – 2022)
PONTIAC Torrent (2005 – 2009)
PORSCHE Taycan (2020 – 2023)
SSANGYONG Torres (2022 – 2023)
TOYOTA Mirai (2020 – 2023), RAV4 (2019 – 2023), RAV4 Prime (2020 – 2023)
VOLKSWAGEN Tayron X (2020 – 2023)
VOLVO V90 Cross Country (2016 – 2023), XC40 (2017 – 2024)
WEY VV5 (2017 – 2021)
ZEEKR X (2023 – 2023)

Replacement Tire Size
Replacement tires have to be within 3% of the total diameter of the original tire size. Choosing the correct replacement tire size will help to maintain the proper operation of your vehicle’s speedometer, odometer, and safety systems.

Tire Size Overall Diameter Difference
285/35R20 27.9″ -2.70%
335/30R20 28.0″ -2.50%
225/45R20 28.0″ -2.50%
155/65R20 28.0″ -2.50%
255/40R20 28.0″ -2.20%
295/35R20 28.1″ -1.90%
345/30R20 28.2″ -1.60%
265/40R20 28.3″ -1.10%
235/45R20 28.3″ -1.10%
305/35R20 28.4″ -0.80%
315/35R20 28.7″ 0.00%
275/40R20 28.7″ 0.00%
285/40R20 29.0″ 1.10%
255/45R20 29.1″ 1.40%
145/80R20 29.1″ 1.60%
235/50R20 29.3″ 2.20%
295/40R20 29.3″ 2.20%
265/45R20 29.4″ 2.50%

Our Observation
The 245/45R20 tire size is versatile, fitting a range of sedans and SUVs. Its dimensions balance ride comfort, performance, and aesthetic appeal.

When selecting this tire size, drivers should consider factors such as tire height, section width, and rim size to ensure optimal vehicle performance and safety.

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