What is the diameter of a 305/30R19 tire?

A 305/30R19 tire has an overall diameter of 26.2 inches (665.5mm).

How many revolutions per mile does a 305/30R19 tire make?

A 305/30R19 tire makes approximately 770 revolutions per mile.

What rim width is recommended for 305/30R19 tires?

The recommended wheel rim width for a 305/30R19 tire is 7.6" - 10.7".

305/30R19

Standard Metric

Factory Specs, Physical Dimensions & Compatible Vehicle Applications

Factory Spec Overview

The 305/30R19 tire size features an overall diameter of 26.2 inches, a section width of 12.0 inches (305mm), and rotates 770 times per mile. It is a standard factory tire fitment on 150+ vehicle models including Audi R8.

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Physical Dimensions & Specs

Overall Diameter

26.2"

665.5 mm

Section Width

305 mm

12.01" wide

Sidewall Height

3.6"

91.4 mm (30% aspect)

Revolutions / Mile

770

Circumference: 82.32"

Rim Diameter

19"

Wheel size

Recommended Rim Width

7.6" - 10.7"

Optimal rim width range

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Speedometer & Alternate Size Calculator

Testing an alternate size for your vehicle? Compare 305/30R19 against any proposed tire size below:

Popular Comparisons:

Tire 1 (Stock / Base)305/30R19

Section Width (mm)

Aspect Ratio (%)

Rim Diameter (in)

Wheel Width (in)

Offset ET (mm)

Overall Height:26.2"

Sidewall:3.6"

Revs/Mile:770

Tire 2 (New / Compare)245/60R18

Section Width (mm)

Aspect Ratio (%)

Rim Diameter (in)

Wheel Width (in)

Offset ET (mm)

Overall Height:29.6"

Sidewall:5.8"

Revs/Mile:682

Visual Tire & Wheel Comparison

Speedometer Variance

+12.9%At 60 mph reading, actual speed is 67.7 mph

Indicated	Actual Speed	Diff
20 mph	22.6 mph	+2.6 mph
30 mph	33.9 mph	+3.9 mph
45 mph	50.8 mph	+5.8 mph
60 mph	67.7 mph	+7.7 mph
75 mph	84.6 mph	+9.6 mph
90 mph	101.6 mph	+11.6 mph

Fender & Suspension Clearance

Fitment Status: MODERATE RISK

Flush fitment. Extends 17.7mm outwards. Check wheel arch clearance under full suspension compression.

Inner Strut Space:7.7mm LESS clearance

Outer Fender Push:Extends 17.7mm further out

Ride Height Delta:+1.69" ground clearance

Vehicles That Fit 305/30R19 (150+ Models)

Factory standard and optional vehicle fitments utilizing 305/30R19 tires:

Year	Make & Model	Trim / Variant	Lookup Specs
2012	Audi R8	GT, 2D Convertible	View 2012 R8 ›
2012	Audi R8	GT, 2D Coupe	View 2012 R8 ›
2014	Audi R8	Plus, Automatic DCT Trans	View 2014 R8 ›
2014	Audi R8	Plus, Standard Trans	View 2014 R8 ›
2022	Cadillac CT5	V Blackwing, Standard Trans	View 2022 CT5 ›
2022	Cadillac CT5	V Blackwing, Automatic Trans	View 2022 CT5 ›
2023	Cadillac CT5	V Blackwing, Standard Trans	View 2023 CT5 ›
2023	Cadillac CT5	V Blackwing, Automatic Trans	View 2023 CT5 ›
2024	Cadillac CT5	V Blackwing, Standard Trans	View 2024 CT5 ›
2024	Cadillac CT5	V Blackwing, Automatic Trans	View 2024 CT5 ›
2025	Cadillac CT5	V Blackwing, Automatic Trans	View 2025 CT5 ›
2025	Cadillac CT5	V Blackwing, Standard Trans	View 2025 CT5 ›
2014	Chevrolet Camaro	Z/28	View 2014 Camaro ›
2015	Chevrolet Camaro	Z/28	View 2015 Camaro ›
2018	Chevrolet Camaro	ZL1, 2D Coupe, Standard Trans	View 2018 Camaro ›
2018	Chevrolet Camaro	ZL1, 2D Coupe, Automatic Trans	View 2018 Camaro ›
2018	Chevrolet Camaro	ZL1, 2D Convertible, Automatic Trans	View 2018 Camaro ›
2018	Chevrolet Camaro	ZL1, 2D Convertible, Standard Trans	View 2018 Camaro ›
2019	Chevrolet Camaro	ZL1, 2D Convertible, Automatic Trans	View 2019 Camaro ›
2019	Chevrolet Camaro	ZL1, 2D Convertible, Standard Trans	View 2019 Camaro ›
2019	Chevrolet Camaro	ZL1, 2D Coupe, Automatic Trans	View 2019 Camaro ›
2019	Chevrolet Camaro	ZL1, 2D Coupe, Standard Trans	View 2019 Camaro ›
2020	Chevrolet Camaro	ZL1, 2D Coupe, Automatic Trans	View 2020 Camaro ›
2020	Chevrolet Camaro	ZL1, 2D Convertible, Standard Trans	View 2020 Camaro ›
2020	Chevrolet Camaro	ZL1, 2D Coupe, Standard Trans	View 2020 Camaro ›
2020	Chevrolet Camaro	ZL1, 2D Convertible, Automatic Trans	View 2020 Camaro ›
2021	Chevrolet Camaro	ZL1, 2D Convertible, Automatic Trans	View 2021 Camaro ›
2021	Chevrolet Camaro	ZL1, 2D Convertible, Standard Trans	View 2021 Camaro ›
2021	Chevrolet Camaro	ZL1, 2D Coupe, Automatic Trans	View 2021 Camaro ›
2021	Chevrolet Camaro	ZL1, 2D Coupe, Standard Trans	View 2021 Camaro ›
2022	Chevrolet Camaro	ZL1, 2D Coupe, Automatic Trans	View 2022 Camaro ›
2022	Chevrolet Camaro	ZL1, 2D Convertible, Automatic Trans	View 2022 Camaro ›
2022	Chevrolet Camaro	ZL1, 2D Coupe, Standard Trans	View 2022 Camaro ›
2022	Chevrolet Camaro	ZL1, 2D Convertible, Standard Trans	View 2022 Camaro ›
2023	Chevrolet Camaro	ZL1, 2D Convertible, Automatic Trans	View 2023 Camaro ›
2023	Chevrolet Camaro	ZL1, 2D Convertible, Standard Trans	View 2023 Camaro ›
2023	Chevrolet Camaro	ZL1, 2D Coupe, Automatic Trans	View 2023 Camaro ›
2023	Chevrolet Camaro	ZL1, 2D Coupe, Standard Trans	View 2023 Camaro ›
2024	Chevrolet Camaro	ZL1, 2D Convertible, Automatic Trans	View 2024 Camaro ›
2024	Chevrolet Camaro	ZL1, 2D Convertible, Standard Trans	View 2024 Camaro ›
2024	Chevrolet Camaro	ZL1, 2D Coupe, Standard Trans	View 2024 Camaro ›
2024	Chevrolet Camaro	ZL1, 2D Coupe, Automatic Trans	View 2024 Camaro ›
2016	Ford Mustang	Shelby GT350R	View 2016 Mustang ›
2017	Ford Mustang	Shelby GT350R	View 2017 Mustang ›
2018	Ford Mustang	Shelby GT350R	View 2018 Mustang ›
2019	Ford Mustang	Shelby GT350R	View 2019 Mustang ›
2020	Ford Mustang	Shelby GT350R	View 2020 Mustang ›
2021	Ford Mustang	Mach 1, Automatic Trans	View 2021 Mustang ›
2021	Ford Mustang	Mach 1, Standard Trans	View 2021 Mustang ›
2022	Ford Mustang	Mach 1, Automatic Trans	View 2022 Mustang ›
2022	Ford Mustang	Mach 1, Standard Trans	View 2022 Mustang ›
2023	Ford Mustang	Mach 1, Automatic Trans	View 2023 Mustang ›
2023	Ford Mustang	Mach 1, Standard Trans	View 2023 Mustang ›
2006	Porsche 911	Carrera 4S, 2D Convertible, Standard	View 2006 911 ›
2006	Porsche 911	Carrera 4S, 2D Convertible, Automatic	View 2006 911 ›
2006	Porsche 911	Carrera 4S, 2D Coupe, Automatic	View 2006 911 ›
2006	Porsche 911	Carrera 4S, 2D Coupe, Standard	View 2006 911 ›
2007	Porsche 911	Carrera 4S, 2D Coupe, Automatic	View 2007 911 ›
2007	Porsche 911	Carrera 4S, 2D Coupe, Standard	View 2007 911 ›
2007	Porsche 911	Carrera 4S, 2D Convertible, Automatic	View 2007 911 ›
2007	Porsche 911	Carrera 4S, 2D Convertible, Standard	View 2007 911 ›
2007	Porsche 911	Targa 4S, Automatic	View 2007 911 ›
2007	Porsche 911	GT3	View 2007 911 ›
2007	Porsche 911	Targa 4S, Standard	View 2007 911 ›
2007	Porsche 911	Turbo, Standard	View 2007 911 ›
2007	Porsche 911	Turbo, Automatic	View 2007 911 ›
2008	Porsche 911	Carrera 4S, 2D Convertible, Standard	View 2008 911 ›
2008	Porsche 911	Carrera 4S, 2D Convertible, Automatic	View 2008 911 ›
2008	Porsche 911	Carrera 4S, 2D Coupe, Automatic	View 2008 911 ›
2008	Porsche 911	Turbo, 2D Coupe, Automatic	View 2008 911 ›
2008	Porsche 911	Turbo, 2D Convertible, Automatic	View 2008 911 ›
2008	Porsche 911	Turbo, 2D Convertible, Standard	View 2008 911 ›
2008	Porsche 911	GT3	View 2008 911 ›
2008	Porsche 911	Targa 4S, Automatic	View 2008 911 ›
2008	Porsche 911	Turbo, 2D Coupe, Standard	View 2008 911 ›
2008	Porsche 911	Carrera 4S, 2D Coupe, Standard	View 2008 911 ›
2008	Porsche 911	GT3 RS	View 2008 911 ›
2008	Porsche 911	Targa 4S, Standard	View 2008 911 ›
2009	Porsche 911	Carrera 4S, 2D Convertible, Standard	View 2009 911 ›
2009	Porsche 911	Carrera 4S, 2D Coupe, Automatic DCT	View 2009 911 ›
2009	Porsche 911	Carrera 4S, 2D Coupe, Standard	View 2009 911 ›
2009	Porsche 911	Carrera 4S, 2D Convertible, Automatic DCT	View 2009 911 ›
2009	Porsche 911	Targa 4S, Automatic DCT	View 2009 911 ›
2009	Porsche 911	Turbo, 2D Coupe, Automatic	View 2009 911 ›
2009	Porsche 911	Turbo, 2D Coupe, Standard	View 2009 911 ›
2009	Porsche 911	Turbo, 2D Convertible, Standard	View 2009 911 ›
2009	Porsche 911	Turbo, 2D Convertible, Automatic	View 2009 911 ›
2009	Porsche 911	Targa 4S, Standard	View 2009 911 ›
2010	Porsche 911	Carrera 4S, 2D Convertible, Automatic DCT	View 2010 911 ›
2010	Porsche 911	Carrera 4S, 2D Convertible, Standard	View 2010 911 ›
2010	Porsche 911	Carrera 4S, 2D Coupe, Standard	View 2010 911 ›
2010	Porsche 911	Carrera 4S, 2D Coupe, Automatic DCT	View 2010 911 ›
2010	Porsche 911	Turbo, 2D Convertible, Automatic DCT	View 2010 911 ›
2010	Porsche 911	GT3	View 2010 911 ›
2010	Porsche 911	Turbo, 2D Convertible, Standard	View 2010 911 ›
2010	Porsche 911	Targa 4S, Automatic DCT	View 2010 911 ›
2010	Porsche 911	Targa 4S, Standard	View 2010 911 ›
2010	Porsche 911	Turbo, 2D Coupe, Standard	View 2010 911 ›
2010	Porsche 911	Turbo, 2D Coupe, Automatic DCT	View 2010 911 ›
2011	Porsche 911	Carrera 4S, 2D Coupe, Automatic DCT	View 2011 911 ›
2011	Porsche 911	Carrera 4S, 2D Coupe, Standard	View 2011 911 ›
2011	Porsche 911	Carrera 4S, 2D Convertible, Automatic DCT	View 2011 911 ›
2011	Porsche 911	Carrera GTS, 2D Coupe, Standard	View 2011 911 ›
2011	Porsche 911	Carrera 4S, 2D Convertible, Standard	View 2011 911 ›
2011	Porsche 911	Carrera GTS, 2D Coupe, Automatic DCT	View 2011 911 ›
2011	Porsche 911	Carrera GTS, 2D Convertible, Standard	View 2011 911 ›
2011	Porsche 911	Carrera GTS, 2D Convertible, Automatic DCT	View 2011 911 ›
2011	Porsche 911	GT3	View 2011 911 ›
2011	Porsche 911	Targa 4S, Automatic DCT	View 2011 911 ›
2011	Porsche 911	Speedster	View 2011 911 ›
2011	Porsche 911	Targa 4S, Standard	View 2011 911 ›
2011	Porsche 911	Turbo S, 2D Coupe	View 2011 911 ›
2011	Porsche 911	Turbo S, 2D Convertible	View 2011 911 ›
2011	Porsche 911	Turbo, 2D Convertible, Standard	View 2011 911 ›
2011	Porsche 911	Turbo, 2D Convertible, Automatic DCT	View 2011 911 ›
2011	Porsche 911	Turbo, 2D Coupe, Automatic DCT	View 2011 911 ›
2011	Porsche 911	Turbo, 2D Coupe, Standard	View 2011 911 ›
2012	Porsche 911	Carrera GTS, 2D Coupe, 3.8L Eng VIN B, Automatic DCT Trans	View 2012 911 ›
2012	Porsche 911	Carrera GTS, 2D Convertible, 3.8L Eng VIN B, Standard Trans	View 2012 911 ›
2012	Porsche 911	Carrera 4S, 2D Coupe, 3.8L Eng, Automatic DCT Trans	View 2012 911 ›
2012	Porsche 911	Carrera 4S, 2D Coupe, 3.8L Eng VIN B, Standard Trans	View 2012 911 ›
2012	Porsche 911	Carrera 4S, 2D Convertible, 3.8L Eng VIN B, Standard Trans	View 2012 911 ›
2012	Porsche 911	Carrera GTS, 2D Convertible, 3.8L Eng, Standard Trans	View 2012 911 ›
2012	Porsche 911	Carrera GTS, 2D Convertible, 3.8L Eng, Automatic DCT Trans	View 2012 911 ›
2012	Porsche 911	Carrera 4S, 2D Coupe, 3.8L Eng, Standard Trans	View 2012 911 ›
2012	Porsche 911	Carrera 4S, 2D Coupe, 3.8L Eng VIN B, Automatic DCT Trans	View 2012 911 ›
2012	Porsche 911	Carrera GTS, 2D Convertible, 3.8L Eng VIN B, Automatic DCT Trans	View 2012 911 ›
2012	Porsche 911	Carrera 4S, 2D Convertible, 3.8L Eng, Standard Trans	View 2012 911 ›
2012	Porsche 911	Carrera 4S, 2D Convertible, 3.8L Eng VIN B, Automatic DCT Trans	View 2012 911 ›
2012	Porsche 911	Carrera 4S, 2D Convertible, 3.8L Eng, Automatic DCT Trans	View 2012 911 ›
2012	Porsche 911	Carrera GTS, 2D Coupe, 3.8L Eng VIN B, Standard Trans	View 2012 911 ›
2012	Porsche 911	Carrera GTS, 2D Coupe, 3.8L Eng, Standard Trans	View 2012 911 ›
2012	Porsche 911	Carrera GTS, 2D Coupe, 3.8L Eng, Automatic DCT Trans	View 2012 911 ›
2012	Porsche 911	Targa 4S, 3.8L Eng VIN B, Automatic DCT Trans	View 2012 911 ›
2012	Porsche 911	Targa 4S, 3.8L Eng VIN B, Standard Trans	View 2012 911 ›
2012	Porsche 911	Targa 4S, 3.8L Eng, Automatic DCT Trans	View 2012 911 ›
2012	Porsche 911	Targa 4S, 3.8L Eng, Standard Trans	View 2012 911 ›
2012	Porsche 911	Turbo S, 2D Convertible, 3.8L Eng	View 2012 911 ›
2012	Porsche 911	Turbo S, 2D Convertible, 3.8L Eng VIN D	View 2012 911 ›
2012	Porsche 911	Turbo S, 2D Coupe, 3.8L Eng	View 2012 911 ›
2012	Porsche 911	Turbo S, 2D Coupe, 3.8L Eng VIN D	View 2012 911 ›
2012	Porsche 911	Turbo, 2D Convertible, 3.8L Eng VIN D, Automatic DCT Trans	View 2012 911 ›
2012	Porsche 911	Turbo, 2D Convertible, 3.8L Eng VIN D, Standard Trans	View 2012 911 ›
2012	Porsche 911	Turbo, 2D Convertible, 3.8L Eng, Automatic DCT Trans	View 2012 911 ›
2012	Porsche 911	Turbo, 2D Convertible, 3.8L Eng, Standard Trans	View 2012 911 ›
2012	Porsche 911	Turbo, 2D Coupe, 3.8L Eng VIN D, Automatic DCT Trans	View 2012 911 ›
2012	Porsche 911	Turbo, 2D Coupe, 3.8L Eng VIN D, Standard Trans	View 2012 911 ›
2012	Porsche 911	Turbo, 2D Coupe, 3.8L Eng, Automatic DCT Trans	View 2012 911 ›
2012	Porsche 911	Turbo, 2D Coupe, 3.8L Eng, Standard Trans	View 2012 911 ›
2013	Porsche 911	Turbo, 2D Convertible, 3.8L Eng, Automatic DCT Trans	View 2013 911 ›