T145/80R20 Spare Tire

T145/80R20 is a spare tire with a radial construction that requires a 20" wheel. It is designed to provide temporary mobility for your vehicle in the event of a flat tire due to puncture. T145/80R20 spare fits a variety of vehicles with tire diameter range of 28.2" to 30" tall.

If you need a spare tire cover, you need to know the tire diameter. T145/80R20 spare has a diameter of 29.1 inches.

How to read T145/80R20 spare tire size?

T145/80R20 is a Temporary Spare tire that is designed as a short term solution intended for emergency use only. Let's take a closer look at each aspect of T145/80R20 tire dimensions.

T stands for temporary spare tire type. 145 is the width of the tire in millimeters. This tire is 145 mm wide from one sidewall to the other. 80 is the aspect ratio. It represents the height of the sidewall as a percentage of the tire's width. In this case, the sidewall height of the tire is 80% of its width. 20 is the diameter of the wheel in inches. This tire is designed to fit on a 20-inch wheel.

What tires can be temporarily replaced with a T145/80R20 spare?

T145/80R20 spare should only be used as a replacement for a tire of similar size. Since this is a 20-inch tire, it should ideally be used as a replacement for another 20-inch tire. However, it could potentially be used as a temporary replacement for any tire, as long as its overall diameter is not significantly different from the original tire.

It is important to note that spare tires have a speed limit, and should not be driven for long distances.

OEM Tire Size	Diameter Differential
P265/70R15	1.8%
P225/75R15	-2.8%
265/70R15	1.8%
P235/75R15	-0.9%
P245/70R15	-2%
P215/75R16	-1.6%
P255/65R16	-0.3%
P245/70R16	1.4%
P235/70R16	-0.5%
255/65R16	-0.3%
P235/75R16	2.4%
P225/75R16	0.5%
P225/70R16	-2.4%
235/70R16	-0.5%
195/80R16	-3%
225/70R16	-2.4%
205/80R16	-0.8%
205R16	0.3%
P245/65R17	1.4%
P235/70R17	3%
225/65R17	-2.2%
P235/65R17	-0.3%
P215/70R17	-0.8%
275/55R17	-0.8%
P225/65R17	-2.2%
255/60R17	-0.3%
235/70R17	3%
235/65R17	-0.3%
P265/60R17	1.4%
P265/55R17	-2.2%
245/65R17	1.4%
P255/60R17	-0.3%
P275/60R17	3%
P245/55R18	-1.8%
P275/55R18	2.6%
P235/60R18	-0.1%
245/55R18	-1.8%
235/60R18	-0.1%
225/60R18	-1.8%
P295/45R18	-2.3%
P225/60R18	-1.8%
P245/60R18	1.5%
245/60R18	1.5%
P255/55R18	-0.4%
255/55R18	-0.4%
285/50R18	0.4%
P225/55R19	-1.2%
P255/50R19	-0.1%
P235/55R19	0.1%
P315/40R19	-0.7%
345/35R19	-2%
P245/50R19	-1.5%
P245/55R19	1.8%
295/40R19	-2.8%
285/45R19	-0.1%
P235/50R19	-2.8%
255/50R19	-0.1%
265/50R19	1.2%
235/55R19	0.1%
275/45R19	-1.2%
235/50R19	-2.8%
275/50R19	2.6%
245/55R19	1.8%
265/45R19	-2.6%
225/55R19	-1.2%
295/45R19	1.2%
245/50R19	-1.5%
245/45R20	-1.6%
P255/45R20	-0.3%
255/45R20	-0.3%
245/50R20	1.9%
P275/45R20	2.2%
235/50R20	0.5%
235/45R20	-2.7%
295/40R20	0.5%
305/40R20	1.6%
315/35R20	-1.6%
325/35R20	-0.5%
P295/40R20	0.5%
275/40R20	-1.6%
275/45R20	2.2%
265/40R20	-2.7%
305/35R20	-2.4%
P245/50R20	1.9%
285/40R20	-0.5%
P245/45R20	-1.6%
265/45R20	0.8%
315/30R21	-2.3%
305/35R21	0.9%
315/35R21	1.8%
325/30R21	-1.5%
285/40R21	2.8%
335/30R21	-0.7%
295/35R21	-0.1%
225/45R21	-0.7%
265/35R21	-2.8%
275/35R21	-2%
245/45R21	1.8%
255/40R21	-0.4%
245/40R21	-1.5%
265/40R21	0.7%
285/35R21	-0.9%
275/40R21	1.8%
235/45R21	0.7%
265/35R22	0.7%
255/35R22	-0.4%
285/30R22	-1.2%
275/35R22	1.5%
315/30R22	1.2%
285/35R22	2.6%
295/30R22	-0.4%

What vehicles can use T145/80R20 spare tire?

There are 407 vehicle models that can potentially use T145/80R20 as a spare tire. It is important to note that spare tire should match the specifications of the vehicle it is used on. T145/80R20 spare should ideally have the same or higher load index to ensure adequate load capacity to be able to carry your vehicle's weight. It is best to consult your vehicle's owner manual or contact the manufacturer to determine if T145/80R20 spare tire is appropriate for your vehicle.

All listed guides, data and/or calculations are for informational purposes only. Spare-Tires.com does not warrant or make any representations regarding the accuracy of or the results of the use of this information.