145/80R12 In Inches – Tire Size & Rim Fitment Guide


What size tire is 145/80R12 in Inches?

The 145/80R12 tire has an overall diameter of 21.1 inches, a section width of 5.7 inches, and can be mounted on 12 x 3.5-5.0 inches rim. The equivalent tire size in the high flotation system is 21.1x5.7R12.

InchesMillimeters
Tire Diameter21.1536.8
Section Width5.7145
Rim Height12305
Sidewall Height4.6116
Circumference66.41686.4
tire diameter
5.7"
21.1"
Tire Side
Tire Circumference
66.4"
12"
4.6"
954.3 Revs/Mile

To make it clear, we'll break down each part of the 145/80R12 tire size to know what these numbers represent & how they may affect your vehicle tire's performance:



How tall is a 145/80R12 tire?

A 145/80R12 tire has a height of 21.1 inches (536.8 mm). This is the measurement from the bottom to the highest point at the top of a tire through its exact center when inflated and no load.

Tire Diameter
Tire diameter: 21.1 In.


How wide is a 145/80R12 tire?

The 145/80R12 has a width of 5.7 inches (145 mm). This is the tire measurement at its thickest point, the distance between the inner sidewall’s and the outer sidewall’s widest point, also known as section width or tread width.

tread width
Tread width: 5.7 In.


145/80R12 sidewall height

The sidewall height of a 145/80R12 is 4.6 inches (116 mm). It’s measured from the rim to the outer edge of the tire's tread, expressed as a percentage of tire width.

sidewall height
Sidewall height: 4.6 In.


What size rim do I need for 145/80R12 tire?

You can put on a rim with a height of 12 inches and a rim width ranging from 3.5-5.0 inches for a 145/80R12 tire. (Based on recommendations of The Tire and Rim Association (TRA))

Putting very wide tires on narrow rims or vice versa can result in reduced performance of the tire.

Rim Diameter
Rim height: 12 In.
rim width
Rim width: 3.5-5.0 In.


145/80R12 circumference

The 145/80R12 tire has a circumference of 66.4 inches (1686.4 mm), This is the measurement of the distance the tire covers in one full rotation.

The tire circumference is important for your vehicle's overall performance, affecting its speedometer accuracy, acceleration & fuel efficiency.

Circumference
Circumference: 66.4 In.


145/80R12 Revolutions

The 145/80R12 performs 954.3 revs/mile. Revolutions per mile indicate the number of times a tire rotates while it covers the distance of one mile.

Revolutions
954.3 revs/mile


Alternative Tire Sizes for 145/80R12

As a rule, you can replace the tire within a 3% difference in tire diameter (height) of the OEM tire size. Here is the full list of replacement sizes compatible with 145/80R12:

Tire SizeDiameterRim (H x W)
185/60R1321.7″ (+2.8%)13″ x 5.0-6.5″
185/45R1521.6″ (+2.3%)15″ x 6.0-7.0″
135/80R1321.5″ (+1.9%)13″ x 3.5-4.5″
155/70R1321.5″ (+1.9%)13″ x 4.0-5.0″
215/50R1321.5″ (+1.9%)13″ x 5.5-8.5″
165/50R1521.5″ (+1.9%)15″ x 4.5-6.0″
165/65R1321.4″ (+1.4%)13″ x 4.5-6.0″
195/55R1321.4″ (+1.4%)13″ x 5.5-7.0″
145/65R1421.4″ (+1.4%)14″ x 4.0-5.0″
175/60R1321.3″ (+0.9%)13″ x 5.0-6.0″
185/50R1421.3″ (+0.9%)14″ x 5.0-6.5″
205/45R1421.3″ (+0.9%)14″ x 6.5-7.5″
115/70R1521.3″ (+0.9%)15″ x n/a
165/70R1221.1″ (Equal)12″ x 4.0-5.5″
205/50R1321.1″ (Equal)13″ x 5.5-7.5″
165/55R1421.1″ (Equal)14″ x 4.5-6.0″
225/40R1421.1″ (Equal)14″ x 7.5-9.0″
145/70R1321″ (-0.5%)13″ x 3.5-5.0″
185/55R1321″ (-0.5%)13″ x n/a
225/45R1321″ (-0.5%)13″ x 7.0-8.5″
255/40R1321″ (-0.5%)13″ x n/a
255/35R1421″ (-0.5%)14″ x 8.5-10.0″
125/80R1320.9″ (-1%)13″ x 3.0-4.0″
155/65R1320.9″ (-1%)13″ x 4.5-5.5″
125/70R1420.9″ (-1%)14″ x n/a
175/50R1420.9″ (-1%)14″ x 5.0-6.0″
195/45R1420.9″ (-1%)14″ x 6.0-7.5″
165/60R1320.8″ (-1.4%)13″ x 4.5-6.0″
215/40R1420.8″ (-1.4%)14″ x 7.0-8.5″
105/70R1520.8″ (-1.4%)15″ x n/a
165/45R1520.8″ (-1.4%)15″ x 5.0-6.0″
155/55R1420.7″ (-1.9%)14″ x 4.5-5.5″
175/55R1320.6″ (-2.4%)13″ x 5.0-6.0″
135/80R1220.5″ (-2.9%)12″ x 3.5-4.5″
155/70R1220.5″ (-2.9%)12″ x 4.0-5.0″
165/50R1420.5″ (-2.9%)14″ x n/a

More tire sizes for 12" Wheel:

19" Tire Diameter

20" Tire Diameter

21" Tire Diameter

*Disclaimer: Please note that our tire dimensions & measurements are an approximation number, while the tire manufacturers may have different ways in calculating or rounding numbers. We recommend referring to the vehicle manufacturer's manual or checking with the tire technician to find out the correct tire size for your vehicle.


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