| Tire Size | Diameter | Rim (H x W) |
| 135/80R12 | 20.5″ (+2.9%) | 12″ x 3.5-4.5″ |
| 155/70R12 | 20.5″ (+2.9%) | 12″ x 4.0-5.0″ |
| 165/50R14 | 20.5″ (+2.9%) | 14″ x n/a |
| 135/70R13 | 20.4″ (+2.5%) | 13″ x 3.5-4.5″ |
| 145/65R13 | 20.4″ (+2.5%) | 13″ x n/a |
| 115/70R14 | 20.3″ (+2%) | 14″ x n/a |
| 165/55R13 | 20.1″ (+1%) | 13″ x 4.5-6.0″ |
| 195/40R14 | 20.1″ (+1%) | 14″ x 6.5-7.5″ |
| 145/70R12 | 20″ (+0.5%) | 12″ x 3.5-5.0″ |
| 145/60R13 | 19.9″ (Equal) | 13″ x 4.0-5.0″ |
| 175/50R13 | 19.9″ (Equal) | 13″ x 5.0-6.0″ |
| 195/45R13 | 19.9″ (Equal) | 13″ x 6.0-7.5″ |
| 165/60R12 | 19.8″ (-0.5%) | 12″ x 4.5-6.0″ |
| 105/70R14 | 19.8″ (-0.5%) | 14″ x n/a |
| 105/80R13 | 19.6″ (-1.5%) | 13″ x n/a |
125/80R12 In Inches – Tire Size & Wheel Fitment Guide
What tire size is 125/80R12 in Inches?
The 125/80R12 tire has an overall diameter of 19.9 inches, a section width of 4.9 inches, and can be mounted on 12 inches height of rim. The equivalent tire size in the high flotation system is 19.9x4.9R12.
| Inches | Millimeters | |
| Tire Diameter | 19.9 | 504.8 |
| Section Width | 4.9 | 125 |
| Rim Height | 12 | 305 |
| Sidewall Height | 3.9 | 100 |
| Circumference | 62.4 | 1585.9 |
4.9"
19.9"
62.4"
12"
3.9"
1014.8 Revs/Mile
To make it clear, we'll break down each part of the 125/80R12 tire size to know what these numbers represent & how they may affect your tire's performance:
How big is a 125/80R12 tire?
A 125/80R12 tire has a height of 19.9 inches (504.8 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 unloaded.
How wide is a 125/80R12 tire?
The 125/80R12 tire has a width of 4.9 inches (125 mm). This is the measurement at its thickest point, the distance between the outer sidewall and the inner sidewall’s widest point, also called as tread width or section width.
You can put a slightly narrower or wider tire on a rim as long as it falls within the manufacturer's recommended tire width range.
125/80R12 sidewall height
The 125/80R12 has a sidewall height of 3.9 inches (100 mm). It’s measured from the rim to the outer edge of the tire's tread, expressed as a percentage of tire width.
What size rim do I need for 125/80R12 tire?
You can mount the 125/80R12 tire on a rim with a height of 12 inches.
Putting very narrow tires on wide rims or vice versa can result in reduced performance of the tire.
125/80R12 circumference
The 125/80R12 tire has a circumference of 62.4 inches (1585.9 mm), This is the measurement of the distance the tire travels in one revolution.
The tire circumference is important for your vehicle's overall performance, affecting its speedometer acceleration, accuracy and fuel efficiency.
125/80R12 Revolutions
The 125/80R12 performs 1014.8 revs/mile. Revolutions per mile indicate the number of times a tire rotates while it covers the distance of one mile.
Compatible Tire Sizes for 125/80R12
As a rule, you can replace the tire within a 3% difference in tire diameter (height) of the OEM tire size. However, it should be considered as a general guideline, not a hard and fast rule. Here is a list of compatible tire sizes for 125/80R12:
*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.