125/80R12 Tires

125/80R12 Conversion

When converted to inches, 125/80R12 is equivalent to 19.9x4.9R12.

125/80R12 tire has a section width of 4.9 inches which is the measurement of tire's width from its inner sidewall to its outer sidewall. Rim diameter of 12 inches represents the size of the wheel the tire can be mounted on. Sidewall height of 3.9 inches (100 mm) is the measurement from the wheel rim to top of the tire tread. Overall diameter of 19.9 inches (505 mm) reflects the outer diameter of the tire and stands for tire height. Circumference of 62.5 inches (1585.7 mm) is the outer perimeter of the tire. Tire revolutions indicate the number of times a tire revolves while it covers the distance in miles or kilometers. 125/80R12 tire makes 1014 revolutions per mile (631 revolutions per kilometer).

125/80R12 Section Width
4.9"
19.9"
125/80R12 Tire Side
Tire Circumference
62.5"
12"
3.9"
1014 Revs/Mile
Metric Inches
Overall Diameter (Tire Height) 505 mm 19.9"
Tread Width 125 mm 4.9"
Rim Diameter 304.8 mm 12"
Sidewall Height 100 mm 3.9"
Circumference 1585.7 mm 62.5"
Revolutions 631 per km 1014 per mile

125/80R12 Replacement Tire Sizes

Replacement tires have to be within 3% of the original tire's overall diameter. 125/80R12 tire can be replaced with 12 compatible tire sizes. Select optional plus size to see its specs.

Tire Size Overall Diameter Difference
105/80R13 19.6" (498 mm) -1.4%
165/60R12 19.8" (503 mm) -0.4%
105/70R14 19.8" (504 mm) -0.2%
145/60R13 19.8" (504 mm) -0.2%
175/50R13 19.9" (506 mm) 0.2%
195/45R13 19.9" (506 mm) 0.2%
145/70R12 20" (509 mm) 0.8%
165/55R13 20.2" (512 mm) 1.4%
195/40R14 20.2" (512 mm) 1.4%
145/65R13 20.4" (518 mm) 2.6%
115/70R14 20.4" (518 mm) 2.6%
135/70R13 20.5" (520 mm) 3%