345/30R18 Tires

345/30R18 Conversion

When converted to inches, 345/30R18 is equivalent to 26.2x13.6R18.

345/30R18 tire has a section width of 13.6 inches which is the measurement of tire's width from its inner sidewall to its outer sidewall. Rim diameter of 18 inches represents the size of the wheel the tire can be mounted on. Sidewall height of 4.1 inches (104 mm) is the measurement from the wheel rim to top of the tire tread. Overall diameter of 26.2 inches (665 mm) reflects the outer diameter of the tire and stands for tire height. Circumference of 82.3 inches (2088.1 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. 345/30R18 tire makes 770 revolutions per mile (479 revolutions per kilometer).

345/30R18 Section Width
13.6"
26.2"
345/30R18 Tire Side
Tire Circumference
82.3"
18"
4.1"
770 Revs/Mile
Metric Inches
Overall Diameter (Tire Height) 665 mm 26.2"
Tread Width 345 mm 13.6"
Rim Diameter 457.2 mm 18"
Sidewall Height 104 mm 4.1"
Circumference 2088.1 mm 82.3"
Revolutions 479 per km 770 per mile

345/30R18 Replacement Tire Sizes

Replacement tires have to be within 3% of the original tire's overall diameter. 345/30R18 tire can be replaced with 62 compatible tire sizes. Select optional plus size to see its specs.

Tire Size Overall Diameter Difference
275/25R20 25.4" (646 mm) -2.9%
135/70R18 25.5" (647 mm) -2.7%
235/35R19 25.5" (647 mm) -2.7%
315/30R18 25.5" (647 mm) -2.7%
275/30R19 25.6" (649 mm) -2.4%
275/35R18 25.6" (649 mm) -2.4%
235/30R20 25.6" (650 mm) -2.3%
285/25R20 25.6" (650 mm) -2.3%
215/45R18 25.6" (651 mm) -2.1%
335/25R19 25.6" (651 mm) -2.1%
245/40R18 25.7" (653 mm) -1.8%
245/35R19 25.8" (655 mm) -1.5%
215/40R19 25.8" (655 mm) -1.5%
285/30R19 25.8" (655 mm) -1.5%
245/30R20 25.8" (656 mm) -1.4%
295/25R20 25.8" (656 mm) -1.4%
285/35R18 25.9" (657 mm) -1.2%
225/45R18 25.9" (659 mm) -0.9%
125/70R19 25.9" (659 mm) -0.9%
335/30R18 25.9" (659 mm) -0.9%
305/25R20 26" (660 mm) -0.8%
255/35R19 26" (661 mm) -0.6%
255/40R18 26" (661 mm) -0.6%
145/70R18 26" (661 mm) -0.6%
185/55R18 26" (661 mm) -0.6%
355/25R19 26" (661 mm) -0.6%
295/30R19 26" (661 mm) -0.6%
255/30R20 26.1" (662 mm) -0.5%
295/35R18 26.1" (663 mm) -0.3%
205/50R18 26.1" (663 mm) -0.3%
225/40R19 26.1" (663 mm) -0.3%
225/35R20 26.2" (666 mm) 0.2%
315/25R20 26.2" (666 mm) 0.2%
305/30R19 26.3" (667 mm) 0.3%
265/30R20 26.3" (668 mm) 0.5%
235/45R18 26.3" (669 mm) 0.6%
265/40R18 26.3" (669 mm) 0.6%
265/35R19 26.3" (669 mm) 0.6%
325/25R20 26.4" (670 mm) 0.8%
235/40R19 26.4" (671 mm) 0.9%
305/35R18 26.4" (671 mm) 0.9%
235/35R20 26.5" (672 mm) 1.1%
315/30R19 26.5" (673 mm) 1.2%
135/80R18 26.5" (673 mm) 1.2%
135/70R19 26.5" (673 mm) 1.2%
215/50R18 26.5" (673 mm) 1.2%
275/30R20 26.5" (674 mm) 1.4%
275/35R19 26.6" (675 mm) 1.5%
155/70R18 26.6" (675 mm) 1.5%
335/25R20 26.6" (676 mm) 1.7%
315/35R18 26.7" (677 mm) 1.8%
245/45R18 26.7" (677 mm) 1.8%
275/40R18 26.7" (677 mm) 1.8%
245/40R19 26.7" (679 mm) 2.1%
325/30R19 26.7" (679 mm) 2.1%
285/30R20 26.8" (680 mm) 2.3%
245/35R20 26.8" (680 mm) 2.3%
345/25R20 26.8" (680 mm) 2.3%
145/60R20 26.9" (682 mm) 2.6%
225/50R18 26.9" (683 mm) 2.7%
285/35R19 26.9" (683 mm) 2.7%
205/55R18 26.9" (683 mm) 2.7%