35x12.50R18 Tire Size in Metric

35.0" tall, 12.5" wide on a 18" wheel

Diameter35.0"889 mm
Overall diameter35.0"889 mm
Section width12.5"318 mm
Sidewall height8.5"216 mm
Circumference110.0"2793 mm
Revolutions per mile576358 per km
Wheel diameter18"flotation size

A 35x12.50R18 tire is 35.0 inches tall and 12.5 inches wide and mounts on a 18-inch wheel, which leaves a 8.5-inch sidewall. It turns about 576 times per mile.

Metric sizes within half an inch of its height are 285/75R18 (34.8"), 305/70R18 (34.8"), 265/80R18 (34.7"), 275/80R18 (35.3"), 315/70R18 (35.4"), 325/65R18 (34.6"), 295/75R18 (35.4"), 275/60R22 (35.0"). Metric tires are usually a little narrower than the flotation width suggests, so compare widths before you buy.

The size most often compared with it is 285/75R18, which is 0.2" shorter (−0.5%). At an indicated 60 mph you would be doing 59.7 mph on it.

35x12.50R18
285/75R18
Diameter difference−0.48%diameter 35.00" → 34.83"
CurrentNew
CurrentNewDifference

Speedometer

ShowsActual speed

Gear ratio to match

–enter your current axle ratio

Sizes near 35x12.50R18

Same 18" wheel, within 20 mm of width and 10 points of aspect ratio.

SizeDiameterWidthSidewallvs 35x12.50R18
305/70R1834.8"12.0"8.4"−0.5%compare
315/70R1835.4"12.4"8.7"+1.0%
325/65R1834.6"12.8"8.3"−1.0%
315/65R1834.1"12.4"8.1"−2.5%
325/70R1835.9"12.8"9.0"+2.6%
305/75R1836.0"12.0"9.0"+2.9%
305/65R1833.6"12.0"7.8"−4.0%
325/60R1833.4"12.8"7.7"−4.7%
37x12.50R1837.0"12.5"9.5"+5.7%
33x12.50R1833.0"12.5"7.5"−5.7%

Same height on a different wheel

Sizes within 2% of 35.0" on 17" or 20" wheels.

SizeDiameterWidthSidewallvs 35x12.50R18
35x11.50R1735.0"11.5"9.0"±0.0%
35x11.50R2035.0"11.5"7.5"±0.0%
35x12.50R1735.0"12.5"9.0"±0.0%
35x12.50R2035.0"12.5"7.5"±0.0%
35x13.50R2035.0"13.5"7.5"±0.0%
305/75R1735.0"12.0"9.0"+0.0%

Metric equivalents of 35x12.50R18

SizeDiameterWidthSidewallvs 35x12.50R18
285/75R1834.8"11.2"8.4"−0.5%compare
305/70R1834.8"12.0"8.4"−0.5%compare
265/80R1834.7"10.4"8.3"−0.9%
275/80R1835.3"10.8"8.7"+0.9%
315/70R1835.4"12.4"8.7"+1.0%
325/65R1834.6"12.8"8.3"−1.0%
295/75R1835.4"11.6"8.7"+1.2%
275/60R2235.0"10.8"6.5"−0.0%

Speedometer with a different size

Actual speed when the speedometer is calibrated for 35x12.50R18.

Speedometer showson 285/75R18on 295/70R18on 305/70R18
30 mph29.9 mph29.4 mph29.8 mph
45 mph44.8 mph44.0 mph44.8 mph
60 mph59.7 mph58.7 mph59.7 mph
70 mph69.7 mph68.5 mph69.6 mph

35x12.50R18 comparisons

35x12.50R18 FAQ

How tall is a 35x12.50R18 tire?

35.0 inches (889 mm), with a 8.5-inch sidewall on a 18-inch wheel.

What is 35x12.50R18 in metric?

Metric sizes of about the same height are 285/75R18 (34.8"), 305/70R18 (34.8"), 265/80R18 (34.7"), 275/80R18 (35.3").

How many revolutions per mile does a 35x12.50R18 make?

About 576, or 358 per kilometer.