345/55R19 tire size in inches

A 345/55R19 tire measures

33.9" tall × 13.6" wide

7.47" sidewall on a 19" wheel. 594 revolutions per mile.

345/55R19 means a tire 345 mm wide, with sidewalls 55% as tall as the tire is wide (190 mm), radial construction (R), for a 19 inch wheel.

33.9"19" rim7.5"13.6" wide
345/55R19: 33.9 inches tall, 13.6 inches wide, on a 19 inch rim, drawn to scale

345/55R19 specs

Overall diameter (height)33.94 inches (862 mm)
Section width13.58 inches (345 mm)
Sidewall height7.47 inches (190 mm)
Wheel (rim) diameter19 inches
Circumference106.6 inches (2,708 mm)
Revolutions per mile594
Revolutions per kilometer369
Approximate rim width10.0" to 11.5"
In inches (flotation style)33.9x13.6R19
Aspect ratio55%

Calculated from the size. Real tires differ by brand, model and tread depth, typically by a few tenths of an inch.

Sizes that can replace 345/55R19 on a 19" wheel

These 19" sizes are within 3% of 345/55R19's overall diameter, the range most tire shops treat as interchangeable.

SizeDiameterWidthDifferenceReal speed at 60
315/60R1933.88"12.40"−0.2%59.9 mphCompare
295/65R1934.10"11.61"+0.5%60.3 mphCompare
285/65R1933.59"11.22"−1.0%59.4 mphCompare
325/60R1934.35"12.80"+1.2%60.7 mphCompare
335/55R1933.51"13.19"−1.3%59.2 mphCompare
355/55R1934.37"13.98"+1.3%60.8 mphCompare
305/60R1933.41"12.01"−1.6%59.1 mphCompare
305/65R1934.61"12.01"+2.0%61.2 mphCompare
275/65R1933.07"10.83"−2.6%58.5 mphCompare
325/55R1933.07"12.80"−2.6%58.5 mphCompare
335/60R1934.83"13.19"+2.6%61.6 mphCompare
355/50R1932.98"13.98"−2.8%58.3 mphCompare

Same height on other wheel sizes (plus and minus sizing)

SizeWheelDiameterDifference
295/60R2020"33.94"0.0%Compare
285/80R1616"33.95"0.0%Compare
315/40R2424"33.92"−0.1%Compare
275/55R2222"33.91"−0.1%Compare
355/50R2020"33.98"+0.1%Compare
305/50R2222"34.01"+0.2%Compare
335/45R2222"33.87"−0.2%Compare
285/75R1717"33.83"−0.3%Compare
335/60R1818"33.83"−0.3%Compare
305/70R1717"33.81"−0.4%Compare
275/65R2020"34.07"+0.4%Compare
285/85R1515"34.07"+0.4%Compare

One size up or down

Compare 345/55R19 with another size

With 355/55R19 tires, when your speedometer says 60 mph you are really going

60.8 mph

355/55R19 is +0.43 inches (+1.3%) in overall diameter. That is within the 3% most shops and makers allow.

345/55R19355/55R19Difference%
Overall diameter33.94"34.37"+0.43"+1.3%
Section width13.58"13.98"+0.39"+2.9%
Sidewall height7.47"7.69"+0.22"+2.9%
Circumference106.63"107.99"+1.36"+1.3%
Revolutions per mile594.2586.7−7.5−1.3%

Questions

How tall is a 345/55R19 tire?
A 345/55R19 tire is 33.9 inches tall (862 mm), calculated from the size. It is 13.6 inches wide with 7.5 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
What does 345/55R19 mean?
345/55R19 means a tire 345 mm wide, with sidewalls 55% as tall as the tire is wide (190 mm), radial construction (R), for a 19 inch wheel.
How many revolutions per mile does a 345/55R19 tire make?
About 594 revolutions per mile, based on a circumference of 106.6 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
What rim width fits a 345/55R19 tire?
Roughly 10.0" to 11.5". Check the tire maker's approved rim range for the exact model before buying wheels.
Can I use 315/60R19 instead of 345/55R19?
315/60R19 is −0.06 inches (−0.2%) in overall diameter, so at an indicated 60 mph you would be doing 59.9 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.

Browse