145/80R13 tire size in inches

A 145/80R13 tire measures

22.1" tall × 5.7" wide

4.57" sidewall on a 13" wheel. 911 revolutions per mile.

145/80R13 means a tire 145 mm wide, with sidewalls 80% as tall as the tire is wide (116 mm), radial construction (R), for a 13 inch wheel.

22.1"13" rim4.6"5.7" wide
145/80R13: 22.1 inches tall, 5.7 inches wide, on a 13 inch rim, drawn to scale

145/80R13 specs

Overall diameter (height)22.13 inches (562 mm)
Section width5.71 inches (145 mm)
Sidewall height4.57 inches (116 mm)
Wheel (rim) diameter13 inches
Circumference69.5 inches (1,766 mm)
Revolutions per mile911
Revolutions per kilometer566
Approximate rim width3.5" to 5.0"
In inches (flotation style)22.1x5.7R13
Aspect ratio80%

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 145/80R13 on a 13" wheel

These 13" sizes are within 3% of 145/80R13's overall diameter, the range most tire shops treat as interchangeable.

SizeDiameterWidthDifferenceReal speed at 60
155/75R1322.15"6.10"+0.1%60.1 mphCompare
165/70R1322.09"6.50"−0.2%59.9 mphCompare
195/60R1322.21"7.68"+0.4%60.2 mphCompare
185/65R1322.47"7.28"+1.5%60.9 mphCompare
175/70R1322.65"6.89"+2.3%61.4 mphCompare
205/60R1322.69"8.07"+2.5%61.5 mphCompare
145/85R1322.70"5.71"+2.6%61.5 mphCompare
165/75R1322.74"6.50"+2.8%61.7 mphCompare
155/80R1322.76"6.10"+2.8%61.7 mphCompare

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

SizeWheelDiameterDifference
195/40R1616"22.14"0.0%Compare
165/55R1515"22.15"+0.1%Compare
185/35R1717"22.10"−0.2%Compare
185/55R1414"22.01"−0.6%Compare
205/45R1515"22.26"+0.6%Compare
175/60R1414"22.27"+0.6%Compare
185/50R1515"22.28"+0.7%Compare
195/35R1717"22.37"+1.1%Compare
165/65R1414"22.44"+1.4%Compare
195/55R1414"22.44"+1.4%Compare
205/40R1616"22.46"+1.5%Compare
155/70R1414"22.54"+1.8%Compare

One size up or down

Compare 145/80R13 with another size

With 155/80R13 tires, when your speedometer says 60 mph you are really going

61.7 mph

155/80R13 is +0.63 inches (+2.8%) in overall diameter. That is within the 3% most shops and makers allow.

145/80R13155/80R13Difference%
Overall diameter22.13"22.76"+0.63"+2.8%
Section width5.71"6.10"+0.39"+6.9%
Sidewall height4.57"4.88"+0.31"+6.9%
Circumference69.54"71.51"+1.98"+2.8%
Revolutions per mile911.2886.0−25.2−2.8%

Questions

How tall is a 145/80R13 tire?
A 145/80R13 tire is 22.1 inches tall (562 mm), calculated from the size. It is 5.7 inches wide with 4.6 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
What does 145/80R13 mean?
145/80R13 means a tire 145 mm wide, with sidewalls 80% as tall as the tire is wide (116 mm), radial construction (R), for a 13 inch wheel.
How many revolutions per mile does a 145/80R13 tire make?
About 911 revolutions per mile, based on a circumference of 69.5 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
What rim width fits a 145/80R13 tire?
Roughly 3.5" to 5.0". Check the tire maker's approved rim range for the exact model before buying wheels.
Can I use 155/75R13 instead of 145/80R13?
155/75R13 is +0.02 inches (+0.1%) in overall diameter, so at an indicated 60 mph you would be doing 60.1 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.

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