175/75R13 tire size in inches

A 175/75R13 tire measures

23.3" tall × 6.9" wide

5.17" sidewall on a 13" wheel. 864 revolutions per mile.

175/75R13 means a tire 175 mm wide, with sidewalls 75% as tall as the tire is wide (131 mm), radial construction (R), for a 13 inch wheel.

23.3"13" rim5.2"6.9" wide
175/75R13: 23.3 inches tall, 6.9 inches wide, on a 13 inch rim, drawn to scale

175/75R13 specs

Overall diameter (height)23.33 inches (593 mm)
Section width6.89 inches (175 mm)
Sidewall height5.17 inches (131 mm)
Wheel (rim) diameter13 inches
Circumference73.3 inches (1,862 mm)
Revolutions per mile864
Revolutions per kilometer537
Approximate rim width4.5" to 6.0"
In inches (flotation style)23.3x6.9R13
Aspect ratio75%

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 175/75R13 on a 13" wheel

These 13" sizes are within 3% of 175/75R13's overall diameter, the range most tire shops treat as interchangeable.

SizeDiameterWidthDifferenceReal speed at 60
155/85R1323.37"6.10"+0.2%60.1 mphCompare
165/80R1323.39"6.50"+0.3%60.2 mphCompare
185/70R1323.20"7.28"−0.6%59.6 mphCompare
205/65R1323.49"8.07"+0.7%60.4 mphCompare
215/60R1323.16"8.46"−0.8%59.5 mphCompare
225/60R1323.63"8.86"+1.3%60.8 mphCompare
195/65R1322.98"7.68"−1.5%59.1 mphCompare
195/70R1323.75"7.68"+1.8%61.1 mphCompare
155/80R1322.76"6.10"−2.4%58.5 mphCompare
165/75R1322.74"6.50"−2.5%58.5 mphCompare
185/75R1323.93"7.28"+2.5%61.5 mphCompare
145/85R1322.70"5.71"−2.7%58.4 mphCompare

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

SizeWheelDiameterDifference
235/45R1515"23.33"0.0%Compare
215/55R1414"23.31"−0.1%Compare
195/35R1818"23.37"+0.2%Compare
185/50R1616"23.28"−0.2%Compare
175/60R1515"23.27"−0.3%Compare
235/40R1616"23.40"+0.3%Compare
205/45R1616"23.26"−0.3%Compare
225/25R1919"23.43"+0.4%Compare
215/25R1919"23.23"−0.4%Compare
165/65R1515"23.44"+0.5%Compare
195/55R1515"23.44"+0.5%Compare
205/40R1717"23.46"+0.5%Compare

One size up or down

Compare 175/75R13 with another size

With 185/75R13 tires, when your speedometer says 60 mph you are really going

61.5 mph

185/75R13 is +0.59 inches (+2.5%) in overall diameter. That is within the 3% most shops and makers allow.

175/75R13185/75R13Difference%
Overall diameter23.33"23.93"+0.59"+2.5%
Section width6.89"7.28"+0.39"+5.7%
Sidewall height5.17"5.46"+0.30"+5.7%
Circumference73.31"75.16"+1.86"+2.5%
Revolutions per mile864.3843.0−21.3−2.5%

Questions

How tall is a 175/75R13 tire?
A 175/75R13 tire is 23.3 inches tall (593 mm), calculated from the size. It is 6.9 inches wide with 5.2 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
What does 175/75R13 mean?
175/75R13 means a tire 175 mm wide, with sidewalls 75% as tall as the tire is wide (131 mm), radial construction (R), for a 13 inch wheel.
How many revolutions per mile does a 175/75R13 tire make?
About 864 revolutions per mile, based on a circumference of 73.3 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
What rim width fits a 175/75R13 tire?
Roughly 4.5" to 6.0". Check the tire maker's approved rim range for the exact model before buying wheels.
Can I use 155/85R13 instead of 175/75R13?
155/85R13 is +0.04 inches (+0.2%) 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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