205/75R13 tire size in inches

A 205/75R13 tire measures

25.1" tall × 8.1" wide

6.05" sidewall on a 13" wheel. 803 revolutions per mile.

205/75R13 means a tire 205 mm wide, with sidewalls 75% as tall as the tire is wide (154 mm), radial construction (R), for a 13 inch wheel.

25.1"13" rim6.1"8.1" wide
205/75R13: 25.1 inches tall, 8.1 inches wide, on a 13 inch rim, drawn to scale

205/75R13 specs

Overall diameter (height)25.11 inches (638 mm)
Section width8.07 inches (205 mm)
Sidewall height6.05 inches (154 mm)
Wheel (rim) diameter13 inches
Circumference78.9 inches (2,003 mm)
Revolutions per mile803
Revolutions per kilometer499
Approximate rim width5.5" to 7.0"
In inches (flotation style)25.1x8.1R13
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 205/75R13 on a 13" wheel

These 13" sizes are within 3% of 205/75R13's overall diameter, the range most tire shops treat as interchangeable.

SizeDiameterWidthDifferenceReal speed at 60
235/65R1325.03"9.25"−0.3%59.8 mphCompare
195/80R1325.28"7.68"+0.7%60.4 mphCompare
215/70R1324.85"8.46"−1.0%59.4 mphCompare
185/85R1325.38"7.28"+1.1%60.7 mphCompare
225/70R1325.40"8.86"+1.2%60.7 mphCompare
175/85R1324.71"6.89"−1.6%59.1 mphCompare
245/65R1325.54"9.65"+1.7%61.0 mphCompare
185/80R1324.65"7.28"−1.8%58.9 mphCompare
245/60R1324.57"9.65"−2.1%58.7 mphCompare
195/75R1324.52"7.68"−2.4%58.6 mphCompare
215/75R1325.70"8.46"+2.4%61.4 mphCompare
225/65R1324.52"8.86"−2.4%58.6 mphCompare

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

SizeWheelDiameterDifference
235/60R1414"25.10"0.0%Compare
285/45R1515"25.10"0.0%Compare
225/40R1818"25.09"−0.1%Compare
295/35R1717"25.13"+0.1%Compare
215/30R2020"25.08"−0.1%Compare
205/50R1717"25.07"−0.1%Compare
215/60R1515"25.16"+0.2%Compare
165/85R1414"25.04"−0.3%Compare
255/55R1414"25.04"−0.3%Compare
255/50R1515"25.04"−0.3%Compare
235/55R1515"25.18"+0.3%Compare
255/45R1616"25.04"−0.3%Compare

One size up or down

Compare 205/75R13 with another size

With 215/75R13 tires, when your speedometer says 60 mph you are really going

61.4 mph

215/75R13 is +0.59 inches (+2.4%) in overall diameter. That is within the 3% most shops and makers allow.

205/75R13215/75R13Difference%
Overall diameter25.11"25.70"+0.59"+2.4%
Section width8.07"8.46"+0.39"+4.9%
Sidewall height6.05"6.35"+0.30"+4.9%
Circumference78.87"80.73"+1.86"+2.4%
Revolutions per mile803.3784.8−18.5−2.3%

Questions

How tall is a 205/75R13 tire?
A 205/75R13 tire is 25.1 inches tall (638 mm), calculated from the size. It is 8.1 inches wide with 6.1 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
What does 205/75R13 mean?
205/75R13 means a tire 205 mm wide, with sidewalls 75% as tall as the tire is wide (154 mm), radial construction (R), for a 13 inch wheel.
How many revolutions per mile does a 205/75R13 tire make?
About 803 revolutions per mile, based on a circumference of 78.9 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
What rim width fits a 205/75R13 tire?
Roughly 5.5" to 7.0". Check the tire maker's approved rim range for the exact model before buying wheels.
Can I use 235/65R13 instead of 205/75R13?
235/65R13 is −0.08 inches (−0.3%) in overall diameter, so at an indicated 60 mph you would be doing 59.8 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.

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