215/65R15 tire size in inches

A 215/65R15 tire measures

26.0" tall × 8.5" wide

5.50" sidewall on a 15" wheel. 776 revolutions per mile.

215/65R15 means a tire 215 mm wide, with sidewalls 65% as tall as the tire is wide (140 mm), radial construction (R), for a 15 inch wheel.

26.0"15" rim5.5"8.5" wide
215/65R15: 26.0 inches tall, 8.5 inches wide, on a 15 inch rim, drawn to scale

215/65R15 specs

Overall diameter (height)26.00 inches (660 mm)
Section width8.46 inches (215 mm)
Sidewall height5.50 inches (140 mm)
Wheel (rim) diameter15 inches
Circumference81.7 inches (2,075 mm)
Revolutions per mile776
Revolutions per kilometer482
Approximate rim width5.5" to 7.0"
In inches (flotation style)26.0x8.5R15
Aspect ratio65%

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 215/65R15 on a 15" wheel

These 15" sizes are within 3% of 215/65R15's overall diameter, the range most tire shops treat as interchangeable.

SizeDiameterWidthDifferenceReal speed at 60
175/80R1526.02"6.89"+0.1%60.0 mphCompare
165/85R1526.04"6.50"+0.2%60.1 mphCompare
255/55R1526.04"10.04"+0.2%60.1 mphCompare
185/75R1525.93"7.28"−0.3%59.8 mphCompare
235/60R1526.10"9.25"+0.4%60.2 mphCompare
275/50R1525.83"10.83"−0.7%59.6 mphCompare
285/50R1526.22"11.22"+0.8%60.5 mphCompare
195/70R1525.75"7.68"−1.0%59.4 mphCompare
205/70R1526.30"8.07"+1.1%60.7 mphCompare
225/60R1525.63"8.86"−1.4%59.1 mphCompare
245/55R1525.61"9.65"−1.5%59.1 mphCompare
265/55R1526.48"10.43"+1.8%61.1 mphCompare

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

SizeWheelDiameterDifference
305/25R2020"26.00"0.0%Compare
255/25R2121"26.02"+0.1%Compare
355/25R1919"25.99"−0.1%Compare
255/30R2020"26.02"+0.1%Compare
195/65R1616"25.98"−0.1%Compare
235/65R1414"26.03"+0.1%Compare
255/35R1919"26.03"+0.1%Compare
255/40R1818"26.03"+0.1%Compare
285/40R1717"25.98"−0.1%Compare
225/45R1818"25.97"−0.1%Compare
255/45R1717"26.04"+0.1%Compare
255/50R1616"26.04"+0.1%Compare

One size up or down

Compare 215/65R15 with another size

With 225/65R15 tires, when your speedometer says 60 mph you are really going

61.2 mph

225/65R15 is +0.51 inches (+2.0%) in overall diameter. That is within the 3% most shops and makers allow.

215/65R15225/65R15Difference%
Overall diameter26.00"26.52"+0.51"+2.0%
Section width8.46"8.86"+0.39"+4.7%
Sidewall height5.50"5.76"+0.26"+4.7%
Circumference81.69"83.30"+1.61"+2.0%
Revolutions per mile775.6760.6−15.0−1.9%

Questions

How tall is a 215/65R15 tire?
A 215/65R15 tire is 26.0 inches tall (660 mm), calculated from the size. It is 8.5 inches wide with 5.5 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
What does 215/65R15 mean?
215/65R15 means a tire 215 mm wide, with sidewalls 65% as tall as the tire is wide (140 mm), radial construction (R), for a 15 inch wheel.
How many revolutions per mile does a 215/65R15 tire make?
About 776 revolutions per mile, based on a circumference of 81.7 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
What rim width fits a 215/65R15 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 175/80R15 instead of 215/65R15?
175/80R15 is +0.02 inches (+0.1%) in overall diameter, so at an indicated 60 mph you would be doing 60.0 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.

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