215/80R15 tire size in inches

A 215/80R15 tire measures

28.5" tall × 8.5" wide

6.77" sidewall on a 15" wheel. 707 revolutions per mile.

215/80R15 means a tire 215 mm wide, with sidewalls 80% as tall as the tire is wide (172 mm), radial construction (R), for a 15 inch wheel.

28.5"15" rim6.8"8.5" wide
215/80R15: 28.5 inches tall, 8.5 inches wide, on a 15 inch rim, drawn to scale

215/80R15 specs

Overall diameter (height)28.54 inches (725 mm)
Section width8.46 inches (215 mm)
Sidewall height6.77 inches (172 mm)
Wheel (rim) diameter15 inches
Circumference89.7 inches (2,278 mm)
Revolutions per mile707
Revolutions per kilometer439
Approximate rim width5.5" to 7.0"
In inches (flotation style)28.5x8.5R15
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 215/80R15 on a 15" wheel

These 15" sizes are within 3% of 215/80R15's overall diameter, the range most tire shops treat as interchangeable.

SizeDiameterWidthDifferenceReal speed at 60
265/65R1528.56"10.43"+0.1%60.0 mphCompare
245/70R1528.50"9.65"−0.1%59.9 mphCompare
285/60R1528.46"11.22"−0.3%59.8 mphCompare
205/85R1528.72"8.07"+0.6%60.4 mphCompare
225/75R1528.29"8.86"−0.9%59.5 mphCompare
235/75R1528.88"9.25"+1.2%60.7 mphCompare
195/85R1528.05"7.68"−1.7%59.0 mphCompare
255/65R1528.05"10.04"−1.7%59.0 mphCompare
255/70R1529.06"10.04"+1.8%61.1 mphCompare
275/65R1529.07"10.83"+1.9%61.1 mphCompare
275/60R1527.99"10.83"−1.9%58.8 mphCompare
235/70R1527.95"9.25"−2.1%58.8 mphCompare

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

SizeWheelDiameterDifference
245/65R1616"28.54"0.0%Compare
335/40R1818"28.55"0.0%Compare
265/60R1616"28.52"−0.1%Compare
195/75R1717"28.52"−0.1%Compare
225/65R1717"28.52"−0.1%Compare
245/60R1717"28.57"+0.1%Compare
275/35R2121"28.58"+0.1%Compare
345/35R1919"28.51"−0.1%Compare
275/30R2222"28.50"−0.2%Compare
205/65R1818"28.49"−0.2%Compare
335/25R2222"28.59"+0.2%Compare
265/70R1414"28.61"+0.2%Compare

One size up or down

Compare 215/80R15 with another size

With 225/80R15 tires, when your speedometer says 60 mph you are really going

61.3 mph

225/80R15 is +0.63 inches (+2.2%) in overall diameter. That is within the 3% most shops and makers allow.

215/80R15225/80R15Difference%
Overall diameter28.54"29.17"+0.63"+2.2%
Section width8.46"8.86"+0.39"+4.7%
Sidewall height6.77"7.09"+0.31"+4.7%
Circumference89.67"91.65"+1.98"+2.2%
Revolutions per mile706.6691.3−15.3−2.2%

Questions

How tall is a 215/80R15 tire?
A 215/80R15 tire is 28.5 inches tall (725 mm), calculated from the size. It is 8.5 inches wide with 6.8 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
What does 215/80R15 mean?
215/80R15 means a tire 215 mm wide, with sidewalls 80% as tall as the tire is wide (172 mm), radial construction (R), for a 15 inch wheel.
How many revolutions per mile does a 215/80R15 tire make?
About 707 revolutions per mile, based on a circumference of 89.7 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
What rim width fits a 215/80R15 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 265/65R15 instead of 215/80R15?
265/65R15 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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