245/55R16 tire size in inches

A 245/55R16 tire measures

26.6" tall × 9.6" wide

5.31" sidewall on a 16" wheel. 758 revolutions per mile.

245/55R16 means a tire 245 mm wide, with sidewalls 55% as tall as the tire is wide (135 mm), radial construction (R), for a 16 inch wheel.

26.6"16" rim5.3"9.6" wide
245/55R16: 26.6 inches tall, 9.6 inches wide, on a 16 inch rim, drawn to scale

245/55R16 specs

Overall diameter (height)26.61 inches (676 mm)
Section width9.65 inches (245 mm)
Sidewall height5.31 inches (135 mm)
Wheel (rim) diameter16 inches
Circumference83.6 inches (2,123 mm)
Revolutions per mile758
Revolutions per kilometer471
Approximate rim width7.0" to 8.5"
In inches (flotation style)26.6x9.6R16
Aspect ratio55%

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 245/55R16 on a 16" wheel

These 16" sizes are within 3% of 245/55R16's overall diameter, the range most tire shops treat as interchangeable.

SizeDiameterWidthDifferenceReal speed at 60
225/60R1626.63"8.86"+0.1%60.0 mphCompare
205/65R1626.49"8.07"−0.4%59.7 mphCompare
195/70R1626.75"7.68"+0.5%60.3 mphCompare
295/45R1626.45"11.61"−0.6%59.6 mphCompare
265/50R1626.43"10.43"−0.7%59.6 mphCompare
275/50R1626.83"10.83"+0.8%60.5 mphCompare
175/75R1626.33"6.89"−1.0%59.4 mphCompare
185/75R1626.93"7.28"+1.2%60.7 mphCompare
215/65R1627.00"8.46"+1.5%60.9 mphCompare
185/70R1626.20"7.28"−1.6%59.1 mphCompare
175/80R1627.02"6.89"+1.6%60.9 mphCompare
235/55R1626.18"9.25"−1.6%59.0 mphCompare

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

SizeWheelDiameterDifference
285/25R2121"26.61"0.0%Compare
305/40R1717"26.61"0.0%Compare
215/45R1919"26.62"0.0%Compare
235/25R2222"26.63"+0.1%Compare
335/25R2020"26.59"−0.1%Compare
275/35R1919"26.58"−0.1%Compare
245/60R1515"26.57"−0.1%Compare
245/50R1717"26.65"+0.1%Compare
185/80R1515"26.65"+0.2%Compare
275/40R1818"26.66"+0.2%Compare
235/30R2121"26.55"−0.2%Compare
215/80R1313"26.54"−0.3%Compare

One size up or down

Compare 245/55R16 with another size

With 255/55R16 tires, when your speedometer says 60 mph you are really going

61.0 mph

255/55R16 is +0.43 inches (+1.6%) in overall diameter. That is within the 3% most shops and makers allow.

245/55R16255/55R16Difference%
Overall diameter26.61"27.04"+0.43"+1.6%
Section width9.65"10.04"+0.39"+4.1%
Sidewall height5.31"5.52"+0.22"+4.1%
Circumference83.60"84.96"+1.36"+1.6%
Revolutions per mile757.9745.8−12.1−1.6%

Questions

How tall is a 245/55R16 tire?
A 245/55R16 tire is 26.6 inches tall (676 mm), calculated from the size. It is 9.6 inches wide with 5.3 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
What does 245/55R16 mean?
245/55R16 means a tire 245 mm wide, with sidewalls 55% as tall as the tire is wide (135 mm), radial construction (R), for a 16 inch wheel.
How many revolutions per mile does a 245/55R16 tire make?
About 758 revolutions per mile, based on a circumference of 83.6 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
What rim width fits a 245/55R16 tire?
Roughly 7.0" to 8.5". Check the tire maker's approved rim range for the exact model before buying wheels.
Can I use 225/60R16 instead of 245/55R16?
225/60R16 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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