185/65R14 tire size in inches

A 185/65R14 tire measures

23.5" tall × 7.3" wide

4.73" sidewall on a 14" wheel. 859 revolutions per mile.

185/65R14 means a tire 185 mm wide, with sidewalls 65% as tall as the tire is wide (120 mm), radial construction (R), for a 14 inch wheel.

23.5"14" rim4.7"7.3" wide
185/65R14: 23.5 inches tall, 7.3 inches wide, on a 14 inch rim, drawn to scale

185/65R14 specs

Overall diameter (height)23.47 inches (596 mm)
Section width7.28 inches (185 mm)
Sidewall height4.73 inches (120 mm)
Wheel (rim) diameter14 inches
Circumference73.7 inches (1,873 mm)
Revolutions per mile859
Revolutions per kilometer534
Approximate rim width5.0" to 6.5"
In inches (flotation style)23.5x7.3R14
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 185/65R14 on a 14" wheel

These 14" sizes are within 3% of 185/65R14's overall diameter, the range most tire shops treat as interchangeable.

SizeDiameterWidthDifferenceReal speed at 60
215/55R1423.31"8.46"−0.7%59.6 mphCompare
175/70R1423.65"6.89"+0.8%60.5 mphCompare
205/60R1423.69"8.07"+0.9%60.6 mphCompare
195/60R1423.21"7.68"−1.1%59.3 mphCompare
165/75R1423.74"6.50"+1.2%60.7 mphCompare
225/55R1423.74"8.86"+1.2%60.7 mphCompare
155/80R1423.76"6.10"+1.3%60.8 mphCompare
155/75R1423.15"6.10"−1.3%59.2 mphCompare
165/70R1423.09"6.50"−1.6%59.0 mphCompare
175/65R1422.96"6.89"−2.2%58.7 mphCompare
195/65R1423.98"7.68"+2.2%61.3 mphCompare
205/55R1422.88"8.07"−2.5%58.5 mphCompare

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

SizeWheelDiameterDifference
215/50R1515"23.46"0.0%Compare
235/35R1717"23.48"0.0%Compare
205/40R1717"23.46"−0.1%Compare
165/65R1515"23.44"−0.1%Compare
195/55R1515"23.44"−0.1%Compare
205/65R1313"23.49"+0.1%Compare
225/25R1919"23.43"−0.2%Compare
235/40R1616"23.40"−0.3%Compare
165/80R1313"23.39"−0.3%Compare
185/45R1717"23.56"+0.4%Compare
155/85R1313"23.37"−0.4%Compare
195/35R1818"23.37"−0.4%Compare

One size up or down

Compare 185/65R14 with another size

With 195/65R14 tires, when your speedometer says 60 mph you are really going

61.3 mph

195/65R14 is +0.51 inches (+2.2%) in overall diameter. That is within the 3% most shops and makers allow.

185/65R14195/65R14Difference%
Overall diameter23.47"23.98"+0.51"+2.2%
Section width7.28"7.68"+0.39"+5.4%
Sidewall height4.73"4.99"+0.26"+5.4%
Circumference73.73"75.34"+1.61"+2.2%
Revolutions per mile859.4841.0−18.3−2.1%

Questions

How tall is a 185/65R14 tire?
A 185/65R14 tire is 23.5 inches tall (596 mm), calculated from the size. It is 7.3 inches wide with 4.7 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
What does 185/65R14 mean?
185/65R14 means a tire 185 mm wide, with sidewalls 65% as tall as the tire is wide (120 mm), radial construction (R), for a 14 inch wheel.
How many revolutions per mile does a 185/65R14 tire make?
About 859 revolutions per mile, based on a circumference of 73.7 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
What rim width fits a 185/65R14 tire?
Roughly 5.0" to 6.5". Check the tire maker's approved rim range for the exact model before buying wheels.
Can I use 215/55R14 instead of 185/65R14?
215/55R14 is −0.16 inches (−0.7%) in overall diameter, so at an indicated 60 mph you would be doing 59.6 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.

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