195/55R16 tire size

A 195/55R16 tire is 24.4 inches (621 mm) tall and 7.7 inches (195 mm) wide, and fits a 16-inch wheel. In inch sizing it is about a 24.4x7.7R16.

Overall diameter24.44in621 mm

Drawn to scale from the nominal size.

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Size	Diameter	Difference	Width	Sidewall	Wheel
185/65R15	24.5″	+0.1%	7.3″	4.7″	15″
215/45R17	24.6″	+0.7%	8.5″	3.8″	17″
195/60R15	24.2″	−1.0%	7.7″	4.6″	15″
205/60R15	24.7″	+1.0%	8.1″	4.8″	15″
185/70R14	24.2″	−1.0%	7.3″	5.1″	14″
245/40R17	24.7″	+1.1%	9.6″	3.9″	17″
195/70R14	24.7″	+1.2%	7.7″	5.4″	14″
205/50R16	24.1″	−1.5%	8.1″	4.0″	16″
225/50R16	24.9″	+1.7%	8.9″	4.4″	16″
185/55R16	24.0″	−1.8%	7.3″	4.0″	16″
205/55R16	24.9″	+1.8%	8.1″	4.4″	16″
175/65R15	24.0″	−2.0%	6.9″	4.5″	15″

Within 3% of the original diameter is the range most tire shops treat as a direct swap. Check load index and clearance too.

195: Section width: 195 mm (7.7 in) from sidewall to sidewall.
55: Aspect ratio: the sidewall is 55% as tall as the tire is wide, 107 mm (4.2 in).
R: Radial construction, used by almost every modern tire.
16: Fits a 16-inch wheel.

195/55R16 is about 24.4 inches tall and 7.7 inches wide, on a 16-inch wheel, roughly a 24.4x7.7R16 in inch sizing.

Nearly. It measures 24.4 inches, so it falls between 24 and 25 inches.

185/65R15, 215/45R17, 195/60R15 are the closest common sizes, all within 1.0% of its diameter, so the speedometer stays close to accurate.

215/55R16 is 3.5% taller, so at an indicated 60 mph you would really be doing 62.1 mph. Compare 195/55R16 and 215/55R16.

About 825 per mile (513 per km), from a 76.8-inch circumference.