Tire size
195/55 R16
Full dimensions and a live comparison calculator for the 195/55 R16 tire size.
Overall diameter
620.9 mm
24.44″
Sidewall height
107.3 mm
Circumference
1.951 m
Revs / km
512.7
Section width
195 mm
Aspect ratio
55%
Rim diameter
16″
406.4 mm
Radius
310.4 mm
What does 195/55 R16 mean?
The 195 is the section width in millimetres, measured sidewall to sidewall. The 55 is the aspect ratio — sidewall height as a percentage of width, so the sidewall here is 107.3 mm. The R16 means a radial-construction tire designed for a 16-inch wheel rim. Together these give an overall diameter of 621 mm.
Compare 195/55 R16 with another size
Current Tire
New Tire
Ground line · scaled comparison
Excellent Fit
Within ±3% — safe for daily driving
Diameter change
+13.4 mm
2.16%
Speedometer at 100
102.2 km/h
+2.16% error
Ground clearance
+6.7 mm
ride height delta
Sidewall change
-6.0 mm
revs/km: 501.8
Permalink for this comparison:
/compare/195-55-r16-vs-225-45-r17Common alternatives to 195/55 R16
These sizes are within a few percent overall diameter — usually safe on the same vehicle from a speedometer-error standpoint.
Compare 195/55 R16 with popular upgrades
Plus-size upgrades from 195/55 R16
Fitment safety note
Overall diameter, speedometer error and circumference are only part of the picture. Physical clearance, wheel offset (ET), hub bore, suspension geometry, load index and your manufacturer's recommendation all decide whether a size is truly safe on your car. Always cross-check with the vehicle manual or a qualified fitter before changing tire size.