Comparison of tire sizes 175/65 R13 and 165/55 R14

175
65
13
165
55
14
175/65R13
tire
175 Tire width
65 Profile height
R13 Tire diameter
RPM per km
tire
175mm114mm558mm1752mm571
Parameters Sizes Old New
Diameter, mm558537-21 (-3.8%)
Width, mm175165-10 (-5.7%)
Circumference, mm17521687-65 (-3.7%)
Profile height, mm11491-23 (-20.2%)
RPM per km571593+22 (+3.9%)
Clearance change, mm-11
Speedometer reading (km/h)96.3-3.7
Result:
The diameter differs by -3.8%.

Sizes for comparison of tires 175/65 R13

R13
R14 +1
R15 +2