Comparison of tire sizes 195/55 R15 and 195/65 R14

195/55R15
195 Tire width
55 Profile height
R15 Tire diameter
535 RPM per km
195mm107mm596mm1871mm
195
55
15
195
65
14
Parameters Sizes Old New
Diameter, mm596609+13 (+2.2%)
Width, mm1951950 (0%)
Circumference, mm18711914+43 (+2.3%)
Profile height, mm107127+20 (+18.7%)
RPM per km535523-12 (-2.2%)
Clearance change, mm+7
Result:
The diameter differs by 2.2%.
Speedometer reading (km/h)
Real speed (km/h)102.3
Difference (km/h)2.3

Sizes for comparison of tires 195/55 R15

R15
R14 -1
R16 +1
R13 -2
R17 +2

Sizes for comparison of tires 195/65 R14

R14
R13 -1
R15 +1
R16 +2