Comparison of tire sizes 165/55 R14 and 195/55 R13

165
55
14
195
55
13
165/55R14
tire
165 Tire width
55 Profile height
R14 Tire diameter
RPM per km
tire
165mm91mm537mm1687mm593
Parameters Sizes Old New
Diameter, mm537545+8 (+1.5%)
Width, mm165195+30 (+18.2%)
Circumference, mm16871711+24 (+1.4%)
Profile height, mm91107+16 (+17.6%)
RPM per km593584-9 (-1.5%)
Clearance change, mm+4
Speedometer reading (km/h)101.41.4
Result:
The diameter differs by 1.5%.

Sizes for comparison of tires 165/55 R14

R14
R13 -1
R15 +1
R12 -2