Comparison of tire sizes 165/80 R13 and 155/80 R13

165/80R13
165 Tire width
80 Profile height
R13 Tire diameter
536 RPM per km
165mm132mm594mm1867mm
165
80
13
155
80
13
Parameters Sizes Old New
Diameter, mm594578-16 (-2.7%)
Width, mm165155-10 (-6.1%)
Circumference, mm18671816-51 (-2.7%)
Profile height, mm132124-8 (-6.1%)
RPM per km536551+15 (+2.8%)
Clearance change, mm-8
Result:
The diameter differs by -2.7%.
Speedometer reading (km/h)
Real speed (km/h)97.3
Difference (km/h)-2.7

Sizes for comparison of tires 165/80 R13

R13
R14 +1
R15 +2

Sizes for comparison of tires 155/80 R13

R13
R14 +1
R15 +2