Comparison of tire sizes 165/80 R13 and 175/70 R13

165/80R13
165 Tire width
80 Profile height
R13 Tire diameter
536 RPM per km
165mm132mm594mm1867mm
165
80
13
175
70
13
Parameters Sizes Old New
Diameter, mm594575-19 (-3.2%)
Width, mm165175+10 (+6.1%)
Circumference, mm18671807-60 (-3.2%)
Profile height, mm132123-9 (-6.8%)
RPM per km536553+17 (+3.2%)
Clearance change, mm-10
Result:
The diameter differs by -3.2%.
Speedometer reading (km/h)
Real speed (km/h)96.8
Difference (km/h)-3.2

Sizes for comparison of tires 165/80 R13

R13
R14 +1
R15 +2

Sizes for comparison of tires 175/70 R13

R13
R14 +1
R15 +2