Comparison of tire sizes 165/70 R14 and 205/55 R14

165/70R14
165 Tire width
70 Profile height
R14 Tire diameter
543 RPM per km
165mm115mm587mm1843mm
165
70
14
205
55
14
Parameters Sizes Old New
Diameter, mm587581-6 (-1%)
Width, mm165205+40 (+24.2%)
Circumference, mm18431826-17 (-0.9%)
Profile height, mm115113-2 (-1.7%)
RPM per km543548+5 (+0.9%)
Clearance change, mm-3
Result:
The diameter differs by -1%.
Speedometer reading (km/h)
Real speed (km/h)99.1
Difference (km/h)-0.9

Sizes for comparison of tires 165/70 R14

R14
R13 -1
R15 +1
R16 +2

Sizes for comparison of tires 205/55 R14

R14
R13 -1
R15 +1
R16 +2