Comparison of tire sizes 165/65 R14 and 155/70 R13

165/65R14
165 Tire width
65 Profile height
R14 Tire diameter
558 RPM per km
165mm107mm570mm1791mm
165
65
14
155
70
13
Parameters Sizes Old New
Diameter, mm570547-23 (-4%)
Width, mm165155-10 (-6.1%)
Circumference, mm17911719-72 (-4%)
Profile height, mm107109+2 (+1.9%)
RPM per km558582+24 (+4.3%)
Clearance change, mm-12
Result:
The diameter differs by -4%.
Speedometer reading (km/h)
Real speed (km/h)96
Difference (km/h)-4

Sizes for comparison of tires 165/65 R14

R14
R13 -1
R15 +1
R16 +2

Sizes for comparison of tires 155/70 R13

R13
R14 +1
R15 +2