Comparison of tire sizes 235/70 R16 and 225/65 R16

235/70R16
235 Tire width
70 Profile height
R16 Tire diameter
433 RPM per km
235mm165mm735mm2310mm
235
70
16
225
65
16
Parameters Sizes Old New
Diameter, mm735699-36 (-4.9%)
Width, mm235225-10 (-4.3%)
Circumference, mm23102196-114 (-4.9%)
Profile height, mm165146-19 (-11.5%)
RPM per km433455+22 (+5.1%)
Clearance change, mm-18
Result:
The diameter differs by -4.9%.
Speedometer reading (km/h)
Real speed (km/h)95.1
Difference (km/h)-4.9

Sizes for comparison of tires 235/70 R16

R16
R15 -1
R17 +1
R18 +2

Sizes for comparison of tires 225/65 R16

R16
R15 -1
R17 +1
R14 -2
R18 +2