Comparison of tire sizes 275/70 R16 and 235/70 R17

275/70R16
275 Tire width
70 Profile height
R16 Tire diameter
402 RPM per km
275mm193mm791mm2486mm
275
70
16
235
70
17
Parameters Sizes Old New
Diameter, mm791761-30 (-3.8%)
Width, mm275235-40 (-14.5%)
Circumference, mm24862390-96 (-3.9%)
Profile height, mm193165-28 (-14.5%)
RPM per km402418+16 (+4%)
Clearance change, mm-15
Result:
The diameter differs by -3.8%.
Speedometer reading (km/h)
Real speed (km/h)96.1
Difference (km/h)-3.9

Sizes for comparison of tires 275/70 R16

R16
R17 +1
R18 +2

Sizes for comparison of tires 235/70 R17

R17
R16 -1
R18 +1
R15 -2
R19 +2