Calculators

Fuel consumption

 

Tyre sizes

Use the calculator to see what happens to your speedometer reading when you change the size of your tires and wheels.

Original tyre size: / R
New tyre size: / R
  Original tyre New tyre
185/65 R14 205/50 R15
Radius, mm  
Circumference, mm  
Circumference difference, mm 
Circumference difference, % 

Vehicle speed as speedometer reading is:*
 
50 km/h50 
80 km/h80 
100 km/h100 
120 km/h120 
* Note:  it is assumed that speedometer shows real speed with original tyres.

Engine displacement

Bore:mm0 cc
Stroke:mm
Num of cylinders: