If you plan to make a tire change is relevant to know a few things before making a change that in the long term can cause problems.
Changing the standard tire measures implies an increase in the diameter of the wheel or tire. At first it seems simple, but just go to a sales of tires and choose from a large variety which leaves wide open the picture if we have a specific preset.
Despite the inconveniences that could be presented, a tire change is possible if certain parameters and suggestions are observed.
For starters, the ideal is to respect the working diameter of the wheel depending on the manufacturer of your car, but given the variability within each tire profile must know choose the best option for your vehicle.
This application tries to give a contribution to help make a better decision based on the calculation of the equivalence of two mixed tires but having a diameter quite similar accepting a tolerance of difference of + -3%.