Tyre aspect ratio calculator how to#
Tyre aspect ratio calculator plus#

Results of the comparision are presented in the section 'Tire Comparison'.Įvery compared tire, with its dimensions, is contained in a section called 'Compared Tire x' and it has the table column 'Diff' which shows calculated differences between the compared tire dimensions and the base tire dimensions.Īt the bottom of the section 'Tire Comparison' there is the 'Clear compared tires' button which, when clicked, clears all tires selected for the comparison, and you can start over, to add new tire sizes you want to compare with the existing base tire. In tyres where the aspect ratio is not shown the profile 82. To use this option, after you've got dimensions for the first selected tire size - the base tire, select another tire size and click again on the 'Calculate Tire Dimensions' button in order to get dimensions for that tire size.Īfter that, the 'Compare this tire' button will be enabled and you can click on it to add the last calculated tire size dimensions for a comparision with the base tire size. 185 mm in width /70 Profile - percentage of width. You have an option to compare two additional tire sizes to the base tire size. The first selected/entered tire size in the Tire Size Calculator is the Base tire, as the base for a comparision with other tires. Dimensions for the selected tire size will be presented in the table below the calculator. To get the tire dimensions for a tire, first select the tire size, then click on the 'Calculate Tire Dimensions' button.

Tyre aspect ratio calculator how to#

Rim Diameter = 15 inches How to use the Tire Size Calculator and how to compare the tire dimensions For example, sidewall height of this tire will be 195 x 0.65 = 126.75 mm RĪspect Ratio is the sidewall height as a percentage of the section width. The tire size designation is consisted of the following elements: Calculate and compare dimensions of wheels and tyres, to make sure theyre a good fit. More information about a Tire Size Designation.195/65R15 / R select new wheel diameter size OR Table columns headings: Column 'Diff' may have percentages in the range from -3 to +4 (+5 for Winter tyres), which are allowed.

Tyre aspect ratio calculator plus#

Plus Sizing Calculator select OE tyre size eg. The converter also displays adequate real tires with the dimensions which are closest to the calculated tire size, if such exist. This formula is used by the leading tyre manufacturers.

The tire size converter will convert the inch tire size to the metric tire size and the other way around.

Find the wheel offset and the wheel backspace, the important measurements for positioning the wheel/tire assembly inside the wheel well.

What is the best tire size for your rim? Tire Size for Rim Size/Width Calculator.

Find out which wheel size is suitable for your new tires.

Check the speedometer for the speedo error which may arise from the tire size change, for any speedometer reading.

The section height can be calculated by multiplying the section width by the aspect ratio percentage. This percentage represents the ratio of the sidewalls section height to the tires section width. pair of numbers (225/ 45R17) is the tires aspect ratio or profile.

Find out which tire dimensions are adequate for your new wheels with Plus Sizing Calculator. How Do I Calculate Tire Dimensions Tire Rack.