Adjust the values, then select Calculate to see the result.
Section width
mm
First number, e.g. 225
Aspect ratio
%
Second number, e.g. 55
Wheel diameter
in
Last number, e.g. 16
Compare with a second size
New section width
mm
New aspect ratio
%
New wheel diameter
in
Calculate
Clear
Result
Enter your values, then select Calculate.
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