SidewallerTire & wheel calculators

21 inch tire sizes

Common sizes that fit a 21-inch wheel, sorted by overall diameter, from 27.8″ to 30.7″ tall.

13″14″15″16″17″18″19″20″21″22″24″

7 sizes for 21″ wheels

SizeDiameterWidthSidewallWheel
245/35R2127.8″9.6″3.4″21″
275/35R2128.6″10.8″3.8″21″
285/35R2128.9″11.2″3.9″21″
255/40R2129.0″10.0″4.0″21″
295/35R2129.1″11.6″4.1″21″
265/40R2129.3″10.4″4.2″21″
275/45R2130.7″10.8″4.9″21″