31 inch tires
These common sizes measure between 30.5 and 31.5 inches tall. A "31 inch tire" can be an inch size or a metric size; what matters for fit is the overall height, width and wheel diameter.
14 sizes around 31″
| Size | Diameter | Width | Sidewall | Wheel |
|---|---|---|---|---|
| 31x10.50R15 | 31.0″ | 10.5″ | 8.0″ | 15″ |
| 265/70R16 | 30.6″ | 10.4″ | 7.3″ | 16″ |
| 245/70R17 | 30.5″ | 9.6″ | 6.8″ | 17″ |
| 265/65R17 | 30.6″ | 10.4″ | 6.8″ | 17″ |
| 235/75R17 | 30.9″ | 9.3″ | 6.9″ | 17″ |
| 255/70R17 | 31.1″ | 10.0″ | 7.0″ | 17″ |
| 275/65R17 | 31.1″ | 10.8″ | 7.0″ | 17″ |
| 245/75R17 | 31.5″ | 9.6″ | 7.2″ | 17″ |
| 265/60R18 | 30.5″ | 10.4″ | 6.3″ | 18″ |
| 255/65R18 | 31.1″ | 10.0″ | 6.5″ | 18″ |
| 255/55R20 | 31.0″ | 10.0″ | 5.5″ | 20″ |
| 285/50R20 | 31.2″ | 11.2″ | 5.6″ | 20″ |
| 275/45R21 | 30.7″ | 10.8″ | 4.9″ | 21″ |
| 275/40R22 | 30.7″ | 10.8″ | 4.3″ | 22″ |