21 inch tire sizes
97 common sizes for 21" wheels, with their real dimensions in inches. Overall height ranges from 25.4" to 35.9".
All 21" sizes
| Size | Diameter | Width | Sidewall | Revs/mile |
|---|---|---|---|---|
| 225/25R21 | 25.43" | 8.86" | 2.21" | 793 |
| 225/30R21 | 26.31" | 8.86" | 2.66" | 766 |
| 225/35R21 | 27.20" | 8.86" | 3.10" | 741 |
| 225/40R21 | 28.09" | 8.86" | 3.54" | 718 |
| 225/45R21 | 28.97" | 8.86" | 3.99" | 696 |
| 225/50R21 | 29.86" | 8.86" | 4.43" | 675 |
| 225/55R21 | 30.74" | 8.86" | 4.87" | 656 |
| 235/25R21 | 25.63" | 9.25" | 2.31" | 787 |
| 235/30R21 | 26.55" | 9.25" | 2.78" | 760 |
| 235/35R21 | 27.48" | 9.25" | 3.24" | 734 |
| 235/40R21 | 28.40" | 9.25" | 3.70" | 710 |
| 235/45R21 | 29.33" | 9.25" | 4.16" | 688 |
| 235/50R21 | 30.25" | 9.25" | 4.63" | 667 |
| 235/55R21 | 31.18" | 9.25" | 5.09" | 647 |
| 245/25R21 | 25.82" | 9.65" | 2.41" | 781 |
| 245/30R21 | 26.79" | 9.65" | 2.89" | 753 |
| 245/35R21 | 27.75" | 9.65" | 3.38" | 727 |
| 245/40R21 | 28.72" | 9.65" | 3.86" | 702 |
| 245/45R21 | 29.68" | 9.65" | 4.34" | 679 |
| 245/50R21 | 30.65" | 9.65" | 4.82" | 658 |
| 245/55R21 | 31.61" | 9.65" | 5.31" | 638 |
| 255/25R21 | 26.02" | 10.04" | 2.51" | 775 |
| 255/30R21 | 27.02" | 10.04" | 3.01" | 746 |
| 255/35R21 | 28.03" | 10.04" | 3.51" | 720 |
| 255/40R21 | 29.03" | 10.04" | 4.02" | 695 |
| 255/45R21 | 30.04" | 10.04" | 4.52" | 671 |
| 255/50R21 | 31.04" | 10.04" | 5.02" | 650 |
| 255/55R21 | 32.04" | 10.04" | 5.52" | 629 |
| 265/25R21 | 26.22" | 10.43" | 2.61" | 769 |
| 265/30R21 | 27.26" | 10.43" | 3.13" | 740 |
| 265/35R21 | 28.30" | 10.43" | 3.65" | 713 |
| 265/40R21 | 29.35" | 10.43" | 4.17" | 687 |
| 265/45R21 | 30.39" | 10.43" | 4.69" | 664 |
| 265/50R21 | 31.43" | 10.43" | 5.22" | 642 |
| 265/55R21 | 32.48" | 10.43" | 5.74" | 621 |
| 275/25R21 | 26.41" | 10.83" | 2.71" | 764 |
| 275/30R21 | 27.50" | 10.83" | 3.25" | 733 |
| 275/35R21 | 28.58" | 10.83" | 3.79" | 706 |
| 275/40R21 | 29.66" | 10.83" | 4.33" | 680 |
| 275/45R21 | 30.74" | 10.83" | 4.87" | 656 |
| 275/50R21 | 31.83" | 10.83" | 5.41" | 634 |
| 275/55R21 | 32.91" | 10.83" | 5.95" | 613 |
| 285/25R21 | 26.61" | 11.22" | 2.81" | 758 |
| 285/30R21 | 27.73" | 11.22" | 3.37" | 727 |
| 285/35R21 | 28.85" | 11.22" | 3.93" | 699 |
| 285/40R21 | 29.98" | 11.22" | 4.49" | 673 |
| 285/45R21 | 31.10" | 11.22" | 5.05" | 649 |
| 285/50R21 | 32.22" | 11.22" | 5.61" | 626 |
| 285/55R21 | 33.34" | 11.22" | 6.17" | 605 |
| 295/25R21 | 26.81" | 11.61" | 2.90" | 752 |
| 295/30R21 | 27.97" | 11.61" | 3.48" | 721 |
| 295/35R21 | 29.13" | 11.61" | 4.06" | 692 |
| 295/40R21 | 30.29" | 11.61" | 4.65" | 666 |
| 295/45R21 | 31.45" | 11.61" | 5.23" | 641 |
| 295/50R21 | 32.61" | 11.61" | 5.81" | 618 |
| 295/55R21 | 33.78" | 11.61" | 6.39" | 597 |
| 305/25R21 | 27.00" | 12.01" | 3.00" | 747 |
| 305/30R21 | 28.20" | 12.01" | 3.60" | 715 |
| 305/35R21 | 29.41" | 12.01" | 4.20" | 686 |
| 305/40R21 | 30.61" | 12.01" | 4.80" | 659 |
| 305/45R21 | 31.81" | 12.01" | 5.40" | 634 |
| 305/50R21 | 33.01" | 12.01" | 6.00" | 611 |
| 305/55R21 | 34.21" | 12.01" | 6.60" | 590 |
| 315/25R21 | 27.20" | 12.40" | 3.10" | 741 |
| 315/30R21 | 28.44" | 12.40" | 3.72" | 709 |
| 315/35R21 | 29.68" | 12.40" | 4.34" | 679 |
| 315/40R21 | 30.92" | 12.40" | 4.96" | 652 |
| 315/45R21 | 32.16" | 12.40" | 5.58" | 627 |
| 315/50R21 | 33.40" | 12.40" | 6.20" | 604 |
| 315/55R21 | 34.64" | 12.40" | 6.82" | 582 |
| 325/25R21 | 27.40" | 12.80" | 3.20" | 736 |
| 325/30R21 | 28.68" | 12.80" | 3.84" | 703 |
| 325/35R21 | 29.96" | 12.80" | 4.48" | 673 |
| 325/40R21 | 31.24" | 12.80" | 5.12" | 646 |
| 325/45R21 | 32.52" | 12.80" | 5.76" | 620 |
| 325/50R21 | 33.80" | 12.80" | 6.40" | 597 |
| 325/55R21 | 35.07" | 12.80" | 7.04" | 575 |
| 335/25R21 | 27.59" | 13.19" | 3.30" | 731 |
| 335/30R21 | 28.91" | 13.19" | 3.96" | 698 |
| 335/35R21 | 30.23" | 13.19" | 4.62" | 667 |
| 335/40R21 | 31.55" | 13.19" | 5.28" | 639 |
| 335/45R21 | 32.87" | 13.19" | 5.94" | 614 |
| 335/50R21 | 34.19" | 13.19" | 6.59" | 590 |
| 335/55R21 | 35.51" | 13.19" | 7.25" | 568 |
| 345/25R21 | 27.79" | 13.58" | 3.40" | 726 |
| 345/30R21 | 29.15" | 13.58" | 4.07" | 692 |
| 345/35R21 | 30.51" | 13.58" | 4.75" | 661 |
| 345/40R21 | 31.87" | 13.58" | 5.43" | 633 |
| 345/45R21 | 33.22" | 13.58" | 6.11" | 607 |
| 345/50R21 | 34.58" | 13.58" | 6.79" | 583 |
| 345/55R21 | 35.94" | 13.58" | 7.47" | 561 |
| 355/25R21 | 27.99" | 13.98" | 3.49" | 721 |
| 355/30R21 | 29.39" | 13.98" | 4.19" | 686 |
| 355/35R21 | 30.78" | 13.98" | 4.89" | 655 |
| 355/40R21 | 32.18" | 13.98" | 5.59" | 627 |
| 355/45R21 | 33.58" | 13.98" | 6.29" | 601 |
| 355/50R21 | 34.98" | 13.98" | 6.99" | 577 |
Questions
- What tire sizes fit a 21 inch rim?
- Any tire whose size ends in R21, such as 225/25R21, 225/30R21, 225/35R21. This page lists 97 common 21" sizes. The tire width must also suit your rim's width, and the overall diameter should stay within about 3% of the original.
- How tall are 21 inch tires?
- 21" tires range from about 25.4" to 35.9" in overall diameter, depending on width and sidewall height. The 21 only describes the wheel.