20-inch tire sizes
144 sizes made for 20" wheels, from 25.1" to 46.0" tall. Click a size for inches, equivalents and comparisons.
| Size | Diameter | Width | Sidewall | Revs/mile |
|---|---|---|---|---|
| 145/60R20 | 26.85" | 5.7" | 3.43" | 751 |
| 145/65R20 | 27.42" | 5.7" | 3.71" | 735 |
| 155/60R20 | 27.32" | 6.1" | 3.66" | 738 |
| 155/65R20 | 27.93" | 6.1" | 3.97" | 722 |
| 165/60R20 | 27.80" | 6.5" | 3.90" | 726 |
| 175/55R20 | 27.58" | 6.9" | 3.79" | 731 |
| 175/70R20 | 29.65" | 6.9" | 4.82" | 680 |
| 195/50R20 | 27.68" | 7.7" | 3.84" | 729 |
| 195/55R20 | 28.44" | 7.7" | 4.22" | 709 |
| 215/30R20 | 25.08" | 8.5" | 2.54" | 804 |
| 215/45R20 | 27.62" | 8.5" | 3.81" | 730 |
| 225/30R20 | 25.31" | 8.9" | 2.66" | 797 |
| 225/35R20 | 26.20" | 8.9" | 3.10" | 770 |
| 225/40R20 | 27.09" | 8.9" | 3.54" | 745 |
| 225/45R20 | 27.97" | 8.9" | 3.99" | 721 |
| 235/30R20 | 25.55" | 9.3" | 2.78" | 789 |
| 235/35R20 | 26.48" | 9.3" | 3.24" | 762 |
| 235/40R20 | 27.40" | 9.3" | 3.70" | 736 |
| 235/45R20 | 28.33" | 9.3" | 4.16" | 712 |
| 235/50R20 | 29.25" | 9.3" | 4.63" | 689 |
| 235/55R20 | 30.18" | 9.3" | 5.09" | 668 |
| 235/60R20 | 31.10" | 9.3" | 5.55" | 648 |
| 245/30R20 | 25.79" | 9.6" | 2.89" | 782 |
| 245/35R20 | 26.75" | 9.6" | 3.38" | 754 |
| 245/40R20 | 27.72" | 9.6" | 3.86" | 728 |
| 245/45R20 | 28.68" | 9.6" | 4.34" | 703 |
| 245/50R20 | 29.65" | 9.6" | 4.82" | 680 |
| 245/60R20 | 31.57" | 9.6" | 5.79" | 639 |
| 255/30R20 | 26.02" | 10.0" | 3.01" | 775 |
| 255/35R20 | 27.03" | 10.0" | 3.51" | 746 |
| 255/40R20 | 28.03" | 10.0" | 4.02" | 719 |
| 255/45R20 | 29.04" | 10.0" | 4.52" | 695 |
| 255/50R20 | 30.04" | 10.0" | 5.02" | 671 |
| 255/55R20 | 31.04" | 10.0" | 5.52" | 650 |
| 255/60R20 | 32.05" | 10.0" | 6.02" | 629 |
| 265/30R20 | 26.26" | 10.4" | 3.13" | 768 |
| 265/35R20 | 27.30" | 10.4" | 3.65" | 739 |
| 265/40R20 | 28.35" | 10.4" | 4.17" | 711 |
| 265/45R20 | 29.39" | 10.4" | 4.69" | 686 |
| 265/50R20 | 30.43" | 10.4" | 5.22" | 663 |
| 265/55R20 | 31.48" | 10.4" | 5.74" | 641 |
| 265/60R20 | 32.52" | 10.4" | 6.26" | 620 |
| 275/25R20 | 25.41" | 10.8" | 2.71" | 794 |
| 275/30R20 | 26.50" | 10.8" | 3.25" | 761 |
| 275/35R20 | 27.58" | 10.8" | 3.79" | 731 |
| 275/40R20 | 28.66" | 10.8" | 4.33" | 704 |
| 275/45R20 | 29.74" | 10.8" | 4.87" | 678 |
| 275/50R20 | 30.83" | 10.8" | 5.41" | 654 |
| 275/55R20 | 31.91" | 10.8" | 5.95" | 632 |
| 275/60R20 | 32.99" | 10.8" | 6.50" | 611 |
| 275/65R20 | 34.07" | 10.8" | 7.04" | 592 |
| 285/25R20 | 25.61" | 11.2" | 2.81" | 788 |
| 285/30R20 | 26.73" | 11.2" | 3.37" | 754 |
| 285/35R20 | 27.85" | 11.2" | 3.93" | 724 |
| 285/40R20 | 28.98" | 11.2" | 4.49" | 696 |
| 285/45R20 | 30.10" | 11.2" | 5.05" | 670 |
| 285/50R20 | 31.22" | 11.2" | 5.61" | 646 |
| 285/55R20 | 32.34" | 11.2" | 6.17" | 624 |
| 285/60R20 | 33.46" | 11.2" | 6.73" | 603 |
| 285/65R20 | 34.59" | 11.2" | 7.29" | 583 |
| 285/70R20 | 35.71" | 11.2" | 7.85" | 565 |
| 33x11.50R20 | 33.00" | 11.5" | 6.50" | 611 |
| 34x11.50R20 | 34.00" | 11.5" | 7.00" | 593 |
| 35x11.50R20 | 35.00" | 11.5" | 7.50" | 576 |
| 37x11.50R20 | 37.00" | 11.5" | 8.50" | 545 |
| 38x11.50R20 | 38.00" | 11.5" | 9.00" | 531 |
| 295/25R20 | 25.81" | 11.6" | 2.90" | 781 |
| 295/30R20 | 26.97" | 11.6" | 3.48" | 748 |
| 295/35R20 | 28.13" | 11.6" | 4.06" | 717 |
| 295/40R20 | 29.29" | 11.6" | 4.65" | 689 |
| 295/45R20 | 30.45" | 11.6" | 5.23" | 662 |
| 295/50R20 | 31.61" | 11.6" | 5.81" | 638 |
| 295/55R20 | 32.78" | 11.6" | 6.39" | 615 |
| 295/60R20 | 33.94" | 11.6" | 6.97" | 594 |
| 295/65R20 | 35.10" | 11.6" | 7.55" | 575 |
| 305/25R20 | 26.00" | 12.0" | 3.00" | 776 |
| 305/30R20 | 27.20" | 12.0" | 3.60" | 741 |
| 305/35R20 | 28.41" | 12.0" | 4.20" | 710 |
| 305/40R20 | 29.61" | 12.0" | 4.80" | 681 |
| 305/45R20 | 30.81" | 12.0" | 5.40" | 655 |
| 305/50R20 | 32.01" | 12.0" | 6.00" | 630 |
| 33x12.00R20 | 33.00" | 12.0" | 6.50" | 611 |
| 305/55R20 | 33.21" | 12.0" | 6.60" | 607 |
| 305/60R20 | 34.41" | 12.0" | 7.20" | 586 |
| 315/25R20 | 26.20" | 12.4" | 3.10" | 770 |
| 315/30R20 | 27.44" | 12.4" | 3.72" | 735 |
| 315/35R20 | 28.68" | 12.4" | 4.34" | 703 |
| 315/50R20 | 32.40" | 12.4" | 6.20" | 622 |
| 315/60R20 | 34.88" | 12.4" | 7.44" | 578 |
| 33x12.50R20 | 33.00" | 12.5" | 6.50" | 611 |
| 35x12.50R20 | 35.00" | 12.5" | 7.50" | 576 |
| 37x12.50R20 | 37.00" | 12.5" | 8.50" | 545 |
| 325/25R20 | 26.40" | 12.8" | 3.20" | 764 |
| 325/30R20 | 27.68" | 12.8" | 3.84" | 729 |
| 325/35R20 | 28.96" | 12.8" | 4.48" | 696 |
| 325/50R20 | 32.80" | 12.8" | 6.40" | 615 |
| 325/60R20 | 35.35" | 12.8" | 7.68" | 570 |
| 35x13.00R20 | 35.00" | 13.0" | 7.50" | 576 |
| 335/25R20 | 26.59" | 13.2" | 3.30" | 758 |
| 335/30R20 | 27.91" | 13.2" | 3.96" | 723 |
| 33x13.50R20 | 33.00" | 13.5" | 6.50" | 611 |
| 35x13.50R20 | 35.00" | 13.5" | 7.50" | 576 |
| 36x13.50R20 | 36.00" | 13.5" | 8.00" | 560 |
| 37x13.50R20 | 37.00" | 13.5" | 8.50" | 545 |
| 38x13.50R20 | 38.00" | 13.5" | 9.00" | 531 |
| 38.5x13.50R20 | 38.50" | 13.5" | 9.25" | 524 |
| 39x13.50R20 | 39.00" | 13.5" | 9.50" | 517 |
| 39.5x13.50R20 | 39.50" | 13.5" | 9.75" | 511 |
| 40x13.50R20 | 40.00" | 13.5" | 10.00" | 504 |
| 42x13.50R20 | 42.00" | 13.5" | 11.00" | 480 |
| 42.5x13.50R20 | 42.50" | 13.5" | 11.25" | 475 |
| 44x13.50R20 | 44.00" | 13.5" | 12.00" | 458 |
| 345/25R20 | 26.79" | 13.6" | 3.40" | 753 |
| 345/30R20 | 28.15" | 13.6" | 4.07" | 716 |
| 345/60R20 | 36.30" | 13.6" | 8.15" | 556 |
| 355/50R20 | 33.98" | 14.0" | 6.99" | 594 |
| 355/60R20 | 36.77" | 14.0" | 8.39" | 548 |
| 33x14.50R20 | 33.00" | 14.5" | 6.50" | 611 |
| 35x14.50R20 | 35.00" | 14.5" | 7.50" | 576 |
| 37x14.50R20 | 37.00" | 14.5" | 8.50" | 545 |
| 38x14.50R20 | 38.00" | 14.5" | 9.00" | 531 |
| 38.5x14.50R20 | 38.50" | 14.5" | 9.25" | 524 |
| 40x14.50R20 | 40.00" | 14.5" | 10.00" | 504 |
| 41x14.50R20 | 41.00" | 14.5" | 10.50" | 492 |
| 42x14.50R20 | 42.00" | 14.5" | 11.00" | 480 |
| 43x14.50R20 | 43.00" | 14.5" | 11.50" | 469 |
| 45x14.50R20 | 45.00" | 14.5" | 12.50" | 448 |
| 375/45R20 | 33.29" | 14.8" | 6.64" | 606 |
| 375/55R20 | 36.24" | 14.8" | 8.12" | 557 |
| 29x15.00R20 | 29.00" | 15.0" | 4.50" | 695 |
| 39.5x15.00R20 | 39.50" | 15.0" | 9.75" | 511 |
| 42x15.00R20 | 42.00" | 15.0" | 11.00" | 480 |
| 43x15.00R20 | 43.00" | 15.0" | 11.50" | 469 |
| 35x15.50R20 | 35.00" | 15.5" | 7.50" | 576 |
| 36x15.50R20 | 36.00" | 15.5" | 8.00" | 560 |
| 38x15.50R20 | 38.00" | 15.5" | 9.00" | 531 |
| 40x15.50R20 | 40.00" | 15.5" | 10.00" | 504 |
| 395/60R20 | 38.66" | 15.6" | 9.33" | 522 |
| 29x18.00R20 | 29.00" | 18.0" | 4.50" | 695 |
| 31x18.00R20 | 31.00" | 18.0" | 5.50" | 651 |
| 44x19.50R20 | 44.00" | 19.5" | 12.00" | 458 |
| 46x19.50R20 | 46.00" | 19.5" | 13.00" | 438 |
| 44x21.00R20 | 44.00" | 21.0" | 12.00" | 458 |
| 33x22.00R20 | 33.00" | 22.0" | 6.50" | 611 |