Tire Calculations Chart
Browse sizes by wheel diameter and see how each differs from yours.
R8
wheel sizes
· 2 sizes
Tire Size
Diameter
Sidewall
vs current
400R8
0 mm
0 mm
—
650/80R8
1243 mm
520 mm
—
400R8
0 mm · 0 mm
—
650/80R8
1243 mm · 520 mm
—
R9
wheel sizes
· 1 sizes
Tire Size
Diameter
Sidewall
vs current
600R9
0 mm
0 mm
—
600R9
0 mm · 0 mm
—
R10
wheel sizes
· 6 sizes
Tire Size
Diameter
Sidewall
vs current
300/8R10
302 mm
24 mm
—
350/65R10
709 mm
228 mm
—
350/65R10
709 mm
228 mm
—
350/80R10
814 mm
280 mm
—
650R10
0 mm
0 mm
—
650/80R10
1294 mm
520 mm
—
300/8R10
302 mm · 24 mm
—
350/65R10
709 mm · 228 mm
—
350/65R10
709 mm · 228 mm
—
350/80R10
814 mm · 280 mm
—
650R10
0 mm · 0 mm
—
650/80R10
1294 mm · 520 mm
—
R12
wheel sizes
· 19 sizes
Tire Size
Diameter
Sidewall
vs current
6/80R12
314 mm
5 mm
—
16/500R12
465 mm
80 mm
—
16.5/80R12
330 mm
13 mm
—
16.5/80R12
330 mm
13 mm
—
110/70R12
459 mm
77 mm
—
120/70R12
473 mm
84 mm
—
145/70R12
508 mm
102 mm
—
155/70R12
522 mm
108 mm
—
175/70R12
550 mm
122 mm
—
300/65R12
695 mm
195 mm
—
300/80R12
785 mm
240 mm
—
500R12
0 mm
0 mm
—
500/65R12
955 mm
325 mm
—
500/80R12
1105 mm
400 mm
—
650/65R12
1150 mm
422 mm
—
700/12R12
473 mm
84 mm
—
700/65R12
1215 mm
455 mm
—
700/80R12
1425 mm
560 mm
—
80/18R12.5
346 mm
14 mm
—
6/80R12
314 mm · 5 mm
—
16/500R12
465 mm · 80 mm
—
16.5/80R12
330 mm · 13 mm
—
16.5/80R12
330 mm · 13 mm
—
110/70R12
459 mm · 77 mm
—
120/70R12
473 mm · 84 mm
—
145/70R12
508 mm · 102 mm
—
155/70R12
522 mm · 108 mm
—
175/70R12
550 mm · 122 mm
—
300/65R12
695 mm · 195 mm
—
300/80R12
785 mm · 240 mm
—
500R12
0 mm · 0 mm
—
500/65R12
955 mm · 325 mm
—
500/80R12
1105 mm · 400 mm
—
650/65R12
1150 mm · 422 mm
—
700/12R12
473 mm · 84 mm
—
700/65R12
1215 mm · 455 mm
—
700/80R12
1425 mm · 560 mm
—
80/18R12.5
346 mm · 14 mm
—
R13
wheel sizes
· 18 sizes
Tire Size
Diameter
Sidewall
vs current
145/70R13
533 mm
102 mm
—
155R13
0 mm
0 mm
—
155/65R13
532 mm
101 mm
—
155/70R13
547 mm
108 mm
—
155/80R13
578 mm
124 mm
—
Common
155/80R13
578 mm
124 mm
—
165/65R13
545 mm
107 mm
—
165/70R13
561 mm
116 mm
—
165/80R13
594 mm
132 mm
—
Common
175/70R13
575 mm
122 mm
—
Common
175/70R13
575 mm
122 mm
—
185/60R13
552 mm
111 mm
—
Common
185/70R13
589 mm
130 mm
—
Common
205/60R13
576 mm
123 mm
—
215/50R13
545 mm
107 mm
—
225/45R13
533 mm
101 mm
—
225/50R13
555 mm
113 mm
—
255/40R13
534 mm
102 mm
—
145/70R13
533 mm · 102 mm
—
155R13
0 mm · 0 mm
—
155/65R13
532 mm · 101 mm
—
155/70R13
547 mm · 108 mm
—
155/80R13
578 mm · 124 mm
—
155/80R13
578 mm · 124 mm
—
165/65R13
545 mm · 107 mm
—
165/70R13
561 mm · 116 mm
—
165/80R13
594 mm · 132 mm
—
175/70R13
575 mm · 122 mm
—
175/70R13
575 mm · 122 mm
—
185/60R13
552 mm · 111 mm
—
185/70R13
589 mm · 130 mm
—
205/60R13
576 mm · 123 mm
—
215/50R13
545 mm · 107 mm
—
225/45R13
533 mm · 101 mm
—
225/50R13
555 mm · 113 mm
—
255/40R13
534 mm · 102 mm
—
R14
wheel sizes
· 36 sizes
Tire Size
Diameter
Sidewall
vs current
30/10R14
362 mm
3 mm
—
30/12R14
363 mm
4 mm
—
105/70R14
503 mm
73 mm
—
115/70R14
517 mm
81 mm
—
125/70R14
531 mm
87 mm
—
135/80R14
572 mm
108 mm
—
155/65R14
557 mm
101 mm
—
Common
165/50R14
521 mm
83 mm
—
165/55R14
537 mm
91 mm
—
Common
165/60R14
554 mm
99 mm
—
165/65R14
570 mm
107 mm
—
165/70R14
586 mm
116 mm
—
175/65R14
583 mm
114 mm
—
175/70R14
601 mm
122 mm
—
185/50R14
541 mm
92 mm
—
185/55R14
559 mm
102 mm
—
Common
185/60R14
578 mm
111 mm
—
Common
185/60R14
578 mm
111 mm
—
185/65R14
596 mm
120 mm
—
185/70R14
615 mm
130 mm
—
185/80R14
652 mm
148 mm
—
195/8R14
387 mm
15 mm
—
195/45R14
531 mm
88 mm
—
195/50R14
551 mm
98 mm
—
195/60R14
590 mm
117 mm
—
195/70R14
629 mm
136 mm
—
195/75R14
648 mm
146 mm
—
205/50R14
561 mm
103 mm
—
205/55R14
581 mm
113 mm
—
205/70R14
643 mm
144 mm
—
Common
205/75R14
663 mm
154 mm
—
225/50R14
581 mm
113 mm
—
450R14
0 mm
0 mm
—
450/65R14
941 mm
293 mm
—
650/65R14
1201 mm
422 mm
—
650/80R14
1395 mm
520 mm
—
30/10R14
362 mm · 3 mm
—
30/12R14
363 mm · 4 mm
—
105/70R14
503 mm · 73 mm
—
115/70R14
517 mm · 81 mm
—
125/70R14
531 mm · 87 mm
—
135/80R14
572 mm · 108 mm
—
155/65R14
557 mm · 101 mm
—
165/50R14
521 mm · 83 mm
—
165/55R14
537 mm · 91 mm
—
165/60R14
554 mm · 99 mm
—
165/65R14
570 mm · 107 mm
—
165/70R14
586 mm · 116 mm
—
175/65R14
583 mm · 114 mm
—
175/70R14
601 mm · 122 mm
—
185/50R14
541 mm · 92 mm
—
185/55R14
559 mm · 102 mm
—
185/60R14
578 mm · 111 mm
—
185/60R14
578 mm · 111 mm
—
185/65R14
596 mm · 120 mm
—
185/70R14
615 mm · 130 mm
—
185/80R14
652 mm · 148 mm
—
195/8R14
387 mm · 15 mm
—
195/45R14
531 mm · 88 mm
—
195/50R14
551 mm · 98 mm
—
195/60R14
590 mm · 117 mm
—
195/70R14
629 mm · 136 mm
—
195/75R14
648 mm · 146 mm
—
205/50R14
561 mm · 103 mm
—
205/55R14
581 mm · 113 mm
—
205/70R14
643 mm · 144 mm
—
205/75R14
663 mm · 154 mm
—
225/50R14
581 mm · 113 mm
—
450R14
0 mm · 0 mm
—
450/65R14
941 mm · 293 mm
—
650/65R14
1201 mm · 422 mm
—
650/80R14
1395 mm · 520 mm
—
R15
wheel sizes
· 45 sizes
Tire Size
Diameter
Sidewall
vs current
10.5/31R15
387 mm
3 mm
—
28/9R15
386 mm
3 mm
—
125/60R15
531 mm
75 mm
—
155/60R15
567 mm
93 mm
—
Common
165/60R15
579 mm
99 mm
—
Common
175/50R15
556 mm
87 mm
—
175/55R15
574 mm
96 mm
—
Common
185/55R15
584 mm
102 mm
—
Common
185/60R15
603 mm
111 mm
—
Common
185/65R15
622 mm
120 mm
—
Common
195/8R15
412 mm
15 mm
—
195/40R15
537 mm
78 mm
—
195/45R15
557 mm
88 mm
—
195/50R15
576 mm
98 mm
—
Common
195/55R15
595 mm
107 mm
—
Common
195/60R15
615 mm
117 mm
—
195/65R15
634 mm
127 mm
—
Common
195/70R15
654 mm
136 mm
—
205/40R15
545 mm
82 mm
—
205/55R15
607 mm
113 mm
—
Common
205/60R15
627 mm
123 mm
—
205/65R15
647 mm
133 mm
—
205/70R15
668 mm
144 mm
—
Common
205/75R15
689 mm
154 mm
—
215/35R15
532 mm
75 mm
—
215/40R15
553 mm
86 mm
—
215/70R15
682 mm
151 mm
—
Common
215/70R15
682 mm
151 mm
—
225/70R15
696 mm
157 mm
—
Common
225/75R15
719 mm
169 mm
—
235/75R15
734 mm
176 mm
—
Common
255/70R15
738 mm
179 mm
—
500R15
0 mm
0 mm
—
500/65R15
1031 mm
325 mm
—
600/80R15
1341 mm
480 mm
—
700R15
0 mm
0 mm
—
700/65R15
1291 mm
455 mm
—
700/80R15
1501 mm
560 mm
—
815R15
0 mm
0 mm
—
815/14R15
609 mm
114 mm
—
815/65R15
1440 mm
530 mm
—
825R15
0 mm
0 mm
—
825/14R15
612 mm
116 mm
—
75/10R15.3
404 mm
8 mm
—
38/12R15.5
403 mm
5 mm
—
10.5/31R15
387 mm · 3 mm
—
28/9R15
386 mm · 3 mm
—
125/60R15
531 mm · 75 mm
—
155/60R15
567 mm · 93 mm
—
165/60R15
579 mm · 99 mm
—
175/50R15
556 mm · 87 mm
—
175/55R15
574 mm · 96 mm
—
185/55R15
584 mm · 102 mm
—
185/60R15
603 mm · 111 mm
—
185/65R15
622 mm · 120 mm
—
195/8R15
412 mm · 15 mm
—
195/40R15
537 mm · 78 mm
—
195/45R15
557 mm · 88 mm
—
195/50R15
576 mm · 98 mm
—
195/55R15
595 mm · 107 mm
—
195/60R15
615 mm · 117 mm
—
195/65R15
634 mm · 127 mm
—
195/70R15
654 mm · 136 mm
—
205/40R15
545 mm · 82 mm
—
205/55R15
607 mm · 113 mm
—
205/60R15
627 mm · 123 mm
—
205/65R15
647 mm · 133 mm
—
205/70R15
668 mm · 144 mm
—
205/75R15
689 mm · 154 mm
—
215/35R15
532 mm · 75 mm
—
215/40R15
553 mm · 86 mm
—
215/70R15
682 mm · 151 mm
—
215/70R15
682 mm · 151 mm
—
225/70R15
696 mm · 157 mm
—
225/75R15
719 mm · 169 mm
—
235/75R15
734 mm · 176 mm
—
255/70R15
738 mm · 179 mm
—
500R15
0 mm · 0 mm
—
500/65R15
1031 mm · 325 mm
—
600/80R15
1341 mm · 480 mm
—
700R15
0 mm · 0 mm
—
700/65R15
1291 mm · 455 mm
—
700/80R15
1501 mm · 560 mm
—
815R15
0 mm · 0 mm
—
815/14R15
609 mm · 114 mm
—
815/65R15
1440 mm · 530 mm
—
825R15
0 mm · 0 mm
—
825/14R15
612 mm · 116 mm
—
75/10R15.3
404 mm · 8 mm
—
38/12R15.5
403 mm · 5 mm
—
R16
wheel sizes
· 46 sizes
Tire Size
Diameter
Sidewall
vs current
100/90R16
586 mm
90 mm
—
110/70R16
560 mm
77 mm
—
110/90R16
605 mm
99 mm
—
125/50R16
531 mm
62 mm
—
175/50R16
581 mm
87 mm
—
195/40R16
562 mm
78 mm
—
195/45R16
582 mm
88 mm
—
195/55R16
621 mm
107 mm
—
195/60R16
640 mm
117 mm
—
195/75R16
699 mm
146 mm
—
205R16
0 mm
0 mm
—
205/8R16
439 mm
17 mm
—
205/40R16
570 mm
82 mm
—
205/45R16
591 mm
92 mm
—
205/50R16
611 mm
103 mm
—
205/55R16
632 mm
113 mm
—
Common
205/60R16
653 mm
123 mm
—
205/65R16
673 mm
133 mm
—
215/35R16
557 mm
75 mm
—
215/40R16
578 mm
86 mm
—
215/55R16
643 mm
118 mm
—
215/60R16
664 mm
129 mm
—
215/65R16
686 mm
140 mm
—
215/70R16
707 mm
151 mm
—
225/55R16
654 mm
124 mm
—
225/75R16
744 mm
169 mm
—
235/60R16
688 mm
141 mm
—
235/65R16
712 mm
153 mm
—
235/70R16
735 mm
165 mm
—
245/75R16
774 mm
184 mm
—
450R16
0 mm
0 mm
—
450/8R16
478 mm
36 mm
—
600R16
0 mm
0 mm
—
600/8R16
502 mm
48 mm
—
650R16
0 mm
0 mm
—
650/8R16
510 mm
52 mm
—
700R16
0 mm
0 mm
—
700/8R16
518 mm
56 mm
—
700/10R16
546 mm
70 mm
—
700/80R16
1526 mm
560 mm
—
750R16
0 mm
0 mm
—
750/8R16
526 mm
60 mm
—
750/14R16
616 mm
105 mm
—
750/16R16
646 mm
120 mm
—
800/16R16
662 mm
128 mm
—
38/12R16.9
438 mm
5 mm
—
100/90R16
586 mm · 90 mm
—
110/70R16
560 mm · 77 mm
—
110/90R16
605 mm · 99 mm
—
125/50R16
531 mm · 62 mm
—
175/50R16
581 mm · 87 mm
—
195/40R16
562 mm · 78 mm
—
195/45R16
582 mm · 88 mm
—
195/55R16
621 mm · 107 mm
—
195/60R16
640 mm · 117 mm
—
195/75R16
699 mm · 146 mm
—
205R16
0 mm · 0 mm
—
205/8R16
439 mm · 17 mm
—
205/40R16
570 mm · 82 mm
—
205/45R16
591 mm · 92 mm
—
205/50R16
611 mm · 103 mm
—
205/55R16
632 mm · 113 mm
—
205/60R16
653 mm · 123 mm
—
205/65R16
673 mm · 133 mm
—
215/35R16
557 mm · 75 mm
—
215/40R16
578 mm · 86 mm
—
215/55R16
643 mm · 118 mm
—
215/60R16
664 mm · 129 mm
—
215/65R16
686 mm · 140 mm
—
215/70R16
707 mm · 151 mm
—
225/55R16
654 mm · 124 mm
—
225/75R16
744 mm · 169 mm
—
235/60R16
688 mm · 141 mm
—
235/65R16
712 mm · 153 mm
—
235/70R16
735 mm · 165 mm
—
245/75R16
774 mm · 184 mm
—
450R16
0 mm · 0 mm
—
450/8R16
478 mm · 36 mm
—
600R16
0 mm · 0 mm
—
600/8R16
502 mm · 48 mm
—
650R16
0 mm · 0 mm
—
650/8R16
510 mm · 52 mm
—
700R16
0 mm · 0 mm
—
700/8R16
518 mm · 56 mm
—
700/10R16
546 mm · 70 mm
—
700/80R16
1526 mm · 560 mm
—
750R16
0 mm · 0 mm
—
750/8R16
526 mm · 60 mm
—
750/14R16
616 mm · 105 mm
—
750/16R16
646 mm · 120 mm
—
800/16R16
662 mm · 128 mm
—
38/12R16.9
438 mm · 5 mm
—
R17
wheel sizes
· 36 sizes
Tire Size
Diameter
Sidewall
vs current
100R17
0 mm
0 mm
—
100/90R17
612 mm
90 mm
—
110/90R17
630 mm
99 mm
—
120/70R17
600 mm
84 mm
—
120/80R17
624 mm
96 mm
—
205/40R17
596 mm
82 mm
—
205/45R17
616 mm
92 mm
—
205/50R17
637 mm
103 mm
—
205/55R17
657 mm
113 mm
—
215/45R17
625 mm
97 mm
—
215/50R17
647 mm
107 mm
—
215/55R17
668 mm
118 mm
—
215/60R17
690 mm
129 mm
—
215/65R17
711 mm
140 mm
—
225/45R17
634 mm
101 mm
—
225/50R17
657 mm
113 mm
—
225/55R17
679 mm
124 mm
—
225/60R17
702 mm
135 mm
—
Common
225/65R17
724 mm
146 mm
—
225/65R17
724 mm
146 mm
—
235/45R17
643 mm
106 mm
—
235/55R17
690 mm
129 mm
—
235/60R17
714 mm
141 mm
—
235/65R17
737 mm
153 mm
—
245/45R17
652 mm
110 mm
—
245/75R17
799 mm
184 mm
—
255/55R17
712 mm
140 mm
—
255/60R17
738 mm
153 mm
—
265/65R17
776 mm
172 mm
—
275R17
0 mm
0 mm
—
285/75R17
859 mm
214 mm
—
295/70R17
845 mm
207 mm
—
300R17
0 mm
0 mm
—
305/70R17
859 mm
214 mm
—
215/75R17.5
767 mm
161 mm
—
235/75R17.5
797 mm
176 mm
—
100R17
0 mm · 0 mm
—
100/90R17
612 mm · 90 mm
—
110/90R17
630 mm · 99 mm
—
120/70R17
600 mm · 84 mm
—
120/80R17
624 mm · 96 mm
—
205/40R17
596 mm · 82 mm
—
205/45R17
616 mm · 92 mm
—
205/50R17
637 mm · 103 mm
—
205/55R17
657 mm · 113 mm
—
215/45R17
625 mm · 97 mm
—
215/50R17
647 mm · 107 mm
—
215/55R17
668 mm · 118 mm
—
215/60R17
690 mm · 129 mm
—
215/65R17
711 mm · 140 mm
—
225/45R17
634 mm · 101 mm
—
225/50R17
657 mm · 113 mm
—
225/55R17
679 mm · 124 mm
—
225/60R17
702 mm · 135 mm
—
225/65R17
724 mm · 146 mm
—
225/65R17
724 mm · 146 mm
—
235/45R17
643 mm · 106 mm
—
235/55R17
690 mm · 129 mm
—
235/60R17
714 mm · 141 mm
—
235/65R17
737 mm · 153 mm
—
245/45R17
652 mm · 110 mm
—
245/75R17
799 mm · 184 mm
—
255/55R17
712 mm · 140 mm
—
255/60R17
738 mm · 153 mm
—
265/65R17
776 mm · 172 mm
—
275R17
0 mm · 0 mm
—
285/75R17
859 mm · 214 mm
—
295/70R17
845 mm · 207 mm
—
300R17
0 mm · 0 mm
—
305/70R17
859 mm · 214 mm
—
215/75R17.5
767 mm · 161 mm
—
235/75R17.5
797 mm · 176 mm
—
R18
wheel sizes
· 29 sizes
Tire Size
Diameter
Sidewall
vs current
12/80R18
477 mm
10 mm
—
100/90R18
637 mm
90 mm
—
215/50R18
672 mm
107 mm
—
215/80R18
801 mm
172 mm
—
225/40R18
637 mm
90 mm
—
225/45R18
660 mm
101 mm
—
225/55R18
705 mm
124 mm
—
225/60R18
727 mm
135 mm
—
235/40R18
645 mm
94 mm
—
235/40R18
645 mm
94 mm
—
235/45R18
669 mm
106 mm
—
235/50R18
692 mm
118 mm
—
235/55R18
716 mm
129 mm
—
235/60R18
739 mm
141 mm
—
245/40R18
653 mm
98 mm
—
245/45R18
678 mm
110 mm
—
255/35R18
636 mm
89 mm
—
265/60R18
775 mm
159 mm
—
275R18
0 mm
0 mm
—
275/70R18
842 mm
193 mm
—
285/60R18
799 mm
171 mm
—
285/70R18
856 mm
199 mm
—
295/65R18
841 mm
192 mm
—
300R18
0 mm
0 mm
—
305/65R18
854 mm
198 mm
—
315/70R18
898 mm
220 mm
—
325R18
0 mm
0 mm
—
325/60R18
847 mm
195 mm
—
350R18
0 mm
0 mm
—
12/80R18
477 mm · 10 mm
—
100/90R18
637 mm · 90 mm
—
215/50R18
672 mm · 107 mm
—
215/80R18
801 mm · 172 mm
—
225/40R18
637 mm · 90 mm
—
225/45R18
660 mm · 101 mm
—
225/55R18
705 mm · 124 mm
—
225/60R18
727 mm · 135 mm
—
235/40R18
645 mm · 94 mm
—
235/40R18
645 mm · 94 mm
—
235/45R18
669 mm · 106 mm
—
235/50R18
692 mm · 118 mm
—
235/55R18
716 mm · 129 mm
—
235/60R18
739 mm · 141 mm
—
245/40R18
653 mm · 98 mm
—
245/45R18
678 mm · 110 mm
—
255/35R18
636 mm · 89 mm
—
265/60R18
775 mm · 159 mm
—
275R18
0 mm · 0 mm
—
275/70R18
842 mm · 193 mm
—
285/60R18
799 mm · 171 mm
—
285/70R18
856 mm · 199 mm
—
295/65R18
841 mm · 192 mm
—
300R18
0 mm · 0 mm
—
305/65R18
854 mm · 198 mm
—
315/70R18
898 mm · 220 mm
—
325R18
0 mm · 0 mm
—
325/60R18
847 mm · 195 mm
—
350R18
0 mm · 0 mm
—
R19
wheel sizes
· 10 sizes
Tire Size
Diameter
Sidewall
vs current
225/45R19
685 mm
101 mm
—
235/45R19
694 mm
106 mm
—
235/50R19
718 mm
118 mm
—
235/55R19
741 mm
129 mm
—
245/45R19
703 mm
110 mm
—
245/70R19
826 mm
171 mm
—
255/45R19
712 mm
115 mm
—
275/50R19
758 mm
137 mm
—
285/45R19
739 mm
128 mm
—
285/50R19
768 mm
142 mm
—
225/45R19
685 mm · 101 mm
—
235/45R19
694 mm · 106 mm
—
235/50R19
718 mm · 118 mm
—
235/55R19
741 mm · 129 mm
—
245/45R19
703 mm · 110 mm
—
245/70R19
826 mm · 171 mm
—
255/45R19
712 mm · 115 mm
—
275/50R19
758 mm · 137 mm
—
285/45R19
739 mm · 128 mm
—
285/50R19
768 mm · 142 mm
—
R20
wheel sizes
· 18 sizes
Tire Size
Diameter
Sidewall
vs current
16/70R20
530 mm
11 mm
—
265/50R20
773 mm
133 mm
—
275/40R20
728 mm
110 mm
—
295/65R20
892 mm
192 mm
—
315/35R20
728 mm
110 mm
—
325/13R20
593 mm
42 mm
—
325/60R20
898 mm
195 mm
—
355/11R20
586 mm
39 mm
—
650R20
0 mm
0 mm
—
650/10R20
638 mm
65 mm
—
750/80R20
1708 mm
600 mm
—
900R20
0 mm
0 mm
—
900/80R20
1948 mm
720 mm
—
1000R20
0 mm
0 mm
—
1100R20
0 mm
0 mm
—
1100/18R20
904 mm
198 mm
—
1200R20
0 mm
0 mm
—
1200/16R20
892 mm
192 mm
—
16/70R20
530 mm · 11 mm
—
265/50R20
773 mm · 133 mm
—
275/40R20
728 mm · 110 mm
—
295/65R20
892 mm · 192 mm
—
315/35R20
728 mm · 110 mm
—
325/13R20
593 mm · 42 mm
—
325/60R20
898 mm · 195 mm
—
355/11R20
586 mm · 39 mm
—
650R20
0 mm · 0 mm
—
650/10R20
638 mm · 65 mm
—
750/80R20
1708 mm · 600 mm
—
900R20
0 mm · 0 mm
—
900/80R20
1948 mm · 720 mm
—
1000R20
0 mm · 0 mm
—
1100R20
0 mm · 0 mm
—
1100/18R20
904 mm · 198 mm
—
1200R20
0 mm · 0 mm
—
1200/16R20
892 mm · 192 mm
—
R21
wheel sizes
· 12 sizes
Tire Size
Diameter
Sidewall
vs current
235/45R21
745 mm
106 mm
—
245/30R21
680 mm
73 mm
—
245/35R21
705 mm
86 mm
—
255/30R21
686 mm
76 mm
—
265/30R21
692 mm
80 mm
—
265/40R21
745 mm
106 mm
—
275/30R21
699 mm
83 mm
—
285/30R21
704 mm
86 mm
—
295/25R21
681 mm
74 mm
—
295/30R21
710 mm
88 mm
—
305/25R21
686 mm
76 mm
—
335/25R21
701 mm
84 mm
—
235/45R21
745 mm · 106 mm
—
245/30R21
680 mm · 73 mm
—
245/35R21
705 mm · 86 mm
—
255/30R21
686 mm · 76 mm
—
265/30R21
692 mm · 80 mm
—
265/40R21
745 mm · 106 mm
—
275/30R21
699 mm · 83 mm
—
285/30R21
704 mm · 86 mm
—
295/25R21
681 mm · 74 mm
—
295/30R21
710 mm · 88 mm
—
305/25R21
686 mm · 76 mm
—
335/25R21
701 mm · 84 mm
—
R22
wheel sizes
· 10 sizes
Tire Size
Diameter
Sidewall
vs current
245/45R22
779 mm
110 mm
—
255/40R22
763 mm
102 mm
—
265/40R22
771 mm
106 mm
—
275/40R22
779 mm
110 mm
—
295/35R22
765 mm
103 mm
—
305/35R22
772 mm
107 mm
—
315/35R22
779 mm
110 mm
—
295/80R22.5
1043 mm
236 mm
—
315/80R22.5
1075 mm
252 mm
—
385/65R22.5
1072 mm
250 mm
—
245/45R22
779 mm · 110 mm
—
255/40R22
763 mm · 102 mm
—
265/40R22
771 mm · 106 mm
—
275/40R22
779 mm · 110 mm
—
295/35R22
765 mm · 103 mm
—
305/35R22
772 mm · 107 mm
—
315/35R22
779 mm · 110 mm
—
295/80R22.5
1043 mm · 236 mm
—
315/80R22.5
1075 mm · 252 mm
—
385/65R22.5
1072 mm · 250 mm
—
R23
wheel sizes
· 1 sizes
Tire Size
Diameter
Sidewall
vs current
225R23
0 mm
0 mm
—
225R23
0 mm · 0 mm
—
R24
wheel sizes
· 7 sizes
Tire Size
Diameter
Sidewall
vs current
11/8R24
611 mm
1 mm
—
12/400R24
706 mm
48 mm
—
12.4/80R24
629 mm
10 mm
—
13/8R24
612 mm
1 mm
—
1200R24
0 mm
0 mm
—
1200/20R24
1090 mm
240 mm
—
1200/22R24
1138 mm
264 mm
—
11/8R24
611 mm · 1 mm
—
12/400R24
706 mm · 48 mm
—
12.4/80R24
629 mm · 10 mm
—
13/8R24
612 mm · 1 mm
—
1200R24
0 mm · 0 mm
—
1200/20R24
1090 mm · 240 mm
—
1200/22R24
1138 mm · 264 mm
—
R28
wheel sizes
· 1 sizes
Tire Size
Diameter
Sidewall
vs current
480/70R28
1383 mm
336 mm
—
480/70R28
1383 mm · 336 mm
—
R38
wheel sizes
· 1 sizes
Tire Size
Diameter
Sidewall
vs current
15.5/80R38
989 mm
12 mm
—
15.5/80R38
989 mm · 12 mm
—
Closest / Good
Acceptable
Poor
How to Read Tire Sizes
205/55R16
205
Width
Tire width in millimetres, sidewall to sidewall.
55
Aspect
Sidewall height as a % of the width.
R16
Rim
Wheel diameter in inches the tire mounts on.