Tire Size Conversion Chart - Inches to Metric - by Overall Tire Diameter

Tire Size Conversion Chart - Inches to Metric - by Overall Tire Diameter shows the inch tire sizes and for every inch tire size displays equvalent metric tire size.

The tire size conversion chart together with our Tire Size Converter can be useful if one wants to replace an inch tire with a metric tire and vice versa, both might help you find an equivalent tire size in the other system of measurement.

Inch tire sizes are grouped by an overall tire diameter - one chart for each overall diameter, which you can select by click on the appropriate link.

The chart data can be filtered and sorted by each column with a click on the appropriate table column heading.

More information on how to use the charts on this page: How to use the charts.

Please choose the tire overall diameter:

Tire size conversion chart for the overall diameter: 22"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
22.0X8.0R13203/56R1313
22.0X8.0R15203/44R1515
22.5X4.5R15114/83R1515

Tire size conversion chart for the overall diameter: 24"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
24.0X4.5R15114/100R1515
24.0X5.0R15127/90R1515
24.5X8.0R13203/72R1313
24.5X9.0R13229/64R1313
24.5X8.0R15203/59R1515

Tire size conversion chart for the overall diameter: 26"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
26.0X8.5R14216/71R1414
26.0X6.0R15152/92R1515
26.0X7.5R15191/73R1515
26.0X8.0R15203/69R1515
26.0X8.5R15216/65R1515
26.0X10.0R15254/55R1515
26.0X10.5R15267/52R1515
26.0X11.5R15292/48R1515
26.0X11.5R16292/43R1616
26.0X11.5R17292/39R1717
26.0X12.0R18305/33R1818

Tire size conversion chart for the overall diameter: 27"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
27.0X9.5R14241/68R1414
27.0X9.5R15241/63R1515
27.0X10.5R15267/57R1515
27.5X4.5R15114/139R1515

Tire size conversion chart for the overall diameter: 28"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
28.0X8.5R14216/82R1414
28.0X4.5R15114/144R1515
28.0X7.5R15191/87R1515
28.0X9.0R15229/72R1515
28.0X10.5R15267/62R1515
28.0X11.5R15292/57R1515
28.0X12.5R15318/52R1515
28.0X13.5R15343/48R1515
28.0X11.5R16292/52R1616

Tire size conversion chart for the overall diameter: 29"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
29.0X4.5R15114/156R1515
29.0X8.5R15216/82R1515
29.0X10.5R15267/67R1515
29.0X11.5R15292/61R1515
29.0X12.5R15318/56R1515
29.0X15.5R15394/45R1515
29.0X18.0R15457/39R1515
29.0X18.5R15470/38R1515
29.5X9.0R15229/81R1515
29.5X11.5R15292/63R1515
29.5X13.5R15343/54R1515

Tire size conversion chart for the overall diameter: 30"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
30.0X7.0R15178/107R1515
30.0X9.0R15229/83R1515
30.0X9.5R15241/79R1515
30.0X10.5R15267/71R1515
30.0X11.5R15292/65R1515
30.0X12.5R15318/60R1515
30.0X13.5R15343/56R1515
30.0X11.5R16292/61R1616

Tire size conversion chart for the overall diameter: 31"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
31.0X9.5R15241/84R1515
31.0X10.5R15267/76R1515
31.0X11.0R15279/73R1515
31.0X11.5R15292/70R1515
31.0X12.5R15318/64R1515
31.0X13.0R15330/62R1515
31.0X13.5R15343/59R1515
31.0X14.5R15368/55R1515
31.0X16.5R15419/48R1515
31.0X18.0R15457/44R1515
31.0X18.5R15470/43R1515
31.0X10.5R16267/71R1616
31.0X11.0R16279/68R1616
31.0X11.5R16292/65R1616
31.0X12.5R16318/60R1616
31.0X10.5R17267/67R1717
31.0X18.0R20457/31R2020

Tire size conversion chart for the overall diameter: 32"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
32.0X9.5R15241/89R1515
32.0X10.5R15267/81R1515
32.0X11.5R15292/74R1515
32.0X14.0R15356/61R1515
32.0X16.0R15406/53R1515
32.0X17.5R15445/49R1515
32.0X18.5R15470/46R1515
32.0X9.0R16229/89R1616
32.0X9.5R16241/84R1616
32.0X10.0R16254/80R1616
32.0X10.5R16267/76R1616
32.0X11.5R16292/70R1616
32.0X10.5R17267/71R1717
32.0X11.5R17292/65R1717

Tire size conversion chart for the overall diameter: 33"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
33.0X9.0R15229/100R1515
33.0X9.5R15241/95R1515
33.0X10.5R15267/86R1515
33.0X11.5R15292/78R1515
33.0X12.5R15318/72R1515
33.0X13.0R15330/69R1515
33.0X13.5R15343/67R1515
33.0X14.0R15356/64R1515
33.0X14.5R15368/62R1515
33.0X15.5R15394/58R1515
33.0X16.5R15419/55R1515
33.0X19.5R15495/46R1515
33.0X21.5R15546/42R1515
33.0X10.5R16267/81R1616
33.0X11.5R16292/74R1616
33.0X12.5R16318/68R1616
33.0X13.0R16330/65R1616
33.0X13.5R16343/63R1616
33.0X14.0R16356/61R1616
33.0X14.5R16368/59R1616
33.0X11.5R16.5292/72R16.516.5
33.0X12.5R16.5318/66R16.516.5
33.0X14.0R16.5356/59R16.516.5
33.0X14.5R16.5368/57R16.516.5
33.0X15.5R16.5394/53R16.516.5
33.0X10.5R17267/76R1717
33.0X12.5R17318/64R1717
33.0X13.0R17330/62R1717
33.0X13.5R17343/59R1717
33.0X11.5R18292/65R1818
33.0X12.5R18318/60R1818
33.0X13.5R18343/56R1818
33.0X12.5R20318/52R2020
33.0X13.5R20343/48R2020
33.0X12.5R22318/44R2222
33.5X16.5R16419/53R1616

Tire size conversion chart for the overall diameter: 34"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
34.0X9.5R15241/100R1515
34.0X10.5R15267/90R1515
34.0X12.5R15318/76R1515
34.0X9.0R16229/100R1616
34.0X10.5R16267/86R1616
34.0X12.5R16318/72R1616
34.0X13.5R16343/67R1616
34.0X9.5R16.5241/92R16.516.5
34.0X10.5R17267/81R1717
34.5X17.0R16432/54R1616

Tire size conversion chart for the overall diameter: 35"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
35.0X10.5R15267/95R1515
35.0X12.5R15318/80R1515
35.0X13.5R15343/74R1515
35.0X14.5R15368/69R1515
35.0X15.0R15381/67R1515
35.0X15.5R15394/65R1515
35.0X16.0R15406/63R1515
35.0X10.5R16267/90R1616
35.0X12.5R16318/76R1616
35.0X14.5R16368/66R1616
35.0X15.0R16381/63R1616
35.0X16.0R16406/59R1616
35.0X12.5R16.5318/74R16.516.5
35.0X14.5R16.5368/64R16.516.5
35.0X15.0R16.5381/62R16.516.5
35.0X15.5R16.5394/60R16.516.5
35.0X16.0R16.5406/58R16.516.5
35.0X10.5R17267/86R1717
35.0X12.5R17318/72R1717
35.0X14.5R17368/62R1717
35.0X12.5R18318/68R1818
35.0X13.5R18343/63R1818
35.0X14.5R18368/59R1818
35.0X12.5R20318/60R2020
35.0X13.5R20343/56R2020
35.0X14.5R20368/52R2020
35.0X12.5R22318/52R2222
35.0X14.5R22368/45R2222

Tire size conversion chart for the overall diameter: 36"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
36.0X12.5R15318/84R1515
36.0X13.5R15343/78R1515
36.0X14.5R15368/72R1515
36.0X12.5R16318/80R1616
36.0X13.0R16330/77R1616
36.0X13.5R16343/74R1616
36.0X14.5R16368/69R1616
36.0X12.5R16.5318/78R16.516.5
36.0X13.5R16.5343/72R16.516.5
36.0X14.5R16.5368/67R16.516.5
36.0X16.0R16.5406/61R16.516.5
36.0X12.5R17318/76R1717
36.0X13.5R17343/70R1717
36.0X13.5R18343/67R1818
36.0X13.5R20343/59R2020
36.0X15.5R20394/52R2020

Tire size conversion chart for the overall diameter: 37"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
37.0X12.5R15318/88R1515
37.0X13.0R15330/85R1515
37.0X13.5R15343/81R1515
37.0X14.0R15356/79R1515
37.0X14.5R15368/76R1515
37.0X12.5R16318/84R1616
37.0X13.0R16330/81R1616
37.0X13.5R16343/78R1616
37.0X14.0R16356/75R1616
37.0X14.5R16368/72R1616
37.0X12.5R16.5318/82R16.516.5
37.0X13.0R16.5330/79R16.516.5
37.0X14.0R16.5356/73R16.516.5
37.0X12.5R17318/80R1717
37.0X13.0R17330/77R1717
37.0X13.5R17343/74R1717
37.0X14.0R17356/71R1717
37.0X12.5R18318/76R1818
37.0X13.5R18343/70R1818
37.0X12.5R20318/68R2020
37.0X13.5R20343/63R2020
37.0X13.5R22343/56R2222
37.0X13.5R24343/48R2424

Tire size conversion chart for the overall diameter: 38"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
38.0X12.5R15318/92R1515
38.0X13.0R15330/88R1515
38.0X14.5R15368/79R1515
38.0X15.5R15394/74R1515
38.0X13.0R16330/85R1616
38.0X14.5R16368/76R1616
38.0X15.5R16394/71R1616
38.0X11.0R16.5279/98R16.516.5
38.0X12.5R16.5318/86R16.516.5
38.0X15.5R16.5394/69R16.516.5
38.0X13.5R17343/78R1717
38.0X14.5R17368/72R1717
38.0X15.5R17394/68R1717
38.0X13.5R18343/74R1818
38.0X14.5R18368/69R1818
38.0X15.0R18381/67R1818
38.0X15.5R18394/65R1818
38.0X13.5R20343/67R2020
38.0X14.5R20368/62R2020
38.0X15.5R20394/58R2020
38.0X13.5R24343/52R2424
38.0X14.0R24356/50R2424
38.5X11.0R15279/107R1515
38.5X13.5R15343/87R1515
38.5X14.5R15368/81R1515
38.5X15.0R15381/78R1515
38.5X16.0R15406/73R1515
38.5X11.0R16279/102R1616
38.5X13.5R16343/83R1616
38.5X14.5R16368/78R1616
38.5X15.0R16381/75R1616
38.5X11.0R16.5279/100R16.516.5
38.5X13.5R16.5343/81R16.516.5
38.5X14.5R16.5368/76R16.516.5
38.5X15.0R16.5381/73R16.516.5
38.5X16.0R16.5406/69R16.516.5
38.5X13.5R17343/80R1717
38.5X14.5R17368/74R1717
38.5X14.5R18368/71R1818
38.5X13.5R20343/69R2020
38.5X14.5R20368/64R2020

Tire size conversion chart for the overall diameter: 39"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
39.0X13.5R15343/89R1515
39.0X13.5R16343/85R1616
39.0X13.5R16.5343/83R16.516.5
39.0X13.5R17343/81R1717
39.0X13.5R20343/70R2020
39.5X13.5R15343/91R1515
39.5X15.0R15381/82R1515
39.5X18.0R15457/68R1515
39.5X13.5R16343/87R1616
39.5X15.0R16381/78R1616
39.5X13.5R16.5343/85R16.516.5
39.5X15.0R16.5381/77R16.516.5
39.5X18.0R16.5457/64R16.516.5
39.5X13.5R17343/83R1717
39.5X15.0R17381/75R1717
39.5X13.5R20343/72R2020
39.5X15.0R20381/65R2020

Tire size conversion chart for the overall diameter: 40"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
40.0X16.0R15406/78R1515
40.0X16.0R16406/75R1616
40.0X13.5R17343/85R1717
40.0X14.5R17368/79R1717
40.0X16.0R17406/72R1717
40.0X13.5R18343/81R1818
40.0X14.5R18368/76R1818
40.0X14.5R20368/69R2020
40.0X15.5R20394/65R2020
40.0X14.5R22368/62R2222
40.0X15.5R22394/58R2222
40.0X14.5R24368/55R2424

Tire size conversion chart for the overall diameter: 41"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
41.0X14.5R16368/86R1616
41.0X14.5R17368/83R1717
41.0X14.5R18368/79R1818
41.0X14.5R20368/72R2020
41.0X14.5R22368/66R2222

Tire size conversion chart for the overall diameter: 42"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
42.0X14.0R15356/96R1515
42.0X15.0R15381/90R1515
42.0X14.0R16356/93R1616
42.0X15.0R16381/87R1616
42.0X14.0R16.5356/91R16.516.5
42.0X15.0R16.5381/85R16.516.5
42.0X14.0R17356/89R1717
42.0X14.5R17368/86R1717
42.0X15.0R17381/83R1717
42.0X14.5R20368/76R2020
42.0X15.0R20381/73R2020
42.5X13.5R15343/102R1515
42.5X13.5R16343/98R1616
42.5X13.5R16.5343/96R16.516.5
42.5X13.5R17343/94R1717
42.5X13.5R20343/83R2020
42.5X13.5R22343/76R2222

Tire size conversion chart for the overall diameter: 43"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
43.0X14.5R16.5368/91R16.516.5
43.0X14.5R17368/90R1717
43.0X14.5R20368/79R2020

Tire size conversion chart for the overall diameter: 44"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
44.0X18.5R15470/78R1515
44.0X19.5R15495/74R1515
44.0X21.0R15533/69R1515
44.0X19.5R16495/72R1616
44.0X21.0R16533/67R1616
44.0X18.5R16.5470/74R16.516.5
44.0X19.5R16.5495/71R16.516.5
44.0X21.0R16.5533/65R16.516.5
44.0X19.5R17495/69R1717
44.0X21.0R17533/64R1717
44.0X19.5R20495/62R2020
44.0X21.0R20533/57R2020

Tire size conversion chart for the overall diameter: 46"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
46.0X19.5R16495/77R1616
46.0X19.5R20495/67R2020

Tire size conversion chart for the overall diameter: 47"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
47.0X17.0R15432/94R1515
47.0X17.0R16.5432/90R16.516.5
47.0X17.0R17432/88R1717

Tire size conversion chart for the overall diameter: 49"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
49.0X21.0R16.5533/77R16.516.5
49.0X21.0R17533/76R1717
49.0X21.0R20533/69R2020

Tire size conversion chart for the overall diameter: 54"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
54.0X19.5R17495/95R1717
54.0X19.5R20495/87R2020

Note: The equivalent metric tire sizes displayed in the chart are not the real tire sizes which you can buy in a store, these are only a hints. Our Tire Size Converter can give you an additional and more precise information because besides the exact calculated metric tire dimension, it also displays real tire dimension which you can find in a store, if such exists.

See the same data - same inch tire sizes - grouped by the rim diameter.

See our other charts: Tire size chart, Tire speed rating, Load index, Tire conversion chart.

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