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)
22.0X8.0R13.0203/56R13.013
22.0X8.0R15.0203/44R15.015
22.5X4.5R15.0114/83R15.015

Tire size conversion chart for the overall diameter: 24"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
24.0X4.5R15.0114/100R15.015
24.0X5.0R15.0127/90R15.015
24.5X8.0R13.0203/72R13.013
24.5X9.0R13.0229/64R13.013
24.5X8.0R15.0203/59R15.015

Tire size conversion chart for the overall diameter: 26"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
26.0X8.5R14.0216/71R14.014
26.0X6.0R15.0152/92R15.015
26.0X7.5R15.0191/73R15.015
26.0X8.0R15.0203/69R15.015
26.0X8.5R15.0216/65R15.015
26.0X10.0R15.0254/55R15.015
26.0X10.5R15.0267/52R15.015
26.0X11.5R15.0292/48R15.015
26.0X11.5R16.0292/43R16.016
26.0X11.5R17.0292/39R17.017
26.0X12.0R18.0305/33R18.018

Tire size conversion chart for the overall diameter: 27"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
27.0X9.5R14.0241/68R14.014
27.0X9.5R15.0241/63R15.015
27.0X10.5R15.0267/57R15.015
27.5X4.5R15.0114/139R15.015

Tire size conversion chart for the overall diameter: 28"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
28.0X8.5R14.0216/82R14.014
28.0X4.5R15.0114/144R15.015
28.0X7.5R15.0191/87R15.015
28.0X9.0R15.0229/72R15.015
28.0X10.5R15.0267/62R15.015
28.0X11.5R15.0292/57R15.015
28.0X12.5R15.0318/52R15.015
28.0X13.5R15.0343/48R15.015
28.0X11.5R16.0292/52R16.016

Tire size conversion chart for the overall diameter: 29"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
29.0X4.5R15.0114/156R15.015
29.0X8.5R15.0216/82R15.015
29.0X10.5R15.0267/67R15.015
29.0X11.5R15.0292/61R15.015
29.0X12.5R15.0318/56R15.015
29.0X15.5R15.0394/45R15.015
29.0X18.0R15.0457/39R15.015
29.0X18.5R15.0470/38R15.015
29.5X9.0R15.0229/81R15.015
29.5X11.5R15.0292/63R15.015
29.5X13.5R15.0343/54R15.015

Tire size conversion chart for the overall diameter: 30"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
30.0X7.0R15.0178/107R15.015
30.0X9.0R15.0229/83R15.015
30.0X9.5R15.0241/79R15.015
30.0X10.5R15.0267/71R15.015
30.0X11.5R15.0292/65R15.015
30.0X12.5R15.0318/60R15.015
30.0X13.5R15.0343/56R15.015
30.0X11.5R16.0292/61R16.016

Tire size conversion chart for the overall diameter: 31"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
31.0X9.5R15.0241/84R15.015
31.0X10.5R15.0267/76R15.015
31.0X11.0R15.0279/73R15.015
31.0X11.5R15.0292/70R15.015
31.0X12.5R15.0318/64R15.015
31.0X13.0R15.0330/62R15.015
31.0X13.5R15.0343/59R15.015
31.0X14.5R15.0368/55R15.015
31.0X16.5R15.0419/48R15.015
31.0X18.0R15.0457/44R15.015
31.0X18.5R15.0470/43R15.015
31.0X10.5R16.0267/71R16.016
31.0X11.0R16.0279/68R16.016
31.0X11.5R16.0292/65R16.016
31.0X12.5R16.0318/60R16.016
31.0X10.5R17.0267/67R17.017
31.0X18.0R20.0457/31R20.020

Tire size conversion chart for the overall diameter: 32"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
32.0X9.5R15.0241/89R15.015
32.0X10.5R15.0267/81R15.015
32.0X11.5R15.0292/74R15.015
32.0X14.0R15.0356/61R15.015
32.0X16.0R15.0406/53R15.015
32.0X17.5R15.0445/49R15.015
32.0X18.5R15.0470/46R15.015
32.0X9.0R16.0229/89R16.016
32.0X9.5R16.0241/84R16.016
32.0X10.0R16.0254/80R16.016
32.0X10.5R16.0267/76R16.016
32.0X11.5R16.0292/70R16.016
32.0X10.5R17.0267/71R17.017
32.0X11.5R17.0292/65R17.017

Tire size conversion chart for the overall diameter: 33"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
33.0X9.0R15.0229/100R15.015
33.0X9.5R15.0241/95R15.015
33.0X10.5R15.0267/86R15.015
33.0X11.5R15.0292/78R15.015
33.0X12.5R15.0318/72R15.015
33.0X13.0R15.0330/69R15.015
33.0X13.5R15.0343/67R15.015
33.0X14.0R15.0356/64R15.015
33.0X14.5R15.0368/62R15.015
33.0X15.5R15.0394/58R15.015
33.0X16.5R15.0419/55R15.015
33.0X19.5R15.0495/46R15.015
33.0X21.5R15.0546/42R15.015
33.0X10.5R16.0267/81R16.016
33.0X11.5R16.0292/74R16.016
33.0X12.5R16.0318/68R16.016
33.0X13.0R16.0330/65R16.016
33.0X13.5R16.0343/63R16.016
33.0X14.0R16.0356/61R16.016
33.0X14.5R16.0368/59R16.016
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
33.0X10.5R17.0267/76R17.017
33.0X12.5R17.0318/64R17.017
33.0X13.0R17.0330/62R17.017
33.0X13.5R17.0343/59R17.017
33.0X11.5R18.0292/65R18.018
33.0X12.5R18.0318/60R18.018
33.0X13.5R18.0343/56R18.018
33.0X12.5R20.0318/52R20.020
33.0X13.5R20.0343/48R20.020
33.0X12.5R22.0318/44R22.022
33.5X16.5R16.0419/53R16.016

Tire size conversion chart for the overall diameter: 34"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
34.0X9.5R15.0241/100R15.015
34.0X10.5R15.0267/90R15.015
34.0X12.5R15.0318/76R15.015
34.0X9.0R16.0229/100R16.016
34.0X10.5R16.0267/86R16.016
34.0X12.5R16.0318/72R16.016
34.0X13.5R16.0343/67R16.016
34.0X9.5R16.5241/92R16.516.5
34.0X10.5R17.0267/81R17.017
34.5X17.0R16.0432/54R16.016

Tire size conversion chart for the overall diameter: 35"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
35.0X10.5R15.0267/95R15.015
35.0X12.5R15.0318/80R15.015
35.0X13.5R15.0343/74R15.015
35.0X14.5R15.0368/69R15.015
35.0X15.0R15.0381/67R15.015
35.0X15.5R15.0394/65R15.015
35.0X16.0R15.0406/63R15.015
35.0X10.5R16.0267/90R16.016
35.0X12.5R16.0318/76R16.016
35.0X14.5R16.0368/66R16.016
35.0X15.0R16.0381/63R16.016
35.0X16.0R16.0406/59R16.016
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
35.0X10.5R17.0267/86R17.017
35.0X12.5R17.0318/72R17.017
35.0X14.5R17.0368/62R17.017
35.0X12.5R18.0318/68R18.018
35.0X13.5R18.0343/63R18.018
35.0X14.5R18.0368/59R18.018
35.0X12.5R20.0318/60R20.020
35.0X13.5R20.0343/56R20.020
35.0X14.5R20.0368/52R20.020
35.0X12.5R22.0318/52R22.022
35.0X14.5R22.0368/45R22.022

Tire size conversion chart for the overall diameter: 36"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
36.0X12.5R15.0318/84R15.015
36.0X13.5R15.0343/78R15.015
36.0X14.5R15.0368/72R15.015
36.0X12.5R16.0318/80R16.016
36.0X13.0R16.0330/77R16.016
36.0X13.5R16.0343/74R16.016
36.0X14.5R16.0368/69R16.016
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
36.0X12.5R17.0318/76R17.017
36.0X13.5R17.0343/70R17.017
36.0X13.5R18.0343/67R18.018
36.0X13.5R20.0343/59R20.020
36.0X15.5R20.0394/52R20.020

Tire size conversion chart for the overall diameter: 37"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
37.0X12.5R15.0318/88R15.015
37.0X13.0R15.0330/85R15.015
37.0X13.5R15.0343/81R15.015
37.0X14.0R15.0356/79R15.015
37.0X14.5R15.0368/76R15.015
37.0X12.5R16.0318/84R16.016
37.0X13.0R16.0330/81R16.016
37.0X13.5R16.0343/78R16.016
37.0X14.0R16.0356/75R16.016
37.0X14.5R16.0368/72R16.016
37.0X12.5R16.5318/82R16.516.5
37.0X13.0R16.5330/79R16.516.5
37.0X14.0R16.5356/73R16.516.5
37.0X12.5R17.0318/80R17.017
37.0X13.0R17.0330/77R17.017
37.0X13.5R17.0343/74R17.017
37.0X14.0R17.0356/71R17.017
37.0X12.5R18.0318/76R18.018
37.0X13.5R18.0343/70R18.018
37.0X12.5R20.0318/68R20.020
37.0X13.5R20.0343/63R20.020
37.0X13.5R22.0343/56R22.022
37.0X13.5R24.0343/48R24.024

Tire size conversion chart for the overall diameter: 38"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
38.0X12.5R15.0318/92R15.015
38.0X13.0R15.0330/88R15.015
38.0X14.5R15.0368/79R15.015
38.0X15.5R15.0394/74R15.015
38.0X13.0R16.0330/85R16.016
38.0X14.5R16.0368/76R16.016
38.0X15.5R16.0394/71R16.016
38.0X11.0R16.5279/98R16.516.5
38.0X12.5R16.5318/86R16.516.5
38.0X15.5R16.5394/69R16.516.5
38.0X13.5R17.0343/78R17.017
38.0X14.5R17.0368/72R17.017
38.0X15.5R17.0394/68R17.017
38.0X13.5R18.0343/74R18.018
38.0X14.5R18.0368/69R18.018
38.0X15.0R18.0381/67R18.018
38.0X15.5R18.0394/65R18.018
38.0X13.5R20.0343/67R20.020
38.0X14.5R20.0368/62R20.020
38.0X15.5R20.0394/58R20.020
38.0X13.5R24.0343/52R24.024
38.0X14.0R24.0356/50R24.024
38.5X11.0R15.0279/107R15.015
38.5X13.5R15.0343/87R15.015
38.5X14.5R15.0368/81R15.015
38.5X15.0R15.0381/78R15.015
38.5X16.0R15.0406/73R15.015
38.5X11.0R16.0279/102R16.016
38.5X13.5R16.0343/83R16.016
38.5X14.5R16.0368/78R16.016
38.5X15.0R16.0381/75R16.016
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
38.5X13.5R17.0343/80R17.017
38.5X14.5R17.0368/74R17.017
38.5X14.5R18.0368/71R18.018
38.5X13.5R20.0343/69R20.020
38.5X14.5R20.0368/64R20.020

Tire size conversion chart for the overall diameter: 39"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
39.0X13.5R15.0343/89R15.015
39.0X13.5R16.0343/85R16.016
39.0X13.5R16.5343/83R16.516.5
39.0X13.5R17.0343/81R17.017
39.0X13.5R20.0343/70R20.020
39.5X13.5R15.0343/91R15.015
39.5X15.0R15.0381/82R15.015
39.5X18.0R15.0457/68R15.015
39.5X13.5R16.0343/87R16.016
39.5X15.0R16.0381/78R16.016
39.5X13.5R16.5343/85R16.516.5
39.5X15.0R16.5381/77R16.516.5
39.5X18.0R16.5457/64R16.516.5
39.5X13.5R17.0343/83R17.017
39.5X15.0R17.0381/75R17.017
39.5X13.5R20.0343/72R20.020
39.5X15.0R20.0381/65R20.020

Tire size conversion chart for the overall diameter: 40"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
40.0X16.0R15.0406/78R15.015
40.0X16.0R16.0406/75R16.016
40.0X13.5R17.0343/85R17.017
40.0X14.5R17.0368/79R17.017
40.0X16.0R17.0406/72R17.017
40.0X13.5R18.0343/81R18.018
40.0X14.5R18.0368/76R18.018
40.0X14.5R20.0368/69R20.020
40.0X15.5R20.0394/65R20.020
40.0X14.5R22.0368/62R22.022
40.0X15.5R22.0394/58R22.022
40.0X14.5R24.0368/55R24.024

Tire size conversion chart for the overall diameter: 41"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
41.0X14.5R16.0368/86R16.016
41.0X14.5R17.0368/83R17.017
41.0X14.5R18.0368/79R18.018
41.0X14.5R20.0368/72R20.020
41.0X14.5R22.0368/66R22.022

Tire size conversion chart for the overall diameter: 42"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
42.0X14.0R15.0356/96R15.015
42.0X15.0R15.0381/90R15.015
42.0X14.0R16.0356/93R16.016
42.0X15.0R16.0381/87R16.016
42.0X14.0R16.5356/91R16.516.5
42.0X15.0R16.5381/85R16.516.5
42.0X14.0R17.0356/89R17.017
42.0X14.5R17.0368/86R17.017
42.0X15.0R17.0381/83R17.017
42.0X14.5R20.0368/76R20.020
42.0X15.0R20.0381/73R20.020
42.5X13.5R15.0343/102R15.015
42.5X13.5R16.0343/98R16.016
42.5X13.5R16.5343/96R16.516.5
42.5X13.5R17.0343/94R17.017
42.5X13.5R20.0343/83R20.020
42.5X13.5R22.0343/76R22.022

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
43.0X14.5R17.0368/90R17.017
43.0X14.5R20.0368/79R20.020

Tire size conversion chart for the overall diameter: 44"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
44.0X18.5R15.0470/78R15.015
44.0X19.5R15.0495/74R15.015
44.0X21.0R15.0533/69R15.015
44.0X19.5R16.0495/72R16.016
44.0X21.0R16.0533/67R16.016
44.0X18.5R16.5470/74R16.516.5
44.0X19.5R16.5495/71R16.516.5
44.0X21.0R16.5533/65R16.516.5
44.0X19.5R17.0495/69R17.017
44.0X21.0R17.0533/64R17.017
44.0X19.5R20.0495/62R20.020
44.0X21.0R20.0533/57R20.020

Tire size conversion chart for the overall diameter: 46"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
46.0X19.5R16.0495/77R16.016
46.0X19.5R20.0495/67R20.020

Tire size conversion chart for the overall diameter: 47"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
47.0X17.0R15.0432/94R15.015
47.0X17.0R16.5432/90R16.516.5
47.0X17.0R17.0432/88R17.017

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
49.0X21.0R17.0533/76R17.017
49.0X21.0R20.0533/69R20.020

Tire size conversion chart for the overall diameter: 54"

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Tire Size Designation (inch) Tire Size Designation (metric) RD (in)
54.0X19.5R17.0495/95R17.017
54.0X19.5R20.0495/87R20.020

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.

Disclaimer:
Please note that the chart data should be verified with the tire/wheel manufacturer. This is for informative purposes only. The tyresizecalculator.com is not responsible for any errors that may arise with its usage.

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

See our other charts: Tire width for rim width chart, Rim width range and Measuring rim width for tire size chart, Tire size chart, Tire speed rating, Load index, Tire conversion chart.

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