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Tyre Size Conversion Chart
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Author:  Aaron [ Sun Jan 29, 2012 4:56 pm ]
Post subject:  Tyre Size Conversion Chart

Metric to Imperial tire conversion chart
Metric = Imperial Metric = Imperial Metric = Imperial
215/75/15 27.7"x 8.5" .. 245/75/16 30.5"x 9.6" .. 315/70/17 34.9"x 12.9"
225/70/15 27.4"x 8.9" .. 255/70/16 30.0"x 10.0" .. 275/65/18 32.1"x 11.0"
225/75/15 28.3"x 8.9" .. 265/70/16 30.6"x 10.4" .. 375/50/18 33.0"x 15.4"
235/75/15 29.0"x 9.3" .. 265/75/16 31.6"x 10.4" .. 325/60/18 33.2"x 13.3"
245/75/15 29.5"x 9.6" .. 275/70/16 31.2"x 10.8" .. 325/65/18 34.8"x 13.5"

255/75/15 30.0"x 10.0" .. 285/75/16 32.8"x 11.2" .. 305/70/18 35.0"x 12.2"
265/75/15 30.6"x 10.4" .. 295/75/16 33.4"x 11.6" .. 375/60/18 35.7"x 15.5"
205/85/16 29.7"x 8.1" .. 305/70/16 33.0"x 12.2" .. 395/65/18 37.8"x 15.7"
215/75/16 28.7"x 8.5" .. 315/75/16 34.8"x 12.9" .. 325/50/20 33.0"x 13.2"

225/70/16 28.4"x 8.9" .. 375/55/16 32.8"x 15.5"
225/75/16 29.2"x 8.9" .. 395/70/16 37.9"x 16.0"

235/70/16 29.0"x 9.3" .. 245/70/17 30.6"x 9.8"
235/85/16 31.7"x 9.3" .. 265/70/17 31.6"x 10.7"
245/70/16 29.5"x 9.6" .. 285/70/17 33.0"x 11.5"

should solve a few debates around the place :lol:
(maybe good tech this so it doesnt get lost?)

Author:  wolf_rt [ Sun Jan 29, 2012 11:19 pm ]
Post subject:  Re: Tyre Size Conversion Chart

Hope you dont mind, i sorted your list by rim size then rolling diameter:

225/70/15 = 27.4"x 8.9"
215/75/15 = 27.7"x 8.5"
225/75/15 = 28.3"x 8.9"
235/75/15 = 29.0"x 9.3"
245/75/15 = 29.5"x 9.6"
255/75/15 = 30.0"x 10.0"
265/75/15 = 30.6"x 10.4"

225/70/16 = 28.4"x 8.9"
215/75/16 = 28.7"x 8.5"
235/70/16 = 29.0"x 9.3"
225/75/16 = 29.2"x 8.9"
245/70/16 = 29.5"x 9.6"
205/85/16 = 29.7"x 8.1"
255/70/16 = 30.0"x 10.0"
245/75/16 = 30.5"x 9.6"
265/70/16 = 30.6"x 10.4"
275/70/16 = 31.2"x 10.8"
265/75/16 = 31.6"x 10.4"
235/85/16 = 31.7"x 9.3"
285/75/16 = 32.8"x 11.2"
375/55/16 = 32.8"x 15.5"
305/70/16 = 33.0"x 12.2"
295/75/16 = 33.4"x 11.6"
315/75/16 = 34.8"x 12.9"
395/70/16 = 37.9"x 16.0"

245/70/17 = 30.6"x 9.8"
265/70/17 = 31.6"x 10.7"
285/70/17 = 33.0"x 11.5"
315/70/17 = 34.9"x 12.9"

275/65/18 = 32.1"x 11.0"
375/50/18 = 33.0"x 15.4"
325/60/18 = 33.2"x 13.3"
325/65/18 = 34.8"x 13.5"
305/70/18 = 35.0"x 12.2"
375/60/18 = 35.7"x 15.5"
395/65/18 = 37.8"x 15.7"

325/50/20 = 33.0"x 13.2"

Author:  MacDaddy [ Mon Jan 30, 2012 1:01 am ]
Post subject:  Re: Tyre Size Conversion Chart

Aaron wrote:
Metric to Imperial tire conversion chart

should solve a few debates around the place :lol:
(maybe good tech this so it doesnt get lost?)


Thanks for that Aaron, good info ! 8)

wolf_rt wrote:
Hope you dont mind, i sorted your list by rim size then rolling diameter:


It does make it a bit better to read like this, so i am sure he wont mind... thanks wolf... :D

Author:  IN2DEP [ Mon Jan 30, 2012 5:07 pm ]
Post subject:  Re: Tyre Size Conversion Chart

So wheres the 31" in 15" rims or 32" on 15" lol there the ones i want to know lol

Author:  JrZook [ Mon Jan 30, 2012 5:12 pm ]
Post subject:  Re: Tyre Size Conversion Chart

IN2DEP wrote:
So wheres the 31" in 15" rims or 32" on 15" lol there the ones i want to know lol


31" = 31"
32" = 32"

:wink:

Author:  Gwagensteve [ Mon Jan 30, 2012 5:16 pm ]
Post subject:  Re: Tyre Size Conversion Chart

IN2DEP wrote:
So wheres the 31" in 15" rims or 32" on 15" lol there the ones i want to know lol


They don't exist. As you can see, over 265/75/15 (which is 31X10.5 in imperial) you have to swap to imperial sizing, or 16" rims.

Steve.

Author:  IN2DEP [ Mon Jan 30, 2012 5:26 pm ]
Post subject:  Re: Tyre Size Conversion Chart

Gwagensteve wrote:
IN2DEP wrote:
So wheres the 31" in 15" rims or 32" on 15" lol there the ones i want to know lol


They don't exist. As you can see, over 265/75/15 (which is 31X10.5 in imperial) you have to swap to imperial sizing, or 16" rims.

Steve.


i see i see ;)

Author:  303zuke [ Mon Jan 30, 2012 8:24 pm ]
Post subject:  Re: Tyre Size Conversion Chart

Hope you dont mind, I added some old school sizes:

225/70/15 = 27.4"x 8.9"
215/75/15 = 27.7"x 8.5"
225/75/15 = 28.3"x 8.9"
235/75/15 = 29.0"x 9.3"
245/75/15 = 29.5"x 9.6"
255/75/15 = 30.0"x 10.0"
265/75/15 = 30.6"x 10.4"

6.00-16 = 155/100/16 = 28.4"x6.0"
225/70/16 = 28.4"x 8.9"
215/75/16 = 28.7"x 8.5"
235/70/16 = 29.0"x 9.3"
225/75/16 = 29.2"x 8.9"
245/70/16 = 29.5"x 9.6"
205/85/16 = 29.7"x 8.1"
6.50-16 = 165/100/16 = 29.8"x6.5"
255/70/16 = 30.0"x 10.0"
7.00-16 = 175/100/16 = 30.5"x7.0"
245/75/16 = 30.5"x 9.6"
265/70/16 = 30.6"x 10.4"
275/70/16 = 31.2"x 10.8"
265/75/16 = 31.6"x 10.4"
235/85/16 = 31.7"x 9.3"
7.50-16 = 190/100/16 = 31.9"x7.5"
285/75/16 = 32.8"x 11.2"
375/55/16 = 32.8"x 15.5"
305/70/16 = 33.0"x 12.2"
295/75/16 = 33.4"x 11.6"
315/75/16 = 34.8"x 12.9"
395/70/16 = 37.9"x 16.0"

245/70/17 = 30.6"x 9.8"
265/70/17 = 31.6"x 10.7"
285/70/17 = 33.0"x 11.5"
315/70/17 = 34.9"x 12.9"

275/65/18 = 32.1"x 11.0"
375/50/18 = 33.0"x 15.4"
325/60/18 = 33.2"x 13.3"
325/65/18 = 34.8"x 13.5"
305/70/18 = 35.0"x 12.2"
375/60/18 = 35.7"x 15.5"
395/65/18 = 37.8"x 15.7"

325/50/20 = 33.0"x 13.2"

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