Does anyone know how much wider a 295-35-18 tire is in mm than a 275-35-18 tire?

 

sure, 20mm

 

LOL
thats a good one

 

 

Umm is this a trick question???

 

295mm - 275mm = 20mm

 

In standard layman's terms, it is about a little bigger than a penny. Here is a chart:

1mm 1/32 Inch
2mm 1/16 Inch
3mm 3/32 Inch
4mm 1/8 Inch
5mm 3/16 Inch
6mm Just under 1/4 Inch
7mm Just over 1/4 Inch
8mm 5/16 Inch
9mm Just under 3/8 Inch
10mm Just over 3/8 Inch
11mm 7/16 Inch
12mm Just under 1/2 Inch
13mm Just over 1/2 Inch
14mm 9/16 Inch
15mm Just under 5/8 Inch
16mm 5/8 Inch
17mm Just under 11/16 Inch
18mm Just under 3/4 Inch
19mm Just over 3/4 Inch
20mm Just under 13/16 Inch
21mm Just over 13/16 Inch
22mm Just under 7/8 Inch
23mm Just over 7/8 Inch
24mm 15/16 Inch
25mm 1 Inch

 

I think somebody must be snowed in?????? Nice effort, man.

 

It's supposed to be 20mm.

Tire sizes differ between manufacturers(Michelins 275 can be wider the Dunlops 295 for example).If installed on a wheel the width of the wheel can affect the width of the installed tire.