Please note that this is a guide only and sizes may vary from brand to brand.
 
Size Guide - Mens Pants & Shorts
 Waist (cm) Waist (inch) Inside Leg (cm )
     
Regular Fit (R)    
67 26 73-79
72 28 73-80
77 30 73-81
82 32 75-82
87 34 77-82
92 36 79-83
97 38 81-83
102 40 82-84
107 42 82-84
112 44 82-85
117 46 82-85
122 48 82-86
127 50 82-86
     
Stout Fit (S)    
87 34 72-78
92 36 74-79
97 38 76-79
102 40 78-80
107 42 80-80
112 44 80-81
117 46 80-81
122 48 80-82
127 50 80-82
132 52 80-83
137 54 80-83
142 56 80-83
147 58 80-83
152 60 80-83
     
Long Fit (L)    
74 26 79-83
79 28 81-84
84 30 83-86
89 32 85-87
94 34 87-88
99 36 89-90
104 38 90-91

 

Some info about this size guide.