Photographic Paper Sizes

Name	in × in	mm × mm
2R	2.5 × 3.5	64 × 89
3R	3.5 × 5	89 × 127
4R	4 × 6	102 × 152
5R	5 × 7	127 × 178
6R	6 × 8	152 × 203
8R	8 × 10	203 × 254
S8R	8 × 12	203 × 305
11R	11 × 14	279 × 356