R Series

It is often used for photographic paper or photography, to print images of different sizes such as for postcards, and passport photos.

Size Dimension (inch) Dimension (mm)
2R 2.50 x 3.50 in 63.50 x 88.90 mm
3R 3.50 x 5.00 in 88.90 x 127.00 mm
4R 5.04 x 6.00 in 128.06 x 152.40 mm
5R 5.00 x 7.00 in 127.00 x 177.80 mm
6R 6.00 x 8.00 in 152.40 x 203.20 mm
8R 8.00 x 10.00 in 203.20 x 254.00 mm
S8R 8.00 x 12.00 in 203.20 x 304.80 mm
10R 10.00 x 12.00 in 254.00 x 304.80 mm

The dimensions are in the form of R which illustrates the shorter side of the image and it is measured in inches. For instance, the standard 4R size is 4 inches by 6 inches.

For 10 inches and below, one side is longer by 2 inches than the shorter side. For 11 inches and above, the longer side is 3 inches longer than the shorter side.

What is the image size of the photo?
Image size generally indicates the pixel dimensions of the image, which is also known as image resolution. Usually, you can find this by right-clicking on the photo and going to “Properties” on Windows or “Get Info” on Mac. Alternatively, you can also check the resolution details using our Photo Resolution Checker.

What are the photo sizes in cm?
2.54 cm is 1 inch. Generally, the standard photo sizes are in inches, but we have them converted into cm in our table.

What is a standard wallet size photo?
The size of a standard wallet photo is slightly larger than a credit card, which is about 2.5″ x 3.5″. It is also the size of a 2R print.