I need a picture to be 38mm X 50mm how do I figure this size in inches?

multiply 38 (1/25.4) and you have one width, then do the 50 with the same conversion factor. Remember that 2.54 cm is in one inch, so 25.4mm is in one inch.

To convert the size from millimeters to inches, you need to know that 1 inch is equal to 25.4 millimeters.

To calculate the size in inches, you can use the following formula:

Size in inches = Size in millimeters / 25.4

Let's calculate the size you mentioned, which is 38mm x 50mm:

For the width:
Size in inches = 38mm / 25.4 = 1.496 inches (rounded to three decimal places)

For the height:
Size in inches = 50mm / 25.4 = 1.969 inches (rounded to three decimal places)

Therefore, the size you need, 38mm x 50mm, is approximately 1.496 inches x 1.969 inches.