The calculator adds the supplied image or art and window mat dimensions and calculates the correct overall or finished moulding cutting sizes in millimitres.
Photograph to mat size ratio.
This ratio also known as the golden section golden mean golden number divine proportion divine section etc has been known since antiquity.
Leaving the size at around 3mm makes the picture frame a little larger than the art or window mat being framed.
Some common 1 1 ratios are an 8 x 8 inch photo a 1080 x 1080 pixel image or typically any profile picture template on social media sites think facebook.
Whenever possible avoid pairing a mat with a frame the same size or larger.
Off the shelf pre cut picture frames usually have mat boards with openings that are half an inch smaller than the intended picture size.
The most common size for a photo is 4r or 4 inches by 6 inches typically because it s not too small and not too big.
Perhaps more important than the photograph to frame ratio is the frame to mat ratio.
As a general rule your mat should always be 1 5 times as wide as your frame or wider.
There are many types of frames available for that size.
If the mat is smaller than the frame you run the risk of the artwork appearing stuffed into the.
The majority seem to choose the middle window mat ratio of 1 64.
This clearance makes the assembly process much easier when fitting up picture frames.
A 1 1 ratio means that an image s width and height are equal creating a square.