NOTE: In the near future I may discoutinue some of the javascript calculators on this site. If you are interested in downloading a free border caculator go to http://www.fineart-photography.com/BorderCalc.html

Placing an Image Window at Absolute CenterTo calculate the borders needed to center a window on a mat enter the measurements in the table below. Those using inches will need to convert any fractions to decimals by using the "Fractions to Decimals" table. The results can be converted back into fractions by using the javascript converter. It will round to the nearest sixteenth of an inch which should be close enough for most purposes.

1/16 = .0625 | 5/16 = .3125 | 9/16 = .5625 | 13/16 = .8125 |

2/16 or 1/8 = .1250 | 6/16 or 3/8 = .3750 | 10/16 or 5/8 = .6250 | 14/16 or 7/8 = .8750 |

3/16 = .1875 | 7/16 = .4375 | 11/16 = .6875 | 15/16 = .9375 |

4/16 or 1/4 = .2500 | 8/16 or 1/2 = .5000 | 12/16 or 3/4 = .7500 |

Length of Mat | Width of Mat | ||

Length of Window | Width of Window | ||

Top & Bottom Border | |||

Side Borders | |||

Messages |

Decimal Fraction: would be: sixteenths

Matting Prints

Placing an
Image
Window at Optical Center

Download
an Excel File Containing this Calculator

All Text and Images © Joe Miller, 2004