DTP Multicalc calculates picas, points, inches, millimeters and fractional inches.
You can add, subtract, multiply or divide in any field you like. You can copy the result from each field to the clipboard through the contextual menu. Or you can select the whole tape and copy it with the copy menu command. You can save or print the tape. You can change the colors of the window and the active field.
DTP Multicalc 2.0
OS X 10.7 or later