CROWN MOLDING CALCULATOR Version 2.00

(for cornice moulding mitre gauge)

The calculated values will appear in the boxes in the table when the INTERPOLATE button is pressed. Use the fixed values in the table to figure out how the angles on your saw are defined. The compliment button will cause the compliment of the angle entered to be used. The predominant slope angle is 38 deg.

Input the wall angle and enter the angle of the molding from the wall at the bottom
_ Enter the angle measured _________ Then push the button corresponding to how you measured it in Degrees
Slope Angle from Wall in Degrees DEFAULT: 38
outside corner inside corner inward wall bend crosscut rake crosscut miter bevel overcut bevel included angle
360 0 180 90 0 90 0
315 45 135 56.0670 33.9320 46.7210 43.2780
270 90 90 31.6190 58.3810 33.8629 56.1371
225 135 45 14.3064 75.6936 17.5512 82.4488
181 179 1.0 0.307 89.7 0.396 89.6
180 180 0 0 90 0 90
135 225 -45 -14.3064 104.3064 -17.5512 107.5512
90 270 -90 -31.6190 121.6190 -33.8629 123.8629
45 315 -135 -56.0670 146.0670 -46.7210 136.7210
0 360 -180 -90 180 -90 180
Unused Independent Variable

outside: For outside corners lay a board against each wall and scribe a line on one board. Measure the angle from the wall to the other board edge and enter that number and then press the outside button.

90: Hold a board against one wall and hold a square or another board with a 90 degree corner against the other wall and scribe a line on the first board using the edge of the 90 degree board. Enter the angle between the wall and the edge of the second board and press the 90 button.

45 triangle: Hold a board against one wall and hold another board with a 45 degree corner against the other wall and scribe a line on the first board using the edge of the 90 degree board. Enter the angle between the wall and the edge of the second board and press the 45 button.

60 triangle: Hold a board against one wall and hold another board with a 60 degree corner against the other wall and scribe a line on the first board using the edge of the 90 degree board. Enter the angle between the wall and the edge of the second board and press the 60 triangle button.

included: The included angle includes all of the object between the two sides.

inside: The inside angle is pi minus the included angle. It is the angle between the walls.

interpolate: The angle that the wall bends, positive for inside. For outside corners lay a board against each wall and scribe a line on one board. Measure the angle from the wall to the other board edge and enter the negative of that number and then press interpolate.

compliment: Enter the compliment of the angle that the wall bends.


There is an illustration for svg enabled viewers, and for others, defining the angles.


...calculators with the concurrentinverse...
...table...
...example...
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