Pot Drop Calculator

Enter any two of the values below,
select your glass, and click "Go!"

You can select the unit of measure for your results. For example, if you want to know how much glass in ounces you need for a 5 mm thick pot drop that is 12 inches across, enter 12 inches for the size, 5 mm for the thickness, and set the weight units to ounces.

Size

This calculator assumes your pot drop will be a circle. You can specify the target size by diameter (distance across the middle of the circle) or by circumference (distance around the circle).

Thickness

Most glass will usually try to be about 5 mm thick when left to its own under full fuse temperatures. Thicker pieces can be achieved by damming the glass.

Weight

Probably the most useful scenario for this tool is determining the amount of glass needed for a desired size pot drop. When solving for weight, you can still set the unit of measure (grams or ounces) and your results will be displayed in that unit.

Glass

Soda-lime glass includes most popular art glasses including Bullseye, Spectrum, Uroboros and float. If you aren't sure what kind of glass you have it is probably soda-lime.