Before you start randomly cramming ornaments on your tree and covering every green spot in either tinsel, fake snow, or both . . . you should really listen to this.

A team of scientists at the University of Sheffield in England has figured out some mathematical formulas for the PERFECTLY DECORATED tree.

Follow these four formulas to give your tree the most visual appeal.

Yup. There's FORMULAS.

Number of ornaments. Figure out the height in inches, divide by two, and that's how many ornaments you want. So for a standard six-foot tree, which is 72 inches, you'd only want about 36 ornaments.

Amount of tinsel. Multiply the height by five, and that's how many inches of tinsel you want. So for a six-foot tree, five times 72 inches is 360. That's 360 inches of tinsel, or 30 feet.

Amount of lights. Multiply the height by three, and that's how many inches of lights you want. So for a six-foot tree, three times 72 is 216.  So you'd want 216 inches of lights, or about 18 feet.

Size of the star. Divide the height by 10, and that's how tall your star should be. So for a six-foot tree . . . divide 72 inches by 10 . . . and you want a star that's about seven inches tall. (Gizmodo)

You can also measure your tree in centimeters and plug it into their online calculator. Google "Treegonometry creates perfect Christmas tree."