How to Calculate the Cube Root

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Finding the cube root of a number means determining a number that when multiplied by itself three times gives you your original number. For example, the cube root of 8 is 2 since 2 x 2 x 2 = 8. The square root is more common in lower level math like geometry and beginner calculus; the cube root begins appearing in advanced calculus and beyond. Learning how to calculate simple cube roots such as 8 and 27 will pave the way for solving more challenging cube root numbers. With the invention of advanced calculators, math enthusiasts, students and mathematicians can calculate cube roots for any number using the simple push of a button.

    Find the "y [root symbol] x" button on your advanced calculator. This button makes finding the cube root of any number quick and easily.

    Insert the number 3 to indicate to the calculator you want to take the cube root.

    Press the "y [root symbol] x," followed by the number you want to find the cube root of. For example:

    (3) (y [root symbol] x) (27) = ?

    Press "Enter" on your calculator and generate the answer. (3) (y [root symbol] x) (27) = 3

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About the Author

Paul Lin has been writing professionally since 2010. He has written scripts for the National Science Foundation and short films that have won awards at film festivals. His knowledge of broad topics along with visual scriptwriting allows him to write articles that brings words to life. Lin holds a Bachelor of Arts in scriptwriting from the University of North Texas.

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