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How to Find the Square Root of a Number

We can find the SQUARE ROOT of a number with either the SQRT function or the POWER function with the corresponding power argument (1/2). The steps below will walk through the process.

Figure 1: How to Find the Square Root of a Number


SQRT function: =SQRT(cell containing the number or the number)

POWER function: =POWER(cell containing the number or the number,1/2)

Setting up the Data

  • We will set up the data as shown in figure 2
  • The numbers whose square root we intend to find are in Cell A4 to Cell A10
  • The results will be returned in Column B

Figure 2: Setting up the Data

Find the Square Root of a Number

  • We will click on Cell B4
  • We will insert the formula below:
  • We will press the enter key to get the result


Figure 3: Square Root for the Value in Cell A4

  • We will use the fill handle to copy the formula into the other cells

Figure 4: Square Root of the Numbers in Column A


To use the POWER FUNCTION, enter the formula below into Cell B4 and repeat the process above.

Formula: =POWER(A4,1/2)

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