Calculate the square root of a number.
12
Result = number^(1/2). Even roots of negative numbers are not real numbers.
Need a different root degree? Use the full nth root calculator.
Square Root Calculator formula
This page calculates the square root of a number. Type the number and the result updates immediately.
square root = number^(1/2). For odd roots, negative inputs have real negative results. For even roots, negative inputs are outside the real-number result set.