Square Root Calculator
Calculate the square root of any non-negative number. Get detailed results including the principal root, simplified radical form, and perfect square detection.
Square Root Calculator
Calculate the square root of any non-negative number. Get detailed results including the principal root, simplified radical form, and perfect square detection.
√
Max 14 digits
decimal places
What is a Square Root?
The square root of a number is a value that, when multiplied by itself, equals the original number. Every positive number has two square roots: a positive one and a negative one. However, the radical symbol (√) specifically refers to the principal square root, which is the non-negative value. For example, while both 3 and -3 are square roots of 9, we write √9 = 3.
Examples
(perfect square)
(perfect square)
(irrational)
(simplified)
Tips for Using the Calculator
- •Enter any non-negative number (integers or decimals).
- •Perfect squares (e.g., 1, 4, 9, 16) result in whole numbers.
- •Non-perfect squares result in irrational numbers (infinite non-repeating decimals).
- •Adjust the precision (1-20 decimal places) to control the accuracy of the result.
- •Use the 'Show ± roots' option to see both positive and negative solutions.
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