Math calculator
Square Root Calculator
Calculate square root, square, and cube for a number.
Formula
Square root
Square root of x is the number y where y x y = x
The square root of 144 is 12 because 12 x 12 = 144.
FAQs
Can I calculate decimal square roots?+
Yes. Decimal inputs are supported.
What happens with negative numbers?+
This calculator returns 0 for negative square roots instead of complex numbers.
How does the Square Root Calculator calculate the result?+
It uses the Square root: Square root of x is the number y where y x y = x. The square root of 144 is 12 because 12 x 12 = 144.
What information do I need to use the Square Root Calculator?+
Calculate square root, square, and cube for a number.
How accurate is the Square Root Calculator?+
Square Root Calculator applies the formula and assumptions shown on this page. Results may be rounded for readability, so verify changing rates, thresholds, medical guidance, or legal rules with the cited source or a qualified professional.
What should I check before using the Square Root Calculator result?+
Check that the units, dates, rates, and assumptions match your situation. Change one input at a time to understand which values have the largest effect on the result.
Math guide
How to use the Square Root Calculator
Calculate square root, square, and cube for a number. The page also explains the square root and shows a practical example: The square root of 144 is 12 because 12 x 12 = 144.
- 1
Enter your details
Enter the values for the square root calculator scenario you want to check.
- 2
Check the calculation
Review the result alongside the square root: Square root of x is the number y where y x y = x.
- 3
Compare scenarios
Change one or more inputs to see how they affect the square Root Calculator result before you use the estimate.
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