Square Root Calculator
Calculate square roots and expressions with radicals, fractions, powers, constants, and scientific functions in a 2D math calculator.
Square root calculator with readable radical notation
Use this square root calculator when you want the radical bar to grow with the expression inside it.
It supports simple roots like sqrt(144), cube roots such as \sqrt[3]{8}, and larger expressions such as roots inside fractions or powers.
Features
- Square root input with a real radical layout.
- Cube-root and nth-root notation from LaTeX input.
- Roots combined with fractions, exponents, and constants.
- Keyboard shortcut support for sqrt.
- Friendly errors for invalid real-number root expressions.
Example expressions
\sqrt{144}\sqrt{1+3^2}\sqrt{\frac{9}{16}}\sqrt[3]{8}\sqrt[3]{-8}\frac{1+\sqrt{5}}{2}
How to use this calculator
- Type sqrt or choose the root button to insert a square root.
- Place the full expression inside the radical before calculating.
- Use \sqrt[3]{8} style notation when you need a cube root.
Common input mistakes
- sqrt(-1) is not a real-number result in this calculator.
- Use parentheses or a root template when the radicand has more than one term.
- An even root of a negative number is rejected, while an odd root such as \sqrt[3]{-8} is allowed.
FAQ
How do I type a square root?
Type sqrt or use the root button. The calculator inserts a 2D radical structure.
Can I put a fraction inside a square root?
Yes. Fractions, powers, and constants can be placed inside the root.
Does it support cube roots?
Yes. LaTeX-style nth roots such as \sqrt[3]{8} are converted to real-number nth-root calculations.
What happens with negative roots?
The calculator focuses on real-number results and shows an error for unsupported complex results.