Square Root Calculator
Quickly compute the square root of any non-negative number with our free online calculator, designed for students, teachers, engineers, and professionals.

Check It Yourself
About This Tool
The square root calculator is a simple yet powerful online tool designed to deliver instant calculations of the square root for any non-negative real number. Whether you're a student solving homework problems, an engineer verifying calculations, or a researcher analyzing data, this tool offers reliable results with just a few clicks.
Users input a number into the large, clear input box and press the 'Calculate' button. The system validates the input to ensure it is non-negative and numeric, providing helpful error messages if invalid data is detected. Once validated, the calculator instantly displays the square root with precision up to ten decimal places. Optional enhancements include toggling between decimal display and fractional approximation for integers, viewing calculation history, and switching between light and dark modes.
This tool is optimized for responsiveness, ensuring usability across desktops, tablets, and smartphones. It features an intuitive, minimal design with accessibility considerations such as high-contrast modes, keyboard navigation, and adjustable font sizes. Ideal for students, educators, scientists, engineers, and anyone needing quick, accurate square root calculations without complex software.
By simplifying the process and providing clear, immediate results, this calculator enhances learning, improves productivity, and supports precise scientific work.
How to Use
1. Enter a non-negative number into the input box.
2. Click the 'Calculate' button.
3. View the result displayed below instantly. You can copy or share the result, or reset to perform another calculation.

FAQs/Additional Resources
Find Quick Answers
What numbers can I input for square root calculation?
Does this calculator support fractional output?
Can I view my previous calculations?
Is this tool accessible for all users?
Will this work on mobile devices?
What happens if I input a negative number?
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