Square Root Calculator

Enter a number to instantly compute its square root.

Square Root Calculator

The Square Root Calculator is a fast, reliable, and easy-to-use online tool that helps you find the square root of any positive number instantly. Whether you are a student solving math problems, a teacher preparing lessons, or a professional needing precise calculations, this calculator offers accurate results with just a click.

This tool is perfect for anyone looking to simplify square root calculations without doing the math manually. It works for whole numbers, decimals, and even large values — making it useful for both basic arithmetic and advanced math problems.

🔢 What is a Square Root?

The square root of a number is a value that, when multiplied by itself, gives the original number.
For example:
√25 = 5, because 5 × 5 = 25
The square root symbol is √, and the operation is the opposite of squaring a number. Square roots are commonly used in geometry, algebra, physics, engineering, and many real-life applications like calculating area, distances, or analyzing data.

✍️ Example Calculation:

Square root of 144 = 12
Because: 12 × 12 = 144
Square root of 2.25 = 1.5
Because: 1.5 × 1.5 = 2.25

📚 Common Uses of Square Roots:

  • Solving quadratic equations
  • Finding the length of sides in right-angled triangles (Pythagorean theorem)
  • Calculating standard deviation in statistics
  • Determining area and dimensions in geometry
  • Engineering and physics problems involving distance or force