Question 1

What is a perfect square?

Accepted Answer

A perfect square is a number whose square root is a whole number, like 4, 9, 16, 25.

Question 2

Can I calculate square root of negative numbers?

Accepted Answer

No, the square root of negative numbers is undefined in real numbers.

Question 3

Is this tool free?

Accepted Answer

Yes, this tool is completely free and works directly in your browser.

Square Root Calculator

Perfect Squares