Question 1

What is a square root?

Accepted Answer

The number that, when squared, equals x. √25 = 5 because 5² = 25. Written as √x or x^(1/2).

Question 2

How do I estimate square roots?

Accepted Answer

Find perfect squares around it. √50: between √49=7 and √64=8, closer to 7. √50 ≈ 7.07.

Question 3

How accurate are these calculations?

Accepted Answer

Our calculator uses double-precision floating-point arithmetic, accurate to about 15-16 significant digits for most calculations.

Question 4

Can I use the result in further calculations?

Accepted Answer

Yes, results are calculated to full precision. You can copy the exact value or use the rounded display depending on your needs.

Square Root Calculator - Free Online Tool

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