Square Root Calculator

Free square root calculator. Find the exact or decimal square root of any positive number, plus cube roots and nth roots. Use our free calculator now.

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Result hesaplanacak
Verification hesaplanacak
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Is Perfect Square? hesaplanacak

What Is a Square Root?

The square root of a number x is a value y such that y x y = x. It is the inverse operation of squaring a number. For example, the square root of 25 is 5 because 5 x 5 = 25.

Perfect vs Imperfect Squares

  • Perfect squares: 1, 4, 9, 16, 25, 36, 49, 64, 81, 100 — have whole number square roots
  • Imperfect squares: All other positive numbers — have irrational square roots (infinite non-repeating decimals)

Square Root Table (Common Values)

NumberSquare Root
21.4142
31.7321
52.2361
103.1623
507.0711
10010.0000

Applications

  • Geometry: Finding diagonal of a square (d = side x sqrt(2))
  • Pythagorean theorem: c = sqrt(a2 + b2)
  • Statistics: Standard deviation = sqrt(variance)
  • Physics: Speed from kinetic energy, pendulum period
  • Finance: Volatility calculations

How to Use This Calculator

Using our calculator is simple: enter the required values into the input fields and click the calculate button. Results are displayed instantly on screen. You can adjust the values and recalculate to compare different scenarios and find the best option for your situation.

Frequently Asked Questions

QuestionAnswer
How accurate are the results?We use standard formulas and up-to-date 2025 rates. Individual circumstances may vary slightly.
Is this calculator free?Yes, completely free and no registration required.
What should I do for exact figures?For precise information, consult a relevant professional or official authority.
Does it work on mobile devices?Yes, it works seamlessly on all devices and screen sizes.

Important Notes

This calculator is provided for informational purposes only. For legal, financial, or medical decisions, always seek advice from qualified professionals. Calculation results do not constitute official documents. Legislative changes may affect results; please visit the relevant official website for the most up-to-date information. Our calculators are regularly updated to reflect current regulations and rates.

Related Calculators

Check out our other related calculators on the homepage for similar financial and practical calculations. Using multiple tools together helps you make better-informed decisions. Browse our category pages to discover all available calculators organized by topic.

How to Use This Calculator

Using our calculator is simple: enter the required values into the input fields and click the calculate button. Results are displayed instantly on screen. You can adjust the values and recalculate to compare different scenarios and find the best option for your situation.

Frequently Asked Questions

QuestionAnswer
How accurate are the results?We use standard formulas and up-to-date 2025 rates. Individual circumstances may vary slightly.
Is this calculator free?Yes, completely free and no registration required.
What should I do for exact figures?For precise information, consult a relevant professional or official authority.
Does it work on mobile devices?Yes, it works seamlessly on all devices and screen sizes.

Important Notes

This calculator is provided for informational purposes only. For legal, financial, or medical decisions, always seek advice from qualified professionals. Calculation results do not constitute official documents. Legislative changes may affect results; please visit the relevant official website for the most up-to-date information. Our calculators are regularly updated to reflect current regulations and rates.

Related Calculators

Check out our other related calculators on the homepage for similar financial and practical calculations. Using multiple tools together helps you make better-informed decisions. Browse our category pages to discover all available calculators organized by topic.

Related Calculators

Frequently Asked Questions

A perfect square is an integer whose square root is also an integer. Examples: 1, 4, 9, 16, 25, 36, 49, 64, 81, 100.
Use the long division method or Newton's method: guess a value, divide the number by the guess, average the guess and result, repeat until precise enough.
The square root of 2 is approximately 1.41421356... It is irrational — its decimal representation never ends or repeats.