Square Root Calculator
Your entries are calculated in this browser and are not saved by this tool.
How the Square Root Calculator works
Calculate a square root or a general nth root with domain validation. Enter the requested values in the tool above, select Calculate, and review both the main result and its breakdown.
Formula used
nth root = number^(1/n). Negative numbers have a real result only for odd integer roots.
Worked example
The square root of 144 is 12; the cube root of −8 is −2.
Practical uses
- Find square roots
- Evaluate cube and nth roots
- Check root domains
Assumptions and limits
Results depend on the supplied values and displayed rounding. For reproducibility, record the inputs and assumptions used when sharing a result.
Frequently asked questions
Is this calculator free?
Yes. It can be used without creating an account.
Are the values I enter stored?
The calculation runs in your browser. The core tool does not submit your calculator entries to WordPress.
Can I rely on the result for a major decision?
Use it as an educational estimate, verify important inputs, and seek qualified advice when the decision carries financial, medical, tax or legal consequences.