Formula
- Use the units shown beside each field.
- Results update automatically whenever you change an input.
- Displayed values use up to four decimal places, or scientific notation for very small or large numbers. Calculations use standard floating-point arithmetic; exact integer and fraction tools identify their own precision rules.
- Exact integer arithmetic, up to 100 digits. Zero is a perfect square. Floor root and bounding squares do not approximate with floating-point numbers.
Example Calculation
- Integer: 144
144=12². The next square is 169.
Frequently asked questions
How do I use this calculator?
Enter integer. The result updates automatically. Use Reset to restore the example values.
What method does it use?
An integer n is a perfect square if an integer k satisfies k²=n. Use integer binary search.. Exact integer arithmetic, up to 100 digits. Zero is a perfect square. Floor root and bounding squares do not approximate with floating-point numbers.
Why might a rounded result differ?
The calculation keeps full numeric precision internally, then rounds the displayed result. Rounding intermediate steps by hand can produce a slightly different answer.
Are my inputs saved online?
No. This calculator processes your inputs in your browser. A recently used list stores only calculator names on this device, not your entered values.
Check the assumptions and units before using this result. Read about calculation methods.