Square Calculator
Find the square (and cube) of any number, exactly.
Enter your values to see the result.
Processing and privacy
Processing varies by tool. Check the instructions for local processing, server requests, external services and any file or request limits before entering sensitive information.
Read the privacy policyHow this calculation works
Understand the method, inputs and limits behind your result.
- Formula
- Square = x² = x × x.
- Variables
- Number
- Units
- Use the units shown beside each input. Counts and ratios are dimensionless unless labeled otherwise.
- Example
- 12.5² = 12.5 × 12.5 = 156.25, and 12.5³ = 1,953.125.
- Assumptions
- The result follows the selected options and supplied inputs. Displayed values may be rounded; check input precision before using the result.
- Source
- ToolzHive calculation guide and calculator implementation. External reference verification is pending.
- Last reviewed
- Review date not yet recorded.
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Clear instructions
Find steps, examples and limitations below.
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How to use the Square Calculator
Squaring a number means multiplying it by itself. The square calculator does this exactly for any number, including decimals, negative numbers and very large values, and also shows the cube (the number multiplied by itself three times) and the result in scientific notation.
- 1 Enter a number.
- 2 Read its square, cube and scientific notation.
- 3 Use the square root calculator to go the other way.
Example and practical tips
12.5² = 12.5 × 12.5 = 156.25, and 12.5³ = 1,953.125.
Frequently asked questions
What is the square of a negative number?
It is always positive, because a negative times a negative is positive: (−4)² = 16.
Where are squares used?
In areas (a 5 m square room has 25 m² of floor), the Pythagorean theorem, statistics and physics formulas.
What is a perfect square?
A whole number that is the square of another whole number, such as 1, 4, 9, 16 and 25.
Practical guides
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How to Use Square Calculator
Find the square of any number exactly, including decimals and negative numbers, plus its cube and scientific notation. Free online square calculator.
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