Square Number Calculator
Calculate x² with step-by-step solution, perfect square check, and nearby squares table.
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Why it's called a "square"
7 × 7 = 49 dotsFormulas
Square: x² = x × x
Inverse: √(x²) = |x|
- x²
- The number multiplied by itself.
- Perfect square
- A non-negative integer whose square root is an integer (1, 4, 9, 16, 25, …).
- √n
- The inverse — given n, finds the non-negative value whose square is n.
- |x|
- Absolute value — the magnitude of x ignoring its sign. Squaring always drops the sign.