Calculate the exact principal square root of any non-negative integer, decimal, or fraction.
Summary statement and numerical radical properties.
Square Root & Radical Calculator. Calculate principal square roots (√x), radical simplifications, and evaluate perfect and non-perfect squares. ZechKit provides this tool completely free and online, optimized for instant, accurate computations directly inside your web browser.
A Square Root Calculator finds the non-negative principal value (y) that, when multiplied by itself, produces the original number (x): y = √x such that y² = x.
Perfect vs. Non-Perfect Squares: Perfect squares (0, 1, 4, 9, 16, 25, 36, 49, 64, 81, 100...) yield whole integer roots. Non-perfect squares yield infinite, non-repeating irrational decimals (e.g. √2 ≈ 1.41421356...).
Radical Properties: Product Property: √(a × b) = √a × √b. Quotient Property: √(a / b) = √a / √b.
Geometric Significance: The square root represents the side length of a square with a known area, and is central to the Pythagorean theorem (c = √(a² + b²)) and distance formulas.