Square Calculator: Easily Compute m² for Any Number with Optional Units

Square Calculator multiplies any real number by itself, then appends the squared unit you choose—meters, centimeters, feet or inches. Four-decimal precision meets common building-plan tolerances of ±0.0001 m² (ISO 129-1:2018). Use it to size flooring, cross-sections or homework answers in one click (NIST HB 44, 2020).