Rangdom

Convert an area into every unit at once

Enter one value and a unit — square millimeters, square centimeters, square meters, hectares, square kilometers, square inches, square feet, square yards, acres, or square miles — and read it back in every unit at once. Each input is reduced to a canonical value in square meters using exact factors (1 ha = 10000 m², 1 acre = 4046.8564224 m², 1 ft² = 0.09290304 m²), then every output is derived from that base. Decimals are supported, but an area cannot be negative.