How many?

Square Inches

A square inch is a unit of area, equal to the area of a square with sides of one inch. For context, there are 68.89 square inches in a sheet of A4 paper. sheet of A4 paper.

Hectares

The hectare is a non-SI metric unit of area equal to a square with 100-metre sides (1 hm2), or 10,000 m2, and is primarily used in the measurement of land. There are 100 hectares in one square kilometre. An acre is about 0.405 hectare and one hectare contains about 2.47 acres. Hacienda Nápoles, the luxurious ranch built by notorious drug lord Pablo Escobar, and which included a zoo complete with animals such as antelope, elephants, exotic birds, giraffes, hippopotamuses, ostriches, and ponies, was 1,500 hectares in size.