Manzana (unit)

A manzana is a unit of area used in Argentina and in many Central American countries, originally defined as 10,000 square Spanish customary units#Vara in Spanish customary units. In other Spanish-speaking regions, the term has the meaning of a city block.
Today its size varies between countries:

In Argentina it is a hectare, 10,000 m².
In most Central American countries it is about, varying between countries.
In Belize it is.
In Nicaragua it is.

If a vara is taken as 83.59 cm, then a manzana of 10,000 square varas is equal to 6,987.29 m². In calculations, the approximate value of 7000 m² is often used to simplify conversion.