Carreau (unit)
The Carreau was a French field and area measure in Haiti . As Alexander von Humboldt noted, the measure was the same as the Carré used in Martinique . The underlying length measurement was the step / pas with 1.1369 meters for 3 ½ old Parisian feet .
- 1 carreau = 10,000 square steps / pas carrées = 122,500 Parisian square feet (old) = 129.263 ares
 
Larger areas were measured with the caballería common in the neighboring Spanish colonies . In Haiti this measure was smaller than in Cuba . The equivalent was:
- 1 Caballería = 10 Carreaux = 12.9236 hectares
 
literature
- Christian Noback , Friedrich Noback : Complete paperback of the coin, measure and weight ratios, the government papers, the exchange and banking system and the customs of all countries and trading venues. Volume 2, FA Brockhaus, Leipzig 1851, p. 969.