Weights and measures [H]
Hacienda: Old Mexican agrarian measure = 877,805 a.
Hato: Agrarian measure = 2 leagues in radius and 12.5754 in perimeter. In Cuba = 226,068 km²
Hectare: Surface measure = 10,000 m²
Hemina (emina): Old Spanish measure of capacity for aggregates.
In Asturias = 8 cushions.
In León = 4 bushels.
Henry (H): SI derived unit The henry is the electrical inductance of a closed circuit in which an electromotive force of 1 volt is produced when the electric current through the circuit varies uniformly at a rate of 1 ampere per second.
Time: Spanish measure of length for continua. In Huesca = 4,117 km and in Tarragona = 4,458 km.
Huebra: Spanish agrarian measure. In Ávila = 22.359589 a.