Convert Hectare (ha) to Sabin (sabin) instantly.
About these units
Hectare (ha)
A hectare is equal to 10,000 m², or 0.01 km², and is the standard unit of land measurement in agriculture, forestry, and land management across most of the world. Unlike the acre, which comes from historical English land systems, the hectare is fully metric and integrates cleanly into scientific practice. Farmers use hectares to measure fields, crop yields, irrigation requirements, and livestock capacity. Foresters rely on hectares for forest inventories, timber production estimates, and biodiversity assessments. Urban planners use hectares when describing zoning, green space, and population density. The hectare is the perfect intermediate scale: large enough for meaningful land plots, and small enough to avoid unwieldy numbers when describing farms or urban districts.
Sabin (sabin)
A sabin is the acoustic unit of sound absorption area, equivalent to the absorption provided by one square foot of a perfectly absorbing surface. Unlike geometric area units, the sabin measures how much sound energy a surface absorbs rather than its physical size alone. Materials with partial absorption effectiveness—such as acoustic tiles or drapes—contribute fractional sabins depending on their absorption coefficient. Architects and acoustic engineers use sabins to design theaters, concert halls, classrooms, and workplaces. The unit translates directly into reverberation time calculations, making it a foundational concept in architectural acoustics.