XinY Units - Convert weight units from Ounces to Tonnes
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Ounces
The ounce /ˈaʊns/ is the name of several different units of mass, weight or volume and is derived almost unchanged from the uncia, an Ancient Roman unit of measurement. The avoirdupois ounce (exactly 28.349523125 g) is 1⁄16 avoirdupois pound; this is the United States customary and British imperial ounce.
Tonnes
The tonne is a metric unit of mass equal to 1,000 kilograms. It is also referred to as a metric ton to distinguish it from the non-metric unit. It is equivalent to approximately 2,204.6 pounds.