Convert Quadrans (Biblical Roman) (quadrans) to Kilogram (kg) instantly.
About these units
Quadrans (Biblical Roman) (quadrans)
The quadrans, worth 1/4 of an as, weighed around 3 grams, typically made of bronze rather than silver. It served the Roman lower classes for everyday purchases—food, small household items, and public baths. In biblical passages, the quadrans symbolizes poverty and small generosity, anchoring theological teachings in real economic terms.
Kilogram (kg)
The kilogram is the base unit of mass in the SI system and the only SI unit defined directly by a fundamental constant rather than a physical object. Originally, its definition was tied to a platinum–iridium artifact stored in France—the famous "International Prototype Kilogram." Over time, tiny mass changes in the prototype and its official copies created difficulties for high-precision science. In 2019, the kilogram was redefined using Planck's constant, linking mass to the laws of quantum physics through the Kibble balance. This innovation ensures universality, stability, and reproducibility across the world. The kilogram is central to commerce, science, engineering, and every quantitative field dealing with matter. Its decimal relationships with other metric units (grams, milligrams, tons) make it universally convenient. From groceries to spacecraft mass budgets, the kilogram anchors modern mass measurement.