Convert Thulam to Zeptogram (tulam to zg)

Mass is the measure of the amount of matter in an object and its resistance to acceleration (inertia). The SI base unit is the kilogram (kg), now defined by fixing the Planck constant at h = 6.62607015 × 10⁻³⁴ J·s. Mass differs from weight: weight is the gravitational force acting on a mass (measured in newtons), while mass remains constant regardless of location. Common mass units include gram (g), milligram (mg), tonne (t = 1,000 kg), pound (lb), and ounce (oz).

Thulam (symbol: tulam) is a traditional unit of mass used historically in South Asia, particularly for weighing precious metals such as gold and silver. In the standardized traditional system used for precious metals, one thulam is equal to approximately 11.6638038 grams. The unit is closely related to the tola and remains familiar in jewellery and bullion markets.

One thulam equals 11.6638038 grams, 0.0116638038 kilograms, and approximately 0.411428571429 ounces. It is mainly encountered in traditional weight systems, gold trading, jewellery, and historical measurement references.

Zeptogram (symbol: zg) is a metric unit of mass equal to one sextillionth (10^-21) of a gram. One zeptogram is exactly equal to 1 × 10^-24 kilogram, 0.001 attogram, or 1,000 yoctograms. The zeptogram is used to describe extremely small masses in particle physics, nanotechnology, analytical chemistry, and molecular biology, where measurements involve atoms, molecules, nanoparticles, and submicroscopic particles. It is frequently converted to attograms and yoctograms in high-precision scientific calculations.