Convert Quarter (UK) (qr (UK)) to Teragram (Tg) instantly.
About these units
Quarter (UK) (qr (UK))
The UK quarter, equal to 28 pounds, corresponds to 1/4 of a UK hundredweight. Historically used in grain trade, wool markets, and taxation, it reflects the older English approach to structuring weights around the stone. Its direct link to the long hundredweight made it easy for merchants to calculate loads and price goods. While obsolete today, the UK quarter remains important for historians reconstructing traditional British commerce and agricultural economies.
Teragram (Tg)
A teragram equals 1,000 gigagrams, or 10⁹ kilograms. It is widely used in climatology, atmospheric science, and ecology to describe the mass of carbon, nitrogen, methane, or other substances exchanged annually between Earth's systems. For example, global carbon fluxes—movement of carbon between oceans, atmosphere, and biosphere—are typically measured in teragrams. Volcanoes, wildfires, and anthropogenic emissions often release substances on this scale. Tg-level measurements give researchers insight into the stability, sustainability, and long-term trends of Earth's ecosystems.