Pound (lbs)
Definition: The pound (lbs) is a unit of mass commonly used in the United States and the United Kingdom. It is officially defined as exactly 0.45359237 kilograms. The pound remains a key weight measurement in various fields, including trade, cooking, and sports.
History: The pound has origins in Roman and medieval systems. The Roman libra (from which 'lbs' is derived) influenced various European weight standards. Over time, the British and American systems evolved independently, with the UK adopting the avoirdupois pound in 1824. The international pound was standardized in 1959 to align with metric conversions, ensuring consistency across different regions.
Current Use: The pound is widely used in the US and UK for body weight, grocery items, and postal services. It also appears in aviation, sports (boxing and wrestling), and commercial trade, particularly where metric adoption is incomplete.
Carat (ct)
Definition: The carat (ct) is a unit of mass used for measuring gemstones and pearls. One carat is precisely 200 milligrams (0.2 grams). It ensures standardization in the valuation of diamonds, sapphires, and other precious stones.
History: The carat originates from the seeds of the carob tree, which were historically used as counterweights due to their uniform mass. The modern metric carat (200 mg) was standardized in 1907 to eliminate regional inconsistencies. This change facilitated international trade and valuation of gemstones.
Current Use: The carat is universally used in the jewelry and gemstone industries. It provides an accurate measurement for diamonds, emeralds, and other precious stones, ensuring fair pricing in global markets.
Quick Conversion Table Pound (lbs) to Carat (ct)
1 Pound (lbs) equal to 2,267.96185 Carat (ct)
5 Pound (lbs) equal to 11,339.80925 Carat (ct)
10 Pound (lbs) equal to 22,679.6185 Carat (ct)
20 Pound (lbs) equal to 45,359.237 Carat (ct)
30 Pound (lbs) equal to 68,038.8555 Carat (ct)
50 Pound (lbs) equal to 113,398.0925 Carat (ct)
75 Pound (lbs) equal to 170,097.13875 Carat (ct)
100 Pound (lbs) equal to 226,796.185 Carat (ct)