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  2. Imperial units - Wikipedia

    en.wikipedia.org/wiki/Imperial_units

    The former Weights and Measures office in Seven Sisters, London (590 Seven Sisters Road). The imperial system of units, imperial system or imperial units (also known as British Imperial [1] or Exchequer Standards of 1826) is the system of units first defined in the British Weights and Measures Act 1824 and continued to be developed through a series of Weights and Measures Acts and amendments.

  3. United States dollar - Wikipedia

    en.wikipedia.org/wiki/United_States_dollar

    The U.S. dollar became an important international reserve currency after the First World War, and displaced the pound sterling as the world's primary reserve currency by the Bretton Woods Agreement towards the end of the Second World War. The dollar is the most widely used currency in international transactions, [4] and a free-floating currency.

  4. Conversion of units - Wikipedia

    en.wikipedia.org/wiki/Conversion_of_units

    Conversion of units is the conversion of the unit of measurement in which a quantity is expressed, typically through a multiplicative conversion factor that changes the unit without changing the quantity. This is also often loosely taken to include replacement of a quantity with a corresponding quantity that describes the same physical property ...

  5. U.S. Dollar Index - Wikipedia

    en.wikipedia.org/wiki/U.S._Dollar_Index

    The U.S. Dollar Index (USDX, DXY, DX, or, informally, the "Dixie") is an index (or measure) of the value of the United States dollar relative to a basket of foreign currencies, [1] often referred to as a basket of U.S. trade partners' currencies. [2] The Index goes up when the U.S. dollar gains "strength" (value) when compared to other currencies.

  6. Exchange rate - Wikipedia

    en.wikipedia.org/wiki/Exchange_rate

    For example, the purchasing power of the US dollar relative to that of the euro is the dollar price of a euro (dollars per euro) times the euro price of one unit of the market basket (euros/goods unit) divided by the dollar price of the market basket (dollars per goods unit), and hence is dimensionless. This is the exchange rate (expressed as ...

  7. Pound sign - Wikipedia

    en.wikipedia.org/wiki/Pound_sign

    The £ grapheme in a selection of fonts. The pound sign (£) is the symbol for the pound unit of sterling – the currency of the United Kingdom and its associated Crown Dependencies and British Overseas Territories and previously of Great Britain and of the Kingdom of England. The same symbol is used for other currencies called pound, such as ...

  8. International use of the U.S. dollar - Wikipedia

    en.wikipedia.org/wiki/International_use_of_the_U...

    The US dollar is an official currency in Zimbabwe, along with the euro, sterling, the pula, the rand, and several other currencies. A series of Zimbabwean Bond Coins was put into circulation on 18 December 2014 in 1, 5, 10, and 25 cent denominations, and afterwards 50 cent and 1 dollar bonds coins, which are pegged at the same rate as American ...

  9. Foreign exchange market - Wikipedia

    en.wikipedia.org/wiki/Foreign_exchange_market

    USD/ SEK exchange rate. USD/ CHF exchange rate. The foreign exchange market (forex, FX (pronounced "fix"), or currency market) is a global decentralized or over-the-counter (OTC) market for the trading of currencies. This market determines foreign exchange rates for every currency. It includes all aspects of buying, selling and exchanging ...