Calculate a measurement in lumen to a measurement in candela (cd). The candela takes the radiation angle into account, which is measured in steradians (sr). The steradian is the SI unit for a solid angle and is equal to 1/4 pi of the entire sphere. A lumen is equal to 1 candela x steradian.
Jamaica's exchange rate of $93.80 to US$1 may seem high, but there are many countries with higher exchange rates. Guyana's currency is the weakest in the Caribbean at $203.45 to US$1. In spite of this, their economy grew by 5.4 per cent in 2011. Comparatively, Iran has the highest exchange rate in the world of $24,551 to US$1, followed by Somalia $23,000 to US$1, then Vietnam third with an exchange rate of $20,875 to US$1.
Jamaica: Which Currency Should Be Used. Many tourists ask if they should use Jamaican dollars or United States dollars when in Jamaica. The answer, as explained below, is that it depends on a number of factors. Where you stay and where you shop (where you spend your money) are the two most important factors. Jamaican Currency First, the official currency of Jamaica is the Jamaican dollar. Jamaican bills (banknotes) come in denominations of 50, 100, 500, 1000, and 5000 dollars.