There is such a thing as a 50 euro cent coin, which is one half of a euro.
The British one pound coin weighs 9.5 grams.
The one cent Euro coin is worth 0.6452 of an American cent.
The one euro coin weighs 7.5 grams, per regulation EC 975/98.
One Euro is a coin, one dollar is a paper bill so you can't compare them.
There are eight euro coin denominations, ranging from one cent to two euros (the euro is divided into a hundred cents).
One of the pre-Euro Spanish coins was known as the peseta.
One Dollar
That would be a coin of the Irish pound, which has since been replaced by the euro.
One full euro is worth approximately 73 rupees, so one euro cent is worth 0.73 rupees.
Information on Euro conversion can be found at Currency Converter, Info Euro, Coin Mill, Travelex, Yahoo finance, Money Converter, Euro Residents and Europa.
Many countries have a coin to the value of one unit of currency (one pound, one euro, one dollar, etc.).