Like any other good, the price of a Bitcoin varies according to market demand, although the fact that it has been designed to behave as a deflationary asset and that its supply is limited to 21 million coins, facilitates that by the law of supply and demand itself, the Bitcoin exchange rate tends to rise continuously.
As of June 9, at the time of writing this article, the Bitcoin value today is 30,007.86 euros, 3.4 times its price a year ago, when the Bitcoin to Euro conversion rate was 8,629.5 Bitcoins for 1 euro. In 2010 Bitcoin price was less than one Euro cent.