How can we convert the value of denarius to today’s dollars?
The value of the denarius changed dramatically throughout the Roman Empire and in general its value was dictated by the amount of silver that was contained in the coin. The average amount of silver contained in the coin was around 3.2 grams, which in today’s money would cost around 2 US dollars. At a rough estimate, a Roman denarius at an average cost would be around 1 denarius to every 2 dollars. This does not actually equate to the buying power of the coin, however, but only to the material wealth of the currency. The actual buying power of the coin would be impossible to equate due a lack of reliable records and the vast fluctuation of currency value at the time.