How many years between adam and the flood?

According to Archbishop James Ussher's chronology done in the 17th century, Adam was created 4,000 years before Jesus or 4,004 BC which equates to 1 Anno Mundus (year of the World).

Noah's Flood occurred in this timeline 2344 BC when Noah was 600 years old. This would be 1656 Anno Mundus or the length of time between the creation of Adam and the start of the Flood.