That is according to a new report published by the European Banking Authority (EBA), which stated this figure will be necessary if the continent's financiers are to satisfy the requirement for them to hit nine per cent in these terms by June 2012.
The body - which superseded the Committee of European Banking Supervisors on 1 January of this year - indicated some lenders will be forced to implement a temporary buffer in order to meet this target.
Meanwhile, it is thought that banks in Greece will need an additional $42 billion of additional capital moving forward.
The EBA went on to state that it is determined to "avoid a spiral of forced de-leveraging and the ensuing credit crunches, which would affect the real economy".
By Tony Aynsley