Historical activity data about backups and restorations are retrieved. Description files corresponding to cloud storage providers are received. Each description file includes a name of a cloud storage provider, a catalog listing cloud service options offered by the cloud storage provider, and pricing and descriptive information for the options. The historical activity data is mapped to the cloud service options. A set of cost figures is generated based on the mapping. Each cost figure represents a cost that would have been charged to a user, based on the historical activity data, by the cloud storage provider for storing the backups and accessing the backups for the restorations. The cloud storage providers are rated using the cost figures and the rated cloud storage providers are displayed in a user interface to allow the user to select a particular cloud storage provider to which the backups are to be migrated.