I know for places like top-tier consulting firms (e.g. MBB) people regularly say that 1 yr of work translates to about 2 yrs of typical 40hr/week type of work.

I know for places like top-tier consulting firms (e.g. MBB) people regularly say that 1 yr of work translates to about 2 yrs of typical 40hr/week type of work. I think the highly right skewed distribution of tenure contributes to that.