1. A computer-implemented method for estimating a future cost of a grid job, said method comprising: calculating, at a client system enabled to submit a particular grid job to a grid provider that facilitates a grid environment for processing said particular grid job, a ratio of an application based metric to a grid provider metric for processing said particular grid job; creating a table with an entry comparing said application based metric to a cost per grid provider metric for said grid provider with said ratio; storing said table with said entry for said particular grid job; and responsive to detecting a next grid job, estimating a cost for said grid provider to process said next grid job based on a particular number of application based metric operations required for said next grid job translated by said ratio into said grid provider metric and multiplied by said cost per grid provider metric.