Under FERS, the only sick leave that I can convert for retirement is 100 hours that I built up before converting. Under CSRS, you can convert all your built-up sick leave when you retire.

There are some who believe allowing credit for sick leave toward the FERS retirement computation would reduce sick leave abuse among employees, but Congress hasn't moved to take such action yet.

Figuring how much your unused sick leave really adds to your retirement benefit.

Employees covered by the older system can convert unused sick leave at retirement into credits that increase their pension. FERS does not include a sick-leave benefit.