FERS Sick Leave Conversion Chart: How to Calculate Your Additional Service Credit The sick leave conversion chart for FERS provides a simple way to convert unused sick leave hours into additional retirement benefits. For every 174 hours of unused sick leave, an employee gains approximately one extra month of service. Employees can check the FERS sick leave conversion chart to see ho... https://www.federalpensionadvisors.com/post/fers-sick-leave-conversion-chart