Enter the enlistment date and service branch — this tool computes the Korean discharge date, promotion schedule (Private → Sergeant), and remaining days.
Disclaimer: This tool is a reference based on Korea's 2026 standard service periods and typical Army promotion intervals. Final discharge dates, promotion dates, and service end dates must be confirmed via the MMA 'My Military Service Status' app and your unit personnel office. Alternative service, research personnel, and officers follow separate regulations. No input is stored on our servers.
As of 2026, the mandatory service periods in the Republic of Korea are: Army 18 months, Navy 20 months, Air Force 21 months, Marines 18 months. Different rules apply to social-service personnel, research personnel, and alternative service.
Under current Army conventions, promotions typically fall at month 2 (Private → PFC), month 8 (PFC → Corporal), and month 14 (Corporal → Sergeant). Exact dates depend on your unit and current regulation updates — confirm with your unit personnel office.
1. Enter enlistment date (YYYY-MM-DD).
2. Select your service branch.
3. Click Calculate. Discharge date, promotion schedule, and progress appear.
This calculator uses enlistment date + service months. The official discharge date is set by your unit personnel office and the MMA 'My Military Service Status' app — always treat those as authoritative.
Army 18, Navy 20, Air Force 21, Marines 18 months. Soldiers who enlisted before the gradual reduction policy may have longer periods — check your enlistment notice.
Promotion dates are administrative. Your unit's personnel office assigns the actual order date; this tool provides a month-based approximation.
Medical or family-reason early discharge and officer-pathway extensions follow separate regulations and unit review. This tool reflects standard service only — confirm with official channels.
The MMA 'My Military Service Status' app is authoritative. This tool uses a month-based approximation and may differ by up to 1 day. Always rely on the official app for paperwork and leave planning.
Enter your enlistment date and branch (Army/Navy/Air Force/Marines) — this free tool instantly returns the 2026-standard discharge date and promotion milestones.
See a live service-progress bar, total days served, and days remaining in a single view. Family members and partners often check this daily; the weekday readout helps with leave and visit planning.
Calculation is enlistment date + service months. Final discharge and promotion dates are set by the Korean Military Manpower Administration (MMA) and your unit — confirm via 'My Military Service Status' before acting on critical dates.