Enter your enlistment date and branch to calculate your discharge date, D-day, and service progress.
Add the branch's fixed service length (in months) to the enlistment date, then subtract one day. Example: enlisting on 2024-01-02 for an 18-month Army term gives a discharge date of 2025-07-01.
Service length is a fixed value under Korea's Military Service Act. Individual circumstances — leave, delayed training, early discharge, or term shortening/extension — are not reflected. Confirm your exact discharge date with your unit.
Add your branch's fixed service length (in months) to your enlistment date, then subtract one day. Example: enlisting in the Army (18-month term) on 2024-01-02 gives a discharge date of 2025-07-01.
| Branch | Service length | Discharge date |
|---|---|---|
| Army / Marine | 18 months | 2025-07-01 |
| Navy | 20 months | 2025-09-01 |
| Air Force | 21 months | 2025-10-01 |
| Social service | 21 months | 2025-10-01 |
Yes. This tool only applies the fixed service length set by the Military Service Act. It does not account for leave and training schedules, unit-level administrative processing, or individually early/delayed discharges — confirm the actual date with your unit.
They are fixed values by branch under the Enforcement Decree of the Military Service Act: 18 months for Army/Marine, 20 for Navy, and 21 for Air Force and social service personnel, as of 2024.
It means the expected discharge date has already passed — you have already been discharged.
Days elapsed from enlistment to today, divided by the total service days from enlistment to discharge, shown as a percentage.
This calculator applies only the fixed service length under the Military Service Act as a reference estimate. It does not reflect individual early or delayed discharge, term shortening or extension, or leave and training schedules — always confirm your exact discharge date with your unit.