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🇰🇷 South Korea SpecificFully open and accessible for all foreign residents and international users in South Korea.

This service is calculated based on South Korea’s domestic laws, tax codes, administrative regulations, and cultural systems (such as official age reckoning, military service periods, 4 major social insurances, and traditional lunar calendars). It is fully accessible in English for foreign residents, travelers, and international users in Korea.

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#MilitaryDischarge#DischargeCalculator#MilitaryService#ServiceProgress#ROKMilitary#DdayCalculator#MilitaryDays#2025#2026

South Korea Military Service & Discharge Date Calculator Guide

This calculator computes precise discharge dates and rank-promotion timelines under South Korea's Military Service Act (Article 18) and Military Manpower Administration directives. Current confirmed service durations are 18 months for the ROK Army and Marine Corps, 20 months for the Navy, and 21 months for the Air Force and Social Service Personnel (공익근무요원). Simply enter your enlistment date and the tool projects promotion dates for Private (이등병), Private First Class (일병), Corporal (상병), and Sergeant (병장), along with the final discharge date. A real-time progress bar visualizes the percentage of service completed and remaining days, with milestones like the 100-day leave, final leave, and last-month sergeant status. Note that promotion timing is baseline—actual dates may shift by 1–2 months based on unit-level marksmanship and fitness evaluations—and calculations use the enlistment date, not the post-boot-camp deployment date. Useful for active-duty soldiers, prospective enlistees, and their families tracking the remaining service period.

All Military Branches

Covers ROK Army (18m), Marines (18m), Navy (20m), Air Force (21m), and Public Agents (21m).

Rank Promotion Timeline

Shows scheduled promotion dates to Private First Class, Corporal, and Sergeant.

Service Progress Tracker

Visual progress bar displaying completed percentage and remaining countdown days.

Last Reviewed: 2026-09-18

Legal Basis & Official Data Sources

This tool is grounded in the latest laws, regulations, and data from the following official authorities.

Frequently Asked Questions (FAQ)

A.

Army & Marine Corps: 18 months, Navy: 20 months, Air Force & Social Service Personnel: 21 months. These durations were finalized after gradual reductions completed in 2023 under the Ministry of National Defense's mid-term plan.

In-Depth Guide Articles

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More about Military Discharge Calculator on Fredric18 News

Read release notes, in-depth guides, and legal updates for this tool on our sister site.

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