📈 Salary Increase Projection Calculator

Salary increase rates are applied as compound interest, not simple interest. For example, if your current salary is 40 million won and increases by 5% annually, after 1 year it becomes 42 million won (40M × 1.05), after 2 years 44.1 million won (42M × 1.05), and after 3 years 46.3 million won. This is 300,000 won more than simple interest calculation (40M + 2M × 3 years = 46M). With 5% compound interest over 10 years, it becomes approximately 65.11 million won, a 63% increase, which is 5.11 million won more than simple interest (40M + 2M × 10 years = 60M). According to Korea Employers Federation survey, the average wage increase rate for domestic companies in 2025 is expected to be 3.5%, resulting in approximately 41% increase over 10 years.

Salary increase rates vary significantly by position and experience. Entry-level to 3 years experience averages 5-7% annual increase with rapid growth, and if a new employee with current salary of 35 million won receives 6% annual increase, after 5 years it becomes approximately 46.85 million won. Assistant manager to manager level (4-10 years experience) shows 4-5% annual increase with stable growth, and if an assistant manager with current 50 million won receives 5% annual increase, after 5 years it becomes approximately 63.81 million won. General manager level and above (10+ years) shows 2-3% annual increase with gradual growth, and if a general manager with current 80 million won receives 3% annual increase, after 5 years it becomes approximately 92.74 million won. According to Korea Labor Institute research, promotion increases average salary by 20-30%. For example, promotion from assistant manager to manager increases from 50 million won to 65 million won (30% increase), and with subsequent manager-level increase rate (5% annually), after 5 years it becomes approximately 83.02 million won.