부채 및 신용comparison

대출 상환 vs 투자 비교 계산기

Compare the guaranteed, risk-free return of paying down debt against the historical compounding potential of investing in index funds.

입력 변수

브라우저 내 연산

계산 결과 및 분석

Ready to Compare ($0)

왼쪽 입력창에 수치를 입력하시면 실시간 상환 일정 및 분석 결과가 생성됩니다.

Strategy Comparison: $0 Allocation

Wealth Delta$0

Guaranteed Debt Return0.0%

Projected Market Return0.0%

Projected Value$0

전략적 해석

핵심 인사이트 및 실행 방안

Paying down debt gives you a 100% guaranteed, risk-free return equal to your APR.
Investing in index funds offers compounding growth but carries market volatility.
Enter your extra monthly cash above to see which choice builds greater net worth over time.

섹션 1: 연산 메커니즘

이 계산의 원리 (알기 쉬운 설명)

Paying off debt gives you a 100% guaranteed, tax-free return equal to the interest rate of the loan. Investing in the market historically yields 7-10% annually before inflation, but carries market volatility and potential capital gains taxes. This tool models both paths side by side over your chosen timeline.

섹션 2: 수식 및 수학적 가정

알고리즘 수식 및 수학적 근거

수학 공식:

R = f(X_1, X_2, \dots, X_n) \quad \text{subject to standard actuarial bounds}

모델의 기본 가정:

Debt payoff return is risk-free and tax-exempt.
Market investment returns are annualized averages and do not account for year-to-year volatility.
Assumes monthly contributions are maintained consistently across the duration.

섹션 3: 실생활 적용 사례

Comparative Impact Modeling

전략적 조정을 통해 재정 궤적이 어떻게 달라지는지 확인하세요:

전략 A

Baseline Minimum Strategy

Making scheduled minimum payments without additional principal allocation.

Outcome: Maximum lifetime interest accrual and delayed financial freedom.

전략 B (최적화)

Accelerated Decision Strategy

Allocating strategic monthly surplus directly to principal reduction.

Outcome: Significant interest reduction and exponential acceleration toward goals.

핵심 요점: Even modest monthly adjustments create substantial compound savings over multi-year horizons.

섹션 4: 한계 및 예외 조건

모델 한계 및 경계 조건

While this engine calculates standard actuarial and consumer finance metrics, real-world finance introduces nuances that no automated model can fully predict:

Assumes tax rates, inflation indices, and APR rates remain static across modeled projections.
Educational estimate; not a formal underwriting commitment from lending institutions.
Excludes localized municipal surtaxes, insurance rider surcharges, or variable-rate APR triggers.

자주 묻는 질문

자주 묻는 질문: 대출 상환 vs 투자 비교 계산기

What is the "7% Rule" in personal finance?

Most financial advisors follow the rule of thumb: debts with interest rates above 7% should almost always be paid off first, while debts under 4-5% (like low-rate mortgages or federal student loans) can be serviced at minimums while prioritizing investing.

What if my employer offers a 401(k) match?

Always capture your full employer 401(k) match first! A 100% match is an instant 100% return on your money, which beats even the highest credit card APR.