투자 계산기

Project your investment growth, analyze ROI, and see how inflation and taxes affect your returns. Get instant results with growth charts and year-by-year breakdown.

귀하의 세부 정보

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S&P 500 과거 평균: ~10%

조정 (선택 과목)

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Enter your initial investment, monthly contribution, expected return, and period. Optionally add inflation and tax rate, then click Calculate to see projected growth, ROI, and scenarios.

전체 사용자 가이드

What is ROI and CAGR?

ROI (Return on Investment) measures total return as a percentage of what you put in. CAGR (Compound Annual Growth Rate) is the smoothed annual return that accounts for compounding over time. This calculator projects growth with monthly contributions, then applies inflation and tax adjustments so you see both nominal and real outcomes.

What Your Results Mean

최종 잔액

Projected value at the end of the period before taxes; includes contributions and investment gains.

인플레이션 조정 가치

Today's purchasing power of your future balance. Inflation reduces real value over time.

세후 가치

Estimated value after capital gains tax on investment gains. Use your expected tax rate.

이 계산기를 사용하는 방법

  1. Enter initial investment and/or monthly contribution
  2. Set expected annual return and investment period in years
  3. Optionally add inflation rate and capital gains tax rate
  4. Click Calculate to see summary, growth chart, breakdown, and scenarios

중요 사항

  • This calculator is for education and estimation only. Not financial or investment advice.
  • Actual returns vary. Past performance does not guarantee future results.
  • Consider consulting a financial advisor for your situation.

투자팁

  • Diversify across asset classes; don't put all eggs in one basket.
  • Use tax-advantaged accounts (401k, IRA) when possible.
  • Keep fees low; they compound against you over time.
  • Stay invested long-term; time in the market beats timing the market.

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