ROI Calculator
Instantly calculate ROI and annualized returns
投資利回りを計算
計算結果
About ROI Calculator
The ROI Calculator quantitatively evaluates investment performance by calculating return on investment and compound annual growth rate. Enter the initial investment (principal), final value, and holding period to automatically compute ROI and CAGR. If you make annual contributions, the tool separates total invested capital from capital gains, making it easy to assess staged investment strategies.
ROI shows your overall return percentage, while CAGR provides an annualized metric for fairly comparing investments with different holding periods. It works for stocks, real estate, mutual funds, cryptocurrencies, and any other asset class. Positive returns are displayed in green and losses in red for intuitive performance assessment.
All calculations run entirely in your browser with no investment data sent to any server. Security and privacy are built-in by design.
How to use ROI Calculator
- Enter your initial investment amount (required)
- Optionally enter annual contributions if you make them
- Enter the current or final value of the investment
- Enter years held to calculate ROI, annualized return, and profit/loss
Benefits of ROI Calculator
- Calculate both ROI and CAGR simultaneously for accurate investment efficiency analysis
- Support for annual contributions allows detailed assessment of staged investment strategies
- Color-coded profit/loss display with breakdown of capital gains and invested capital
- All calculations run locally in your browser—no investment data ever sent to servers
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