投資の利益率を簡単計算！ROI計算ツール
リターンを可視化して賢い投資判断をしよう
min451 words
投資利益率（ROI）と年率リターンを計算し、異なる期間における投資の収益性を評価します。
finance
ROI計算機
投資利益率（ROI）と年率リターンを計算し、異なる期間における投資の収益性を評価します。
入力
計算に必要な値を入力してください
結果
計算結果を表示
計算するには以下の値を入力してください
ROIとは何ですか
リターン on 投資 (ROI) measures the profitability of an 投資 as a パーセンテージ of the initial コスト. It is a key performance indicator used to evaluate the efficiency of an 投資 or compare the efficiency of different investments. Annualized ROI accounts for the holding period, allowing for fair comparison between investments of different durations.
使い方
Enter your initial 投資, final/current 値, any additional investments made, fees paid, and the holding period in years. The 計算機 displays 合計 ROI パーセンテージ, annualized ROI, 合計 利益 or 損失, and helps you evaluate the 投資 performance.
よくある質問
What is Return on Investment (ROI)?
Return on Investment (ROI) is a performance measure used to evaluate the efficiency or profitability of an investment. It calculates the percentage of return on a specific investment relative to its cost.
How do I use this calculator?
Simply enter the 'Amount Invested' (the initial cost) and the 'Amount Returned' (the final value or proceeds). The calculator will instantly compute the ROI percentage and the total profit or loss.
What is the formula used?
The formula used is: ROI = ((Amount Returned - Amount Invested) / Amount Invested) * 100. This gives you the profit as a percentage of the original investment.
Can ROI be negative?
Yes, a negative ROI indicates that you lost money on the investment. This happens when the 'Amount Returned' is less than the 'Amount Invested'.
Does this account for time (e.g., annually)?
No, this calculator provides the total ROI over the entire period of the investment. It does not calculate the annualized return, which would account for how long the money was invested.
What is considered a 'good' ROI?
A 'good' ROI depends heavily on the industry, risk tolerance, and timeframe. Generally, a positive ROI is better than a loss, and investors often look for returns that beat the average market return or inflation.
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