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Home/Finance/ROI Calculator (Return on Investment)
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Finance · Updated 2026

ROI Calculator (Return on Investment)

Find your investment’s return: the profit, total ROI and annualized return (CAGR), from the amount invested and the final value.

Enter your data

RON
RON
years

Enter the amount invested, the final value and the period. See the profit, total ROI and annualized return (CAGR).

=Total return (ROI)
+50%
Profit+500 RON
Total return (ROI)+50%
Annualized return (CAGR)+14.47%
Multiple1.5×

ROI is the total return over the whole period, and CAGR is the annualized average return (accounting for compounding). It excludes inflation and taxes.

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Standard financial formulas (time value of money). Instant in-browser calculation, no account, no data sent. Interest rates are indicative — check the bank’s actual offer.

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iHow it is calculated

ROI (return on investment) is found by comparing the profit to the initial investment:

ROI = (final initial) ÷ initial × 100

From 1,000 to 1,500: profit 500, ROI = (1,500 − 1,000) ÷ 1,000 × 100 = 50%; over 3 years, a CAGR of ≈ 14.5% per year.

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?Frequently asked questions

What is ROI (return on investment)?

ROI measures how much you gained relative to how much you invested, expressed as a percentage. It is the simplest indicator of an investment’s profitability.

How is ROI calculated?

ROI = (final value − initial investment) ÷ initial investment × 100. For example, from 1,000 to 1,500: (1,500 − 1,000) ÷ 1,000 × 100 = 50%.

What is the difference between ROI and CAGR?

ROI is the total return over the whole period, regardless of duration. CAGR is the average return per year, which allows a fair comparison of investments with different durations.

What is a good ROI?

It depends on risk and alternatives. ROI is always assessed relative to the period and other options; a stock return is compared with the market average, not in absolute terms.

Does ROI account for time?

No. A 50% ROI in 1 year is far better than the same 50% in 10 years. To compare across different durations, use the annualized return (CAGR).

How do I calculate ROI for a real-estate investment?

Add the gains (rent received plus value appreciation) and subtract all costs (purchase, taxes, renovations, maintenance), then divide by the total investment.

Can ROI be negative?

Yes. If the final value is lower than the initial investment, ROI is negative and indicates a loss. For example, from 1,000 to 800 gives an ROI of −20%.

How do I compare two investments using ROI?

Compare them over the same period. If the durations differ, convert ROI into an annualized return (CAGR) for a fair comparison between the two.

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