ROI Calculator
Quantify how well your money is working.
ROI Calculator
ROI = (Final Value - Invested) / Invested x 100
Calculated instantly
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What This Calculator Does
The ROI Calculator measures how efficiently your investment performed by comparing the final value to what you put in. Investors, marketers, and founders use it to judge a single decision in one clear percentage.
How It Works
Net profit is the final value minus the amount invested. ROI expresses that profit as a percentage of the original investment: (final - invested) / invested x 100.
Example
Invest R5,000 and receive R6,500 back. Net profit is R1,500 and ROI is 30%, meaning every rand returned R1.30.
Formula
Profit = Final − InvestedROI = (Final − Invested) / Invested × 100Reading the Results
Net Profit
The absolute gain, final value minus the amount invested.
Return on Investment
Profit expressed as a percentage of the original investment, the standard way to judge a deal.
Frequently Asked Questions
What is a good ROI?
It depends on risk and timeframe. Stock-market averages hover around 7-10% annually, while startups and ads require much higher returns to justify the risk.
Does ROI include time?
No, basic ROI ignores duration. Annualized ROI divides the growth by the holding period for fair comparison.
What if I lose money?
When the final value is below the invested amount, the calculator reports a negative ROI and a loss.