ROI Calculator

What is the ROI Calculator?

Calculate return on investment (ROI) and annualized return from your cost and final value. ROI shows the percentage gain or loss on an investment, and the annualized figure makes investments held for different lengths of time comparable.

How to use the ROI Calculator

1. Enter your amount invested, your amount returned, your holding period.
2. Results update automatically as you type; you can also press Calculate.
3. Read the output: roi, annualized roi, net profit.
4. Use the 📊 chart to see the result visually, then copy or share it.

Formula and method

Worked example

With amount invested = $1,000, amount returned = $1,500, holding period = 2 years, the ROI Calculator returns roi: 50.00%; annualized roi: 22.47%; net profit: $500.00.

Where the ROI Calculator helps in real life

You bought equipment for $3,000 that produced $4,200 of value over two years. The calculator shows a 40% ROI and the equivalent yearly rate.

You are comparing two investments, one held for one year and the other for five. Annualized ROI puts them on the same footing.

Common mistakes to avoid

• Comparing total ROI across very different time periods.
• Leaving out costs such as fees, maintenance or your time.
• Using projected returns as if they were already achieved.
• Ignoring risk — a high ROI may come with a high chance of loss.

💡 Practical tip: A 50% ROI over ten years is only about 4.1% a year — always check the annualized rate.

Tips for better results

• Always look at annualized ROI when holding periods differ.
• Include every cost in the amount invested.
• Compare with what the money could earn elsewhere.

⚠️ These results are for educational purposes and are not financial advice. Confirm figures with your lender or a licensed financial professional before making decisions.

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