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Are the tools really free?
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Can I use the tools offline?
Once a tool has loaded it does its work on your device, so it keeps working even if your connection drops.
Which file types are supported?
PDF, Word, Excel, PowerPoint, OpenDocument and RTF documents, JPG, PNG, WebP, HEIC, AVIF, GIF and BMP images, MP4, MOV, WebM and MKV videos, MP3, WAV, M4A, OGG and FLAC audio, ZIP, 7z, RAR, TAR and GZIP archives, CSV, JSON, XML and plain text. Each tool lists exactly what it opens.
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ROI Calculator
Calculate return on investment and annualized ROI from the amount invested, the amount returned and how long you held it.
Return on investment (ROI) tells you how much an investment gained or lost compared with what you put in. Enter the amount invested and the amount you got back — or what the investment is worth today — and the ROI Calculator shows the percentage return, the gain or loss, and the multiple of your money.
Because a 45 percent return means something very different over one year than over ten, the calculator also gives the annualized ROI, also called the compound annual growth rate (CAGR). Enter how many years you held the investment, or the start and end dates, and compare investments of different lengths on equal terms. It works for shares, property, a marketing campaign, equipment or any other investment, in any currency.
How to use ROI Calculator
- Enter the amount you invested.
- Enter the amount returned or the current value, after costs.
- Enter how long you held it in years, or the start and end dates.
- Read the ROI, the annualized ROI and the multiple.
Features
- ROI percentage and the gain or loss in money.
- Annualized ROI (CAGR) for any holding period.
- Holding period in years or between two dates.
- Multiple of your money (final value ÷ amount invested).
- The formula with your own numbers.
- Any currency; shareable link; runs in your browser.
How ROI is calculated
ROI = (amount returned − amount invested) ÷ amount invested × 100. If you invest 10,000 and get back 14,500, the ROI is 4,500 ÷ 10,000 = 45 percent. A negative ROI means a loss. Include all costs — fees, commissions, taxes, maintenance — in the amounts so the result reflects what you really earned.
| Measure | Formula | Example (10,000 → 14,500 in 3 years) |
|---|---|---|
| ROI | (returned − invested) ÷ invested | 45% |
| Annualized ROI (CAGR) | (returned ÷ invested) to the power of 1 ÷ years − 1 | 13.19% a year |
| Multiple | returned ÷ invested | 1.45× |
Why annualized ROI matters
Plain ROI ignores time. Earning 45 percent over 3 years is about 13.19 percent a year, while 45 percent over 10 years is only about 3.8 percent a year — less than many savings accounts. The annualized figure assumes the gains compounded evenly each year, which makes it the fairest way to compare investments held for different lengths of time, and to compare them with interest rates or index returns.
What ROI doesn't tell you
ROI says nothing about risk: a high return on a risky investment may not be better than a steady lower one. It also treats money as arriving in one go; if you added or withdrew money along the way, the internal rate of return (IRR) is a better measure. And it ignores inflation — to see the real return, subtract the inflation rate from the annualized ROI as a rough guide.
Comparing two investments
Investment A turned 10,000 into 13,000 in 2 years; investment B turned 10,000 into 16,000 in 5 years. B has the higher ROI, 60 percent against 30 percent, but A grew faster: about 14.0 percent a year against 9.9 percent for B. If you could have reinvested A's money after two years at a similar rate, A was the better choice. Enter each one with its holding period and compare the annualized ROI to see this at a glance.
ROI in business
Businesses use ROI to compare projects: a marketing campaign that cost 5,000 and brought 8,000 of profit has an ROI of 60 percent. Be clear about what counts as the return: for marketing, use the profit from the extra sales, not the revenue. For equipment or software, include the time saved or costs avoided over its useful life, and compare the annualized figure with your cost of borrowing.
Frequently asked questions
How do I calculate ROI?
Subtract the amount invested from the amount returned, divide by the amount invested and multiply by 100.
What is annualized ROI?
The average yearly return that, compounded, turns the amount invested into the amount returned over the holding period. It is also called CAGR.
What is a good ROI?
It depends on risk and time. Long-term stock market averages are often quoted at around 7 to 10 percent a year before inflation.
Can ROI be negative?
Yes. A negative ROI means you got back less than you invested.
Should I include fees and taxes?
Yes. Subtract them from the amount returned (or add them to the amount invested) for a realistic ROI.
What if I added money over time?
ROI assumes one investment at the start. With several deposits or withdrawals, an IRR calculation is more accurate.
Is my data stored?
No. Everything is calculated in your browser.
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