ROI Calculator
Calculate the Return on Investment (ROI) for any business project or personal investment.
Fill in the fields above and click Calculate to see your results.
How to use
To successfully use the ROI Calculator, you must gather specific financial numbers related to your investment or project. Begin by carefully entering your 'Amount Invested' (your total initial costs) and 'Amount Returned' (the final value or total revenue generated) into the correct fields.
Make sure to double-check your records to get the most accurate numbers, and ensure you use the correct currency units depending on your local context. Once you input the data, the calculator will immediately process these figures using standard financial formulas.
You will be able to see key metrics such as your overall Return on Investment percentage and your net Investment Gain. By analyzing these outputs, you can determine if your current numbers align with your financial goals or if strategic adjustments are necessary to improve profitability.
How it's calculated
ROI
Total percentage return on investment
Investment Gain
Net profit from the investment
Examples
Stock market investment
- Amount Invested:10,000,000
- Amount Returned:12,000,000
Result
- ROI:20.0%
- Investment Gain:2,000,000
If you invest 10 million VND in a stock index fund and its value grows to 12 million VND over a year, your net gain is 2 million VND. This results in a 20% ROI, which is considered a very strong performance for traditional equity investments.
Marketing campaign
- Amount Invested:50,000,000
- Amount Returned:150,000,000
Result
- ROI:200.0%
- Investment Gain:100,000,000
Spending 50 million VND on a targeted social media marketing campaign that generates 150 million VND in sales revenue yields a net profit of 100 million VND. This translates to an impressive 200% ROI, showing that the campaign was highly effective at driving profitable customer acquisition.
Industry Benchmarks
| Metric | Typical Range |
|---|---|
| A 10% ROI is often used as a benchmark for stock market investments | 10 % |
Data source: S&P 500 Historical Average
Frequently Asked Questions
What is ROI?
What is a good ROI?
Can ROI be negative?
What happens if I enter incorrect numbers into this calculator?

CalcVault Editorial Team
Verified Content Team
The CalcVault Editorial Team is a group of finance, health, and mathematics specialists dedicated to producing accurate, bilingual calculator content for Vietnamese and global small business owners. Every formula on CalcVault undergoes rigorous source verification against authoritative bodies including the IRS, CFPB, CDC, WHO, and NIST before publication. Our process includes independent peer review, structured fact-checking, and scheduled content audits to ensure every calculator remains up-to-date with the latest regulatory and scientific standards. We are committed to editorial independence from our advertising partners.