⚡ Quick Answer
ROI (Return on Investment) measures how profitable an investment is. Formula: ROI = (Net Profit / Cost of Investment) x 100. Example: you invest 50,000 rupees and earn 65,000 back — net profit = 15,000. ROI = (15,000 / 50,000) x 100 = 30%. A positive ROI means you made money. A negative ROI means you lost money.
💰 Finance

📈 ROI Calculator

Calculate your Return on Investment instantly. Find out if your investment, business, or project was profitable and by how much. Simple, clear, and instant!

✏️ Enter Your Values
✨ Your Result
🦉Owl's Explanation
📈
Fill in the values above and click Calculate ✨

🤔 How Does This Work?

ROI is calculated using the standard formula used by investors and businesses worldwide:

ROI (%) = ((Final Value - Initial Investment) / Initial Investment) x 100

  • Net Profit = Final Value minus Initial Investment
  • ROI % = Net Profit divided by Initial Investment, multiplied by 100
  • Annual ROI = Total ROI divided by number of years (if time period is entered)

A positive ROI means your investment made money. A negative ROI means you lost money. Use ROI to compare different investment options and choose the most profitable one.

✅ Trusted Tool
The 365tool.net ROI Calculator uses the standard formula used by investors, accountants, and business analysts worldwide. Free for entrepreneurs, investors, students, and business owners. Results are for guidance — consult a financial advisor for major investment decisions.
❓ FAQ
What is a good ROI?
A good ROI depends on the type of investment and the time period. For stocks, 7-10% annual ROI is considered good. For a business, 15-25%+ ROI is typical for a healthy company. Real estate often returns 8-12% annually. Anything above your cost of borrowing money is positive.
What is the difference between ROI and profit?
Profit is the actual money you made (return minus investment). ROI is the profit expressed as a percentage of your investment. Example: invest 100,000, earn back 120,000. Profit = 20,000. ROI = 20%. ROI lets you compare different investments fairly.
Can ROI be negative?
Yes! A negative ROI means you lost money. If you invested 100,000 and only got 80,000 back, your ROI is -20%. A negative ROI tells you the investment was not profitable. It is important to know this before making future investment decisions.
How do I calculate annual ROI?
To find annual ROI, divide the total ROI by the number of years. Example: 30% total ROI over 3 years = 10% annual ROI. Our calculator shows both total ROI and annualised ROI when you enter the time period.
What is the difference between ROI and profit margin?
ROI measures return relative to your investment cost. Profit margin measures profit relative to revenue (sales). A business can have a high profit margin but low ROI if it requires very large capital investment to generate sales.