Free online ROI calculator — calculate Return on Investment percentage, profit, and net gain instantly. Ideal for business and investment decisions.
What is ROI Calculator? Complete Guide 2026
Return on Investment (ROI) is one of the most important metrics in business and personal finance. Whether you're evaluating a marketing campaign, a business investment, a stock portfolio, or a real estate purchase, our free ROI Calculator gives you an instant, clear answer.
ROI tells you what percentage return you earned relative to your investment cost. A positive ROI means you made money; a negative ROI means you lost money. It's simple, universal, and essential for every financial decision.
Our free online ROI Calculator works for any type of investment — from mutual funds to business projects to digital marketing spend.
Understanding ROI Calculator
ROI (Return on Investment) is a performance measure used to evaluate the profitability of an investment or compare the efficiency of several investments.
ROI expresses the ratio of net profit to cost of investment as a percentage:
- **Positive ROI**: Profitable investment
- **Negative ROI**: Loss-making investment
- **Higher ROI**: Better return relative to cost
Used in:
- Business investment analysis
- Marketing campaign performance
- Stock and mutual fund returns
- Real estate investment
- Digital advertising (Google Ads, Facebook Ads)
- Startup funding decisions
How to Use ROI Calculator - Step by Step Guide
Calculate ROI in 3 simple steps:
1. **Enter Investment Cost**: The total amount you invested or spent
2. **Enter Final Value (or Net Profit)**: Either enter the total return amount or the profit earned
3. **Click Calculate**: Get your ROI percentage instantly
Our calculator shows:
- ROI % (positive = profit, negative = loss)
- Net profit or loss
- Total return on your investment
ROI Calculator Formula & Calculation Method
**ROI = ((Net Profit / Cost of Investment) × 100)**
Or equivalently:
**ROI = ((Final Value − Cost) / Cost) × 100**
Example 1 — Business Investment:
Invested: ₹1,00,000 | Revenue Generated: ₹1,45,000
Net Profit = ₹45,000
ROI = (45,000 / 1,00,000) × 100 = **45%**
Example 2 — Marketing Campaign:
Ad Spend: ₹10,000 | Revenue from campaign: ₹23,000
Net Profit = ₹13,000
ROI = (13,000 / 10,000) × 100 = **130%**
Example 3 — Negative ROI:
Invested: ₹50,000 | Current value: ₹38,000
Net Profit = −₹12,000
ROI = (−12,000 / 50,000) × 100 = **−24%**
Practical Example with Step-by-Step Solution
**Real Estate ROI:**
Purchase price: ₹40 lakhs | Selling price: ₹58 lakhs | Renovation cost: ₹3 lakhs
Total Investment = ₹43 lakhs
Net Profit = ₹58L − ₹43L = ₹15 lakhs
ROI = (15 / 43) × 100 = **34.9%**
**Stock Investment:**
Bought 100 shares at ₹250 = ₹25,000 | Sold at ₹310 = ₹31,000
ROI = ((31,000 − 25,000) / 25,000) × 100 = **24%**
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Benefits of Using Our ROI Calculator
Benefits of our ROI Calculator:
✓ Works for any investment type
✓ Instant calculation
✓ 100% free, no sign-up
✓ Clear profit/loss display
✓ Useful for business, stocks, real estate, marketing
Expert Tips & Best Practices
Tips for using ROI effectively:
1. Always include ALL costs (hidden fees, taxes, maintenance)
2. Compare ROI across time periods for fair comparison
3. Use with CAGR calculator for annualized returns
4. A high ROI with high risk may not be better than moderate ROI with low risk
Frequently Asked Questions (FAQ)
What is a good ROI?
It depends on the investment type. For stocks, 7-10% annual ROI is considered good. For business investments, 15-30%+ is typical. For real estate, 8-12% is common.
What is the ROI formula?
ROI = ((Net Profit / Cost of Investment) × 100). Net Profit = Final Value − Initial Investment.
Can ROI be negative?
Yes. A negative ROI means you lost money on the investment. For example, investing ₹10,000 and getting back ₹7,000 = −30% ROI.
How is ROI different from CAGR?
ROI measures total return over the entire period. CAGR (Compound Annual Growth Rate) measures the annualized return, accounting for compounding. CAGR is better for comparing investments of different durations.