ROI Calculator
Quickly determine return on investment (ROI) and annualized ROI to compare opportunities. Useful for business planning, marketing analysis, and investment evaluation.
ROI Formula
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What is ROI Calculator?
Enter your initial investment cost and the final value or gain to calculate your return on investment as a percentage and in dollar terms. ROI equals the gain minus the cost, divided by the cost, multiplied by 100. This gives you a standardized way to compare the profitability of different investments regardless of their size.
How does ROI Calculator work?
An online financial analysis tool that computes ROI using the standard formula. It takes the total cost of an investment and the total return or final value, then calculates the net profit and expresses it as both a percentage and a dollar amount. The calculator works for stocks, real estate, business projects, marketing campaigns, and any other investment scenario.
Key Features
- Calculates ROI as a percentage
- Shows net profit in dollar terms
- Compares multiple investment scenarios side by side
- Supports any investment type and dollar amount
- Handles both gains and losses with negative ROI display
- Shows annualized ROI when time period is provided
- All calculations run locally in your browser
Common Use Cases
Stock Portfolio Analysis
Calculate the return on individual stock picks or your overall portfolio to evaluate whether your investment strategy is working.
Real Estate Investment
Determine the ROI on a rental property or house flip by comparing total acquisition and improvement costs against the sale price or rental income.
Marketing Campaign Evaluation
Measure the return on marketing spend by comparing campaign cost to revenue generated, helping allocate budget to the highest-performing channels.
Business Project Justification
Build a business case for a capital project by estimating the ROI and comparing it to alternative uses of the same funds.
How to Use This Tool
Enter the Investment Cost
Type the total amount you invested or spent, including purchase price, fees, and any additional costs.
Enter the Return or Gain
Input the total value received back from the investment, such as sale proceeds, total revenue, or current market value.
View Your ROI
The calculator displays the ROI percentage and net profit amount. Use these figures to compare against other investment options.
Pro Tips
- 1
Compare ROI across investments of different sizes using the percentage rather than the dollar amount to get a fair comparison.
- 2
Factor in all costs including transaction fees, taxes, maintenance, and opportunity cost when calculating true investment cost.
- 3
Annualized ROI is more meaningful than total ROI for investments held over different time periods.
- 4
A positive ROI means you made money, but compare it to inflation and alternative investments to judge whether the return was worthwhile.
- 5
Use ROI as one metric among several. Cash flow, risk level, and liquidity also matter when evaluating investments.
Frequently Asked Questions
What is a good ROI?
A good ROI depends on the investment type, time horizon, and risk level. The stock market has historically returned about 7 to 10 percent annually after inflation. Real estate investors often target 8 to 12 percent. Higher-risk investments should offer higher ROI to compensate for the additional uncertainty.
How is ROI different from profit?
Profit is the absolute dollar amount earned, while ROI expresses profit as a percentage of the investment cost. A 10,000 dollar profit on a 100,000 dollar investment is a 10 percent ROI, which is more useful for comparing against other opportunities.
Can ROI be negative?
Yes, if the return is less than the cost, the ROI will be negative, indicating a loss. For example, investing 1,000 dollars and receiving 800 back results in a negative 20 percent ROI.
What is annualized ROI?
Annualized ROI adjusts the total return for the length of time the investment was held, expressing it as a yearly rate. This allows fair comparison between investments held for different durations. For example, a 50 percent return over 5 years is roughly 8.4 percent annualized.
Should I include taxes in the ROI calculation?
Yes, for an accurate picture of your actual return, use after-tax figures for both the cost and the gain. Capital gains taxes, income taxes, and property taxes all reduce your effective ROI and should be factored in.