15 Return on Investment Calculator
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Reviewed by Calculator Editorial Team
Understanding Return on Investment (ROI) is crucial for evaluating the profitability of your investments. This calculator helps you determine how much you'll earn with a 15% annual return rate.
What is Return on Investment (ROI)?
Return on Investment (ROI) measures the gain or loss generated on an investment relative to its cost. It's expressed as a percentage and helps investors assess the efficiency of their investments.
ROI is calculated using the formula:
ROI Formula
ROI = [(Net Profit - Initial Investment) / Initial Investment] × 100
A positive ROI indicates a profitable investment, while a negative ROI suggests a loss. A 15% ROI means your investment has grown by 15% over the investment period.
How to Calculate ROI
Calculating ROI involves these steps:
- Determine the initial investment amount
- Calculate the net profit (total revenue minus total costs)
- Apply the ROI formula to find the percentage return
Our calculator simplifies this process by automatically computing the ROI based on your inputs.
Important Note
ROI is not the same as rate of return. ROI measures profitability, while rate of return measures the actual growth of an investment.
15% ROI Example
Let's say you invest $10,000 with a 15% annual ROI. Here's how the calculation works:
Example Calculation
Initial Investment = $10,000
Annual ROI = 15%
Net Profit = $10,000 × 0.15 = $1,500
Final Value = $10,000 + $1,500 = $11,500
After one year, your investment would be worth $11,500, representing a 15% return on your initial investment.
ROI Over Multiple Years
Here's how your investment grows with compounding:
| Year | Initial Investment | 15% ROI | Final Value |
|---|---|---|---|
| 1 | $10,000 | $1,500 | $11,500 |
| 2 | $11,500 | $1,725 | $13,225 |
| 3 | $13,225 | $1,984 | $15,209 |
| 4 | $15,209 | $2,281 | $17,490 |
| 5 | $17,490 | $2,624 | $20,114 |
Frequently Asked Questions
What is a good ROI?
A good ROI depends on the industry and investment type. A 15% ROI is generally considered excellent for most investments, though higher returns may be expected in high-risk ventures.
How does compounding affect ROI?
Compounding means reinvesting earnings to earn additional returns. With compounding, your investment grows exponentially over time, as shown in the example table.
Can ROI be negative?
Yes, a negative ROI indicates a loss. This could happen if the net profit is less than the initial investment, resulting in a percentage loss.