Finance calculator
ROI Calculator
Calculate return on investment as a percentage.
About the roi calculator
The ROI calculator finds the return on investment as a percentage.
How to use this calculator
- 1
Enter amount invested
Enter your total investment.
- 2
Enter amount returned
Enter the total return.
- 3
View results
See ROI percentage and profit/loss.
How the calculation works
ROI = (returned − invested) ÷ invested × 100. Positive ROI means profit; negative means loss.
Example: Invested 5,000, returned 6,500: ROI = 30%.
How financial calculations work
Most finance calculators use standard formulas: amortization for loans, compound interest for savings, and present/future value for investments. Results are estimates — actual terms may vary based on lender fees, credit score, taxes, and market conditions. Always consult a financial advisor for major decisions.
Understanding key financial terms
APR (Annual Percentage Rate) includes fees and interest. APY (Annual Percentage Yield) reflects compound interest. DTI (Debt-to-Income) ratio measures monthly debt payments against gross income. Lenders typically prefer DTI below 36%. CAGR (Compound Annual Growth Rate) smooths investment returns over time.
Important limitations
This tool provides a mathematical estimate based only on the values entered. It does not account for regulations, taxes, lender fees, market conditions, or individual circumstances. Results are for planning purposes only — consult a qualified professional for regulated, medical, financial, or construction decisions.
Frequently asked questions about roi calculator
How accurate is the ROI calculator?+
The calculation follows the displayed formula and retains full numeric precision before formatting the result.
Can I use the result professionally?+
Use it as a planning estimate. Confirm regulated, medical, financial, or construction decisions with a qualified professional.