How to use this roi calculator
Enter the values requested above and select Calculate. Change any input to compare another scenario. The calculation runs locally in your browser and does not require an account.
Formula and method
Example
If an investment costs $8,000 and is later worth $10,000, the gain is $2,000 and ROI is 25%.
Tips for a useful result
ROI does not account for time by itself; use annualized return when comparing investments held for different periods.
What this calculator is useful for
Calculate return on investment from an initial cost and the amount received or current value. The result is intended for quick estimates, checking arithmetic and comparing scenarios. When a result affects a contract, tax filing, medical decision, building-code requirement or other high-stakes situation, verify the result with the appropriate professional or authoritative source.
Frequently asked questions
What does the ROI Calculator calculate?
Calculate return on investment from an initial cost and the amount received or current value.
How does the ROI Calculator work?
ROI = (gain from investment − cost of investment) ÷ cost of investment × 100%.
Is the ROI Calculator free to use?
Yes. ERICH Calculators is free to use and does not require an account.