ROI Calculator
Measure investment profit as a percentage of invested cost.
Calculated directly from the assumptions shown.
Continue in the full model.
Move from this screening result to the complete Real Estate DCF Valuation Model.
Get the model · €49 incl. VATHow the ROI calculation works
ROI = (value received − investment cost) ÷ investment cost.
Example calculation
A €1.0m investment that returns €1.25m has a €250k profit and 25% ROI.
How professionals use the result
Use ROI for a simple, timing-neutral return check. For multi-period investments, also calculate IRR and MOIC.
Common mistakes
- Ignoring time
- Using revenue instead of net value
- Excluding transaction costs
- Comparing pre-tax and post-tax returns
ROI Calculator FAQs
What does the ROI calculator measure?
Measure investment profit as a percentage of invested cost.
What formula does the ROI calculator use?
ROI = (value received − investment cost) ÷ investment cost.
Is the result suitable for a final investment decision?
Use it as a transparent screening calculation. Validate deal-specific tax, timing, financing and legal assumptions in a complete underwriting model before making a decision.
Do I need an account?
No. The calculator is free and runs in your browser. FormulaPlanet does not store your projects, inputs or results.
Is any input sent publicly?
No calculation is public by default. A shareable link is only created when you explicitly choose to copy one; that link contains the assumptions shown in its URL.
Why might my spreadsheet give a different answer?
Differences usually come from timing, compounding, sign conventions, fees or a different definition of the numerator or denominator. Match every period and definition before comparing.
What should I review alongside this result?
Use ROI for a simple, timing-neutral return check. For multi-period investments, also calculate IRR and MOIC.
Which mistakes are most common?
Ignoring time; Using revenue instead of net value; Excluding transaction costs; Comparing pre-tax and post-tax returns.