How to use this calculator
Simple ROI compares gain or loss with the initial amount invested.
The method
Enter your values in the labeled fields and choose Calculate. The result panel shows the answer and supporting values when useful.
Initial investment: 5000, Final value: 6200
Select Calculate to evaluate these example values.
Scope and limitations
Does not annualize the result or account for cash flows, time, fees, taxes, or risk. A general planning calculation using only the assumptions you enter. It does not provide tax, legal, credit, or investment advice.
Common questions
Can I use different units?
Use consistent units unless this page is a unit converter. The result follows the units implied by the inputs.
Are results exact?
Displayed values may be rounded. Keep extra precision for important follow-up calculations.
Methods & verification
Formulas use standard mathematical definitions and fixed unit factors where applicable. See our methodology for numerical conventions, rounding, privacy, and limitations.