Finance calculator
Return on Investment (ROI) Calculator
Measure any investment at a glance. Enter what you put in and what it is worth now to instantly see your return on investment as a percentage, plus your profit or loss.
Measure any investment at a glance. Enter what you put in and what it is worth now to instantly see your return on investment as a percentage, plus your profit or loss.
ROI compares gain or loss with the original investment. It does not show how long the investment was held.
A visual summary that updates with your calculation.
Compare two scenarios and export the current calculation.
Save the current inputs and result as Scenario A or Scenario B.
Not saved yet.
Not saved yet.
Download the current inputs and result as a CSV file.
This calculator gives an instant estimate from the values entered above. Use the result as a planning starting point, then review the assumptions and limitations.
Enter the requested values using consistent units. Change one input at a time when comparing scenarios, and verify every value before using the result.
The estimate uses the values currently entered and the formula described on this page. Any fees, taxes, timing rules or personal circumstances not requested are excluded.
ROI compares the gain or loss from an investment with its original cost.
ROI = (final value − initial cost) ÷ initial cost × 100.
An investment of $1,000 that becomes $1,200 has a gain of $200 and an ROI of 20%.
A positive ROI indicates a gain and a negative ROI indicates a loss. ROI alone does not show how long the investment was held.
Taxes, fees, cash flows, inflation, risk and holding period are excluded unless you include them in the values. ROI is not a forecast or investment recommendation.
Method reference: Investor.gov: return on investment basics. Fynzo explains and implements the calculation independently; the linked organization does not endorse this website.
Reviewed by: Yasser Chahir, Fynzo editor. Last reviewed: July 31, 2026.
More finance calculators to help you plan.