Free ROI Calculator

Measure the profitability of your investments with our free ROI calculator. Perfect for evaluating marketing campaigns, business projects, or personal investments.

ROI Calculator

Calculate your return on investment

$
$
ROI = (Final - Initial) / Initial × 100
0%
Return on Investment
Profit / Loss Amount $0.00

Work Steps

Step 1
Enter your age in days, months, and years in the text box.
Step 2
You will see your current age.

How to Calculate ROI

Initial Cost
Enter the total amount you invested.
Net Profit
Input the revenue generated minus the initial cost.
Calculate
Click "Calculate" to see your ROI percentage.

Frequently Asked Questions

What is ROI Calculator and what is it used for?

ROI commonly means (gain from investment − investment cost) ÷ investment cost × 100.

Enter the investment amount and the return or gain according to the calculator’s definitions.

Be clear about whether revenue, profit, cash flow, fees, or another measure is being treated as the return.

ROI is a ratio and does not automatically account for time. Two investments with the same ROI can have very different durations.

Use it to compare campaigns, projects, purchases, or investments when the inputs are measured consistently.

Different ROI results often come from different definitions of cost and return, inclusion of fees, or different time periods.