Savings & Investing

Return on Investment (ROI) Calculator

Measure an investment’s gain or loss, total return on investment, and annualized return from the amount invested and amount returned. Enter an investment duration directly or use start and end dates for a time-adjusted comparison.

Amount Invested

Amount Returned

Investment Time

There was an error with your calculation.

Result

Return on Investment (ROI)	40.00%
Investment Gain	$4,000.00
Annualized ROI	25.15%
Investment Length	1.5 years

Profit

Invested

Input parameters

Amount Invested: Initial investment cost.
Amount Returned: Ending proceeds or value received.
Investment Time: Selected method for entering investment duration.
Investment Length: Time the capital remains invested.
Start Date: The date from which the schedule or measurement begins.
End Date: The date on which the schedule or measurement ends.

Understanding the results

Investment gain: Return above or below the original investment.
ROI: Gain as a percentage of invested capital.
Annualized ROI: Equivalent compound return per year.

Calculation principle

Simple ROI compares gain with cost, while annualized ROI converts the total growth ratio to an equivalent yearly compound rate.

Read and validate the entered values.
Convert percentages and time periods into compatible units.
Apply the formulas below and present the calculated results.

Formulas

Gain Gain = Returned − Invested

ROI ROI % = Gain / Invested × 100

Annualized ROI Annualized % = ((Returned / Invested)^(1 / years) − 1) × 100

Symbols refer to the corresponding input and result labels shown above.

How to use this calculator

Enter your figures, choose any available options, and select Calculate. You can change the inputs as often as you like to compare scenarios.

Planning note

Results are estimates for education and planning. Taxes, lender rules, fees, and investment returns can vary, so verify important decisions with a qualified professional.