📈 Investment ROI Calculator

Measure net gain, total ROI, and annualized investment performance including additional costs.

Try the calculator

The values below are a working example. Change any field to recalculate instantly in your browser.

Formatting only — amounts are not converted using exchange rates.
RETURN ON INVESTMENT28.57%
Net Gain / Loss$3,000.00
Total Invested$10,500.00
Annualized Return8.74%
Final Value$13,500.00

Returns do not include taxes unless entered as additional costs.

Formula & Mathematical Logic

ROI = (Final Value − Total Invested) / Total Invested × 100

Total invested includes the initial investment plus additional costs. Annualized return converts total growth into an equivalent yearly rate. Calculations run locally in your browser.

Worked Example

Investing $10,000 plus $500 in costs and receiving $13,500 produces a net gain of $3,000 and ROI of 28.57%.

Frequently Asked Questions

How is this result calculated?

Subtract all invested amounts and costs from the final value, then divide the gain or loss by total invested capital.

Does Calcixa upload my inputs?

No. Inputs and results remain in your browser and are not sent to a Calcixa server.

CALCIXA PRACTICAL GUIDE

How to use the Investment ROI Calculator

Return on investment (ROI) compares net gain or loss with the total capital committed. Including transaction or project costs makes the comparison more meaningful than using purchase price alone, while annualized ROI helps compare holding periods of different lengths.

ROI is a summary ratio, not a complete risk measure. It does not by itself describe cash-flow timing, volatility, liquidity, inflation, taxes, financing, or the probability of achieving the stated final value.

Step-by-step

  1. Enter the original investment and all additional costs.
  2. Enter the realized or estimated final value.
  3. Use the actual holding period for an annualized comparison.
  4. Compare ROI with risk, cash-flow timing, inflation, taxes, and realistic alternatives before deciding.

How to read the result

  • Net gain subtracts all invested capital and costs from final value.
  • Total ROI expresses that gain relative to total invested capital.
  • Annualized ROI converts multi-year growth into an equivalent compound yearly rate under the model.

Common mistakes to avoid

  • Leaving out fees, maintenance, or acquisition costs.
  • Comparing total ROI across investments held for different periods.
  • Using ROI alone to describe risk or future performance.

Important: This educational estimate is not financial, investment, tax, or lending advice.

More questions about Investment ROI Calculator

Can ROI be negative?

Yes. A final value below total invested capital produces a loss and negative ROI.

Is annualized ROI an average?

It is a compound-equivalent annual rate, not a simple arithmetic average of yearly returns.

Does the calculator handle interim cash flows?

No. Multiple dated deposits and withdrawals require an IRR or XIRR calculation.

Sources and methodology

Calcixa explains the model, assumptions, and limitations so you can verify the result. See our calculation and tool methodology for rounding, privacy, testing, and correction practices.

Maintained by the Calcixa product team. This page was last updated on 7 September 2026.