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ROI Checker

Calculate return on investment (ROI) from an initial investment and the value you got back. Add extra costs (fees, shipping, taxes) to get a cleaner ROI, plus an optional annualized ROI if you know the holding period.

Category: Finance · URL: /tools/roi-checker.html
ROI formula: ROI % = (Net Profit ÷ Investment) × 100
Net Profit: (Final Value − Extra Costs) − Investment
Enter values and click Calculate ROI.
Privacy: runs locally in your browser. No uploads, no tracking scripts.

How to use

Use the ROI checker to compute profit, ROI %, and (optionally) annualized ROI.

  1. Enter your initial investment.
  2. Enter your final value / proceeds (what you got back).
  3. Add extra costs (fees, shipping, ads, taxes) if needed.
  4. Optional: add a period (days/months/years) to see annualized ROI.
  5. Click Calculate ROI.
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Secondary intents covered: Compute ROI % from investment and final value, Include extra costs/fees to get net ROI, Calculate profit (net gain) alongside ROI, Estimate annualized ROI from a time period, Compare two investments by return multiple, Validate ROI math and avoid common formula mistakes, Quickly copy results for a spreadsheet or report, Check if an investment resulted in a loss (negative ROI), Convert days/months into years for annualized return

FAQ

What is ROI?

ROI (return on investment) measures profit relative to the amount invested, expressed as a percentage.

How do you calculate ROI percentage?

ROI % = (Net Profit ÷ Investment) × 100, where Net Profit = (Final Value − Extra Costs) − Investment.

What counts as “extra costs”?

Any costs tied to getting the return: fees, shipping, commissions, ad spend, taxes, or maintenance—entered as a single total.

Can ROI be negative?

Yes. If your net proceeds are less than your investment, profit is negative and ROI is negative.

What is annualized ROI and when should I use it?

Annualized ROI estimates a per-year return based on the holding period, useful for comparing investments held for different lengths of time.

Is annualized ROI the same as CAGR?

This tool uses a CAGR-like method: (Ending/Beginning)^(1/years) − 1, which assumes compounding over the period.

Why does annualized ROI show as “—” sometimes?

If you don’t enter a valid period, or if the net proceeds are not positive, the annualized calculation is not shown.