BYTETOOLS

ROI Calculator

Calculate return on investment, net profit and annualized ROI from the amount invested and returned. Compare investments over any holding period.

$3,000.00
Net profit
30%
ROI
9.14%
Annualized ROI

Summary

On an investment of $10,000.00, your final value is $13,000.00 — a net profit of $3,000.00 and an ROI of 30%.

Estimates only, not financial advice. Annualized ROI assumes a single lump-sum investment.

  • ROI percentage and net profit from simple inputs
  • Enter final value or net gain, whichever you have
  • Optional annualized ROI over a holding period
  • Handles losses with negative gains
  • Any currency symbol, computed locally
  • Private and free; estimates only, not advice

How to use the ROI Calculator

  1. 1

    Pick your currency and choose an input mode.

  2. 2

    Enter the amount invested.

  3. 3

    Enter either the amount returned or the net gain.

  4. 4

    Optionally enter the holding period in years.

  5. 5

    Read the net profit, ROI and annualized ROI.

About the ROI Calculator

The ByteTools ROI Calculator measures how profitable an investment is relative to its cost. Enter the amount invested and either the amount returned or the net gain, and it shows the net profit and the return on investment as a percentage. Add a holding period to get the annualized ROI.

It is useful for investors, marketers and business owners comparing opportunities on an equal footing. Because ROI ignores time by default, the optional annualized figure lets you fairly compare investments held for different lengths.

All math runs in your browser with nothing uploaded. Results are estimates for comparison only and are not financial advice; real returns depend on fees, taxes and timing.

Frequently asked questions

How is ROI calculated?

ROI is the net profit divided by the amount invested, expressed as a percentage: ROI = (return − investment) ÷ investment × 100. A $10,000 investment that returns $13,000 has a $3,000 profit and a 30% ROI.

What is annualized ROI and why does it matter?

Annualized ROI converts a total return into an average yearly rate using (final ÷ invested)^(1 ÷ years) − 1. It lets you compare investments held for different periods fairly, since a 30% return over one year is far better than 30% over five years.

Can ROI be negative?

Yes. If the return is less than the amount invested, the net profit is negative and so is the ROI, indicating a loss. Enter a negative net gain, or a returned amount below the investment, to see it.

What does ROI leave out?

Basic ROI does not account for taxes, fees, inflation or the exact timing of cash flows. For a single lump-sum comparison it works well, but for complex or ongoing investments you may also want to look at measures like IRR.

Are my investment figures private?

Yes. Everything is calculated in your browser and nothing is sent to a server, so your investment amounts and returns stay completely private.

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