Calculate ROI

Compare your total gain or loss with the amount invested.

On your device · No account

Privacy details

Calculate ROI processes your input in this browser. Inputs and results are excluded from analytics. Recent tools save tool names, visit counts and last-visit times. Saved tools store only their names. Draft saving is optional and stays on this device; delete saved text with the draft controls. Loading text from a URL is optional and contacts that server; its URL and your IP address are visible to the server. An optional “Use in” action keeps a handoff in this tab. The next tool removes it on arrival and ignores it if more than a minute has passed.

Copy link includes the inputs you choose to share in the address. Anyone with that link can reopen them. Files and generated results are excluded. Password and key tools share settings only.

Amount invested

Total amount returned

Answer

…

ROI = (amount returned − amount invested) ÷ amount invested × 100.

More results

Precision and calculation record

Decimal places in numeric results and text downloads

Rounding changes displayed numbers, not the calculation. Text, fractions, matrices and CSV schedules keep their own formatting. Automatic keeps up to 12 significant digits, with money shown to cents where applicable.

Step-by-step calculation

Inputs are substituted below. Each line evaluates the next operation; intermediate values are displayed to 12 significant digits while the calculation uses full precision.

Saved scenario

Save the current answer, then change an input to compare. This clears when you leave.

Formula and assumptions

Returned amount includes the recovered initial investment. This is total return, not annualized return. Include all costs in the investment.

Automatic precision shows money to two decimal places and other numbers to 12 significant digits. Thousands separators such as 1,000 are accepted; use a dot for decimals.

Scratch calculator

Check another calculation

Use +, −, ×, ÷, parentheses and %. A percentage is divided by 100. This does not change the main tool.

Reset reloads the tool with its starting values and releases open files and device controls. Saved drafts stay on this device until you delete them.

Links include your inputs and settings. Anyone with the link can see them, so leave out private text. Files and generated results are left out; random draws run again.

Keyboard shortcuts

Updated 2026-09-26

Using Calculate ROI

ROI = (amount returned − amount invested) ÷ amount invested × 100.

Returned amount includes the recovered initial investment. This is total return, not annualized return. Include all costs in the investment.

Next: Stock profit calculator

A worked example

With amount invested = 1000, total amount returned = 1250, the return on investment (%) is 25.

Next: Return on equity calculator

Before you use the result

Returned amount includes the recovered initial investment. This is total return, not annualized return. Include all costs in the investment. Calculations keep full browser-number precision. Money amounts are displayed to two decimal places; other results use up to 12 significant digits. Very large values may lose precision.

Example results for amount invested

These examples use Total amount returned: 1250. They are reference calculations, not recommended settings.

Amount invested	Return on investment (%)
500	150
1000	25
2000	-37.5

Cite this page

Citation style

ToolOctopus. “Calculate ROI.” Updated 2026-09-26. https://tooloctopus.com/roi-calculator.

Add an access date if your instructions require one.

Citation formatting uses citeproc-js by Frank Bennett and Citation Style Language styles. Licence and source code.