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ROI Calculator illustration

ROI Calculator

Return on investment from cost and final value.

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How to use ROI Calculator

follow along with the steps below

Step 1 illustration1

Enter your numbers in the fields.

Step 2 illustration2

Results update as you type, or press Calculate.

Step 3 illustration3

Change the values to compare different scenarios.

Calculator tools illustration
Calculator tools
Private tools that run in your browser
Private in your browser
Laptop and phone: works on any device
Works on any device

About ROI Calculator

ROI Calculator is a free online tool from Supreme Pro. Return on investment from cost and final value. It runs in your browser, so there is nothing to install and no account to create. Calculators update as you type, so you can explore numbers freely.

How it is calculated

ROI % = (final value − amount invested) ÷ amount invested × 100

Worked example

With Amount invested = 1000, Final value = 1500, the result is: Profit = 500; ROI % = 50.

Common uses

  • Get a fast answer without opening a spreadsheet
  • Compare different scenarios by changing one number at a time
  • Double-check figures before you make a decision

Tips for best results

  • Enter realistic values and change one field at a time
  • Treat finance and health results as estimates, not professional advice
  • Use consistent units, for example all amounts in the same currency

Features

  • Free, with no account needed
  • Private: runs entirely on your device
  • Instant results, no waiting
  • Works on phones, tablets and computers

Frequently Asked Questions about ROI Calculator

Quick answers about using ROI Calculator.

What is the ROI Calculator?

The ROI Calculator is a free online tool from Supreme Pro. Return on investment from cost and final value.

How do I use the ROI Calculator?

Enter your numbers in the fields. Results update as you type, or press Calculate. Change the values to compare different scenarios.

Is the ROI Calculator free?

Yes. It is free to use and needs no account or sign-up.

Is my data safe?

Yes. Everything runs in your browser, so your input stays on your own device and is not uploaded to our servers.

Does the ROI Calculator work on mobile?

Yes. The page is responsive and works on phones, tablets and computers.

How accurate are the results?

The maths is exact for the numbers you enter. Treat finance and health results as estimates and check important decisions with a professional.

What other tools can I use after the ROI Calculator?

You can try Profit Margin Calculator, VAT / GST Calculator or Salary Calculator. All of them are free and run in your browser. You can also browse every one of our calculators.

Do I need an account to use the ROI Calculator?

No. The ROI Calculator works without an account or sign-up. Open the page, use the tool and download or copy the result.

Which browsers and devices work with the ROI Calculator?

Current versions of Chrome, Edge, Firefox and Safari on Windows, macOS, Android and iOS. Keep your browser up to date for the best results.

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Why people choose Supreme Pro

Fast results
Fast resultsTools open instantly and finish in seconds.
Private by design
Private by designFiles stay in your browser and are never uploaded.
Works everywhere
Works everywhereUse it on a phone, tablet or computer.
Free forever
Free foreverNo sign-up, no watermark, no hidden fees.