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Business Finance Calculators

ROI Calculator

Calculate return on investment, profit and annualised ROI from the amount invested, amount returned and holding period.

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The tool

Enter your numbers below. Results update as you type, and nothing leaves your browser.

Everything you enter stays on your own machine. Nothing is sent to us or to anyone else, which you can confirm in your browser network tab.

What people use it for

  • Comparing investment options
  • Justifying a project to management
  • Evaluating a marketing campaign
  • Reviewing past investments

About this tool

What the ROI Calculator does

Return on investment (ROI) is the gain on an investment divided by its cost. Because a 50% return over one year is far better than 50% over ten, this calculator also annualises the result so investments of different lengths can be compared fairly.

Formula

  • ROI = (amount returned − amount invested) ÷ amount invested × 100
  • Annualised ROI = (returned ÷ invested)^(1 ÷ years) − 1

Worked example

Using the starting values in the calculator above:

Input Value
Amount invested $10,000
Amount returned $14,500
Holding period 2.5 years
Result Value
ROI 45.0%
Annualised ROI 16.0%
Net gain $4,500
Money multiple 1.45x

How to read the result

ROI ignores timing within the period. For investments with several cash flows, use the IRR calculator instead.

Include all costs in the amount invested, such as fees, time and setup, or ROI will look better than it is.

Related calculators

Browse every calculator in Business Finance Calculators, or talk to us about growth marketing for your business.

Questions

Questions about this tool

The things clients actually want to know — costs, timelines, ownership and what happens after launch.

Subtract the cost of the investment from what it returned, divide by the cost and multiply by 100.

The equivalent yearly compound return, which lets you compare investments held for different lengths of time.

One that beats the return on the next best alternative with similar risk.

Free strategy session

Let’s build something worth finding.

Tell us where you want the business to be in twelve months. We will come back with a costed plan, a realistic timeline, and the numbers we expect to move — no obligation, no jargon.

  • 30-minute call, no pitch deck
  • Fixed-price proposal in 48 hours
  • You own everything we build

Talk to a developer

Not a sales team

Response time
Within 1 business hour
Where we work
UK, USA & the Gulf
Contracts
No lock-in, monthly rolling
Working since
2023
infobestwebdeveloper.org

Free strategy session

Let’s build something worth finding.

Tell us where you want the business to be in twelve months. We will come back with a costed plan, a realistic timeline, and the numbers we expect to move — no obligation, no jargon.

  • 30-minute call, no pitch deck
  • Fixed-price proposal in 48 hours
  • You own everything we build

Talk to a developer

Not a sales team

Response time
Within 1 business hour
Where we work
UK, USA & the Gulf
Contracts
No lock-in, monthly rolling
Working since
2023
infobestwebdeveloper.org
Free consultation

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