Return on Investment Calculator

Return on Investment Calculator

Work out your net profit, total ROI, and annualized ROI for any investment — property, stocks, a business project, or anything else where money goes in and comes back out.

Calculate Your Return on Investment

Enter what you put in, what it’s worth now (or what you sold it for), and any extra costs along the way to see your profit and ROI.

ROI Breakdown

See your net profit, total ROI, and annualized return.

0.00%
Total ROI
0.00%
Annualized ROI
Total Invested (incl. costs): £0.00
Net Profit: £0.00
Return Multiple: 0.00x
*Figures are estimates based on the values entered and don’t account for tax, inflation, or the risk profile of the investment.
⚠️ Important Note: ROI alone doesn’t tell you how risky an investment was, or how inflation affected the real value of your return. Always weigh ROI alongside the level of risk taken and the length of time your money was tied up.
1

Total Amount Invested

We add your initial investment to any additional costs, such as fees, maintenance, or improvements, to find your true total outlay.

2

Net Profit

We subtract your total amount invested from the final value to find your net profit — or loss, if the figure comes out negative.

3

Total ROI

Net profit is divided by your total amount invested and expressed as a percentage, giving your return over the whole holding period.

4

Annualize the Return

We spread your total ROI evenly across your holding period in years, so you can compare it fairly against other investments and timeframes.

ROI Calculator FAQ

Answers to the most frequently asked questions about calculating and interpreting return on investment.

ROI, or Return on Investment, measures how much profit or loss an investment generates relative to what was originally put in. It’s expressed as a percentage, making it easy to compare the performance of very different investments side by side.

ROI is calculated as net profit divided by the initial investment, multiplied by 100. Net profit is the final value of the investment minus the initial amount invested and any additional costs, such as fees or maintenance, incurred along the way.

What counts as good depends heavily on the type of investment, the time period involved, and the level of risk taken. A short-term flip and a decade-long index fund holding aren’t directly comparable on total ROI alone, which is why annualized ROI is often more useful for judging performance.

Annualized ROI spreads your total return evenly across each year you held the investment, giving a like-for-like yearly growth rate. It matters because a 50% ROI over one year is a very different result to a 50% ROI achieved over ten years, even though the total return figure is identical.

No. A basic ROI calculation only measures raw financial return and doesn’t adjust for the risk taken to achieve it, the effect of inflation on purchasing power, or the impact of tax. It’s a useful starting point, but should be weighed alongside these other factors before comparing investments.

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