Investment ROI Calculator

Calculate return on investment

This ROI calculator compares what you put in with what it is worth now. Enter two numbers and it shows your net profit or loss, ROI percentage and gain multiple. Add a time period and it also works out the annualized ROI (compound annual growth rate, or CAGR), so investments held for different lengths of time can be compared fairly.

How to use it

1. Enter the initial investment — the total amount you put in.
2. Enter the final value — what the investment is worth now or what you sold it for.
3. Optionally enter the time period in years. Decimals work, such as 0.5 for six months.
4. Read the net profit, ROI, gain multiple, annualized ROI and the growth bar chart.

ROI formulas

• Net profit = final value − initial investment
• ROI % = net profit ÷ initial investment × 100
• Gain multiple = final value ÷ initial investment
• Annualized ROI = (final ÷ initial) ^ (1 ÷ years) − 1, shown as a percentage

Example: $10,000 grows to $15,000 over 5 years. Net profit = $5,000, ROI = 5,000 ÷ 10,000 × 100 = 50%, gain multiple = 1.50x, and annualized ROI = 1.5 ^ 0.2 − 1 = 8.45% per year.

Why annualized ROI matters

The same 50% total return means very different things depending on how long it took:

Years to grow 10,000 → 15,000	Total ROI	Annualized ROI
1	50%	50.00%
2	50%	22.47%
5	50%	8.45%
10	50%	4.14%

Frequently asked questions

Does it include fees, taxes or extra deposits?

No. It uses only the two values you enter. Add fees to the initial investment and subtract costs from the final value for a truer figure. Regular contributions are not modelled.

Can I use another currency?

Yes. The labels show $, but the maths is the same for any currency.

Can it show a total loss?

A loss is shown in red when the final value is below the initial investment. The final value must be greater than zero for a result to appear.