Calculate investment return

How to use the investment return calculator

1. Enter the initial amount and the investment's final value.
2. Add the total of later contributions.
3. Enter the duration in years if you want the annualized return.

Investment return formula

Gain = final value − (initial + contributions) · Return = gain / total invested × 100

Adding contributions avoids mistaking money you simply added for a gain.

Investment return example

You invested €10,000 and added €1,000 more; it's now worth €13,500. The gain is €2,500, a 22.73% return (about 7.06% a year over 3 years).

Illustrative example with the data shown; not a guaranteed outcome.

Assumptions and limitations

• Contributions are added to invested capital.
• The annualized return is approximate: it treats all money invested as present from the start.
• Taxes are not included.

Frequently asked questions