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Investment Calculator

Calculate investment growth with compound interest and regular contributions

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Start by entering initial investment ($) and then complete the remaining inputs from left to right.
Need clarification? Use each field hint below for what each input expects.
Results update after each field change.

Inputs

Set assumptions

Live results

Initial Investment ($)

Enter a realistic base value for this calculation input.

Monthly Contribution ($)

Use full numbers for timeline values unless the tool explicitly supports decimals.

Investment Period (Years)

Enter a realistic base value for this calculation input.

Expected Return (%) annual

Compounding Frequency

Choose the cadence that matches how often the value repeats.

Result

Ready when values are complete

Fill the required fields to see the result update here.

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Recent inputs

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What this tool does

Investment Calculator helps you calculate investment growth with compound interest and regular contributions.

What you get

Investment Calculator produces a direct output in this page and keeps all processing on your device, with nothing uploaded to our servers.

If this tool misbehaves, share a quick summary so we can investigate. We include the tool URL automatically—no need to copy and paste.