Calculator Tools

Investment Calculator

Grow a starting principal with optional monthly contributions.

Private when possible
No account required

Preparing tool…

About this tool

Investment Calculator estimates future value from a starting amount, assumed annual return and extras.

How to use

Enter starting principal.
Enter expected annual return.
Enter years and optional monthly add.
Review future value and gain.

Features

Principal + contributions
Gain vs contributed
Monthly model
Planning aid

Common use cases

Everyday planning
Study checks
Quick estimates

Supported formats

Privacy

This tool processes data in your browser. Content is not uploaded to our servers unless a feature explicitly requires a network request.

Frequently asked questions

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