How to use this calculator
Project how money may grow with compound interest and regular contributions.
How the calculation works
- Enter starting principal.
- Set annual rate and term.
- Optionally add a monthly contribution.
Formula
FV = P(1 + r/n)^(nt)
Example
Estimate 10 years of growth from $1,000 plus monthly contributions.
Understanding your result
Use the output as a practical starting point, then review it before using it in an important workflow.
Assumptions and limitations
- This is planning math, not investment advice.
- Actual returns vary and may be negative.
Frequently asked questions
Does this require an account?
No. The core tool works without creating a Tool2Do account.
Is my input included in share links or analytics?
No. Tool2Do share actions use the tool page URL and safe metadata, not private values or uploaded files.