Beta Factor tools · For individuals

Compounding
calculator.

How regular yearly contributions can grow when returns are reinvested. Change an input and see the curve respond.

EDUCATIONAL ILLUSTRATION · NOT ADVICE
INTERACTIVE ILLUSTRATIONAdjust the assumptions

Assumes contributions are made at the end of each year and returns compound annually.

ILLUSTRATIVE FUTURE VALUE–
Total contributions–
Illustrative growth–
Illustrative valueContributions
Illustration, not a forecast. Actual returns are variable and not guaranteed. Fees, taxes, inflation, and periods of loss are not included.

This calculator shows the mathematics of compounding, not a prediction. The related article explains the idea in full — including where a smooth curve stops looking like real life.

Assumptions & limits
  • Contributions are made at the end of each year.
  • The rate of return stays constant — real returns vary from year to year.
  • Fees, taxes, and inflation are not included.

Every Beta Factor tool is an educational illustration, not financial advice.