Skip to content

How to Use Investment Calculator

Project how an investment grows with a starting amount, monthly contributions and compound returns, with a year-by-year table and inflation-adjusted value.

About this tool

Project how an investment grows with regular contributions and compound returns.

How to use Investment Calculator

  1. Enter the starting amount and monthly contribution.
  2. Enter the expected return, years, compounding and optional inflation.
  3. Read the final value and the yearly growth table.

Worked example

10,000 plus 500 a month at 7% for 20 years grows to about 300,000, of which 130,000 is your money and the rest is growth.

What return should I use?

Use a cautious long-run average for your mix of investments; past returns do not guarantee future ones.

Why add inflation?

It shows what the future amount is worth in today’s money.

Put this guide into practice

  • Investment Calculator — Project how an investment grows with regular contributions and compound returns.

Explore Financial Calculators · More practical guides

Accessibility Menu

Personalize your experience. Open with Ctrl+U (Option+U on Mac). Preferences stay in this browser when storage is available.

Move / Hide Widget

Restore at any time with Ctrl+U (Option+U on Mac).

Accessibility statement and help