Model your £1m path

Use your current invested amount, monthly contribution and an illustrative annual return to see how time and consistency could shape your portfolio. The calculation is illustrative, not a forecast or personal financial advice.

Free, private and illustrative

£1m Path Calculator

See how your portfolio could develop with regular investing. Calculations run in your browser only. Nothing is stored or sent to RichardRalph.com.

Your assumptions

The amount already invested today.
Regular monthly investing, assumed at the end of each month.
Before inflation and fees. Actual returns are uncertain.
Use £1m, or set a target that matters to you.

Your projected path

Projected portfolio value
£0

You contribute
£0
Illustrative growth
£0

Growth over time

TodayYear 10Year 20

Year-by-year breakdown

YearStartingContributionsGrowthEnd balance

Assumes a constant annual return, compounded monthly, and contributions at the end of each month. It excludes fees, tax, inflation and market volatility. It is for education only, not a prediction or personal financial advice.

How to use it

Start with the value you have invested today, then use a realistic contribution rate you think you can sustain. A higher assumed return makes the illustration look better, but no return is guaranteed. The most useful output is often the comparison between starting now and delaying.

For more context on the choices behind the numbers, explore Financial Independence or see the current portfolio.