Compound Growth Calculator

See what small, consistent investing looks like over time — and why starting matters more than the amount.

Groundwork Press · When Money Feels Impossible
A note before you begin: This calculator is for illustration only — to show the principle of compounding growth. It is not investment advice. Real investment returns vary and are not guaranteed. Before investing, consider speaking with a regulated financial adviser.

Your investment details

£
Start with what feels genuinely manageable — even a small amount shows the principle
% per year
The long-term average for a globally diversified index fund has historically been around 7–8% annually, before inflation. This is illustrative — past performance does not guarantee future returns.
20 years
1 year 40 years

The compound effect over time

Final value
—
after — years
Growth
—
returns on top of contributions
You put in
—
your total contributions
Money made money
—
of final value from growth
Total value   Your contributions