Millionaire calculator: How long would it take to save a million?

Use our calculator to find out how long it would take you to save up a million pounds based on the interest on your savings account.

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By

Matthew Boyle

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Fact checked

We’ve built a calculator that determines how long it’ll take you to save a million pounds, based on how much you currently have saved, how much you plan to save each month and the interest you hope to gain on your investments or via the interest rate on your savings account. Try it out to see if you could become a millionaire any time soon.

Millionaire Calculator

Find out how long it would take to become a millionaire!

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Best ways to budget to reach a million

According to our research into savings, the average adult in the UK had £16,067 in savings in 2025. Based on an interest rate of 2.62%, which is the average instant acacess savings rate in January 2025, the average Brit would save up to a million pounds by 2114 (so less than 100 years!). However, this does assume you never spend any of these savings on any big life purchases, such as buying a house or having a wedding.

For expert tips on how to boost your savings, check out our video below:

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Methodology

Finder analysts built the calculator by using a mathematical formula to calculate whether users will be able to save up to a million pounds within the next 200 years. This formula relies on the interest rate on users’ saving accounts, their monthly savings and their current savings amount.

Click here for more research. For all media enquiries, please contact –

Matt Mckenna
UK Head of Communications
T: +44 20 8191 8806

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Publisher

Matthew Boyle is a banking and mortgages publisher at Finder. He has a 7-year history of publishing helpful guides to assist consumers in making better decisions. In his spare time, you will find him walking in the Norfolk countryside admiring the local wildlife. See full bio

Matthew's expertise
Matthew has written 214 Finder guides across topics including:
  • Helping first-time buyers apply for a mortgage
  • Comparing bank accounts and highlighting useful features
  • Publishing easy-to-understand guides

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