Starting savings
This is the balance you already have before new deposits and interest.
Estimated savings—
Enter your details to calculate.
Estimate only. Interest rates can change and this does not account for tax, fees or inflation.
Monthly savings growth calculator
Estimate how a savings account could grow from an opening balance, regular monthly savings, an assumed AER and a chosen time period.
Monthly saving
Consistent deposits can be just as important as the interest rate over time.
Interest earned
This is the estimated growth generated by the balance rather than by your own deposits.
Monthly savings example
Start with £5,000, add £250 each month and enter the savings rate you want to model. Change the monthly deposit, rate or saving period to compare different scenarios.
This is a projection, not a guaranteed return. Savings rates can change and tax, fees and inflation are not included.
Frequently asked questions
Does this assume the rate stays the same?
Yes. It is a projection based on the rate entered remaining constant.
Can I use it for investments?
You can model a hypothetical return, but investments are not guaranteed and can lose value.
Why do regular deposits matter?
They increase the amount that can earn interest or returns over time.
Built for quick, transparent estimates. See how our calculators work and check page-specific assumptions before relying on a result.