Free tool
Savings interest calculator
See how a starting pot plus monthly deposits compound at a given AER — then compare rates in our best savings accounts guide.
£5,000
£200
4.5%
5 yrs
Assumes AER compounds monthly and deposits arrive at month-end. Real accounts may pay interest differently — check the provider's terms.
Final balance
£19,629
You put in
£17,000
Interest earned
£2,629
Year 1Year 5
Deposits Interest