Savings Calculator
Project how much your savings will be worth over time. Enter an initial deposit, regular contributions, interest rate and term — the calculator reports the final balance and the split between money you put in and interest earned.
Enter savings details
Enter savings details and press Project savings.
How savings grow
Balance = P · (1 + r/n)^(n·t) + M · [ ((1 + r/n)^(n·t) − 1) / (r/n) ]
Where P is the initial deposit, M is the monthly contribution, r is the annual rate as a decimal, n is compounding periods per year, and t is the term in years.
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Frequently asked questions
The more often interest is added, the sooner it starts earning interest itself. For a 4.5% account over 10 years, monthly compounding produces a slightly higher final balance than annual compounding — the difference grows with rate and time. Most UK savings accounts compound monthly or daily.
For short-term goals (2–5 years) inflation is usually minor. For long-term goals (10+ years) it matters a lot — £100,000 in 20 years won't buy what £100,000 buys today. Enter an inflation rate to see the "real value" in today's money.