See how savings and investments grow with compound interest, monthly contributions and any compounding frequency, with a year-by-year breakdown.
The Compound Interest Calculator projects how savings or an investment will grow over time, factoring in the initial deposit, annual interest rate, chosen compounding frequency and any regular monthly contributions. It produces a year-by-year breakdown so you can see exactly how much of the final balance came from your own contributions versus interest earned along the way.
Because compounding frequency genuinely changes the outcome — daily compounding grows a balance faster than the same nominal rate compounded yearly — the calculator lets you choose yearly, half-yearly, quarterly, monthly or daily compounding to match a specific savings account, bond or investment product. It is useful for comparing savings products, planning retirement contributions, or simply understanding how much a habit of monthly deposits will be worth after a given number of years.
Comparing yearly against monthly or daily compounding on the same rate shows exactly how much difference the frequency itself makes to the final balance.
Adding a recurring monthly deposit models a realistic savings plan rather than only a single lump-sum investment.
The breakdown separates how much of the ending balance came from contributions versus interest, making the power of compounding visible rather than just a final number.
Changing the rate, frequency or contribution amount recalculates immediately, making it easy to compare several savings scenarios side by side.
Yearly, half-yearly, quarterly, monthly and daily compounding are all available. The frequency matters because interest earned in one period starts earning its own interest sooner with more frequent compounding, so the same nominal annual rate compounded daily produces a slightly higher effective return than compounded yearly.
Adding a monthly deposit models a realistic savings habit rather than assuming all money is invested at the start. The calculator adds each contribution at the point in the schedule it would occur and continues compounding on the growing balance from there.
Each row shows the balance at that point, the running total of contributions made, and the interest earned so far, which makes it clear that in the early years most growth comes from your own deposits, while in later years interest increasingly compounds on itself.
The calculator assumes a constant interest rate and consistent contributions throughout the period, which is a simplification — real investments fluctuate, and interest rates on savings accounts can change. Treat the output as an illustrative projection rather than a guaranteed outcome.
Yearly, half-yearly, quarterly, monthly and daily. Frequency matters: the same rate compounded monthly grows faster than compounded yearly.
Yes. Add a monthly contribution and the calculator compounds those deposits alongside your starting balance and shows the totals separately.
Yes. Compound Interest Calculator on Klipza is completely free with no account, no subscription and no watermark on your files, and there is no daily usage limit.
Processing happens locally in your browser wherever technically possible, so your files are not uploaded to a server, stored or shared with third parties.
Yes. It is fully responsive and runs in any modern browser on Android, iPhone, iPad, Windows and macOS — nothing to install.