Compound interest calculator
Calculate compound interest: final value, interest earned and capital growth. Free calculator with monthly, quarterly and yearly compounding.
Calculator · Personal finance
Set your savings target, enter current savings and a monthly contribution. The calculator tells you how long it takes or how much you need to save each month.
At 0% rate: monthly = (goal - current) / months. With interest we use the PMT formula or solve for n using the future value annuity formula.
Goal PLN 20,000, no savings yet, PLN 500/month at 3% p.a.: approx. 35 months (3 years). Total contributions: PLN 17,500, interest: PLN 2,500.
Indicative result
Calculate compound interest: final value, interest earned and capital growth. Free calculator with monthly, quarterly and yearly compounding.
Calculate how much you need in your emergency fund and how long it will take to build it. 3, 6 or 9 months of expenses. Free online financial safety net calculator 2026.
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