Compound interest calculator
Calculate compound interest: final value, interest earned and capital growth. Free calculator with monthly, quarterly and yearly compounding.
This ROI (Return on Investment) calculator computes the investment return percentage. Enter the investment amount, the total return received, and optionally the number of years to see your ROI, profit, and annualised return.
Profit = return - investment. ROI (%) = profit ÷ investment × 100. Annual ROI = ROI ÷ years (simplified). Return multiple = return ÷ investment. ROI does not account for the time value of money — always specify the investment period for context.
Investment: PLN 10,000, return after 2 years: PLN 14,000. Profit: PLN 14,000 - PLN 10,000 = PLN 4,000. ROI: PLN 4,000 ÷ PLN 10,000 × 100 = 40%. Annual ROI: 40% ÷ 2 = 20%. For every PLN 1 invested, PLN 0.40 profit was earned.
It depends on the investment type and risk. Stock market average is ~7–10% annually. Real estate typically 5–15%. A savings account in Poland currently offers 5–6%. Higher ROI usually means higher risk.
ROI is a simple ratio of profit to investment cost. IRR (Internal Rate of Return) accounts for the timing of cash flows using discounted cash flow analysis. IRR is more accurate for comparing investments with different durations.
No. This calculator computes nominal ROI. To get real (inflation-adjusted) ROI, subtract the inflation rate. With 40% nominal ROI and 10% inflation over 2 years, the real ROI is approximately 27%.
Return multiple (also called MOIC — Multiple on Invested Capital) shows how many times your investment was returned. A 2× multiple means you got back twice what you invested (100% ROI).
ROI measures total return from investment activity. Compound interest calculates growth assuming reinvestment of returns. For savings and deposits, use the compound interest calculator.
Yes. If the return is less than the investment, ROI is negative (a loss). For example, invest PLN 10,000, get back PLN 8,000: ROI = -20%.
Annual rental ROI = net annual rent ÷ total purchase cost × 100. Net rent = gross rent minus property tax, maintenance, management, and insurance costs.
ROIC (Return on Invested Capital) is a company finance metric measuring how efficiently a business uses all invested capital. ROI is broader and used for individual investments or projects.
Both. ROI gives a quick overview; NPV (Net Present Value) discounts future cash flows to present value, making it more accurate for multi-year projects. Use ROI for quick screening, NPV for final decisions.
Social ROI (SROI) measures the social and environmental impact of an investment relative to its cost. It is used in impact investing and social enterprise evaluation, not standard financial analysis.
The calculator uses a simplified ROI formula. It does not account for inflation, time value of money, or compound returns. For investment decisions, also consider NPV and IRR.
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