How this calculator works
Future value uses A = P(1 + r/n)^(n×t), where P is principal, r is the nominal annual rate, n is compounding periods per year and t is time in years.
Formula
A = P(1 + r/n)^(nt)Future value with a fixed nominal annual rate compounded n times per year.
Worked example
$10,000 at 5% for 10 years, compounded monthly is a verified test case used by the calculation engine.
Assumptions and limitations
- The nominal annual rate and compounding frequency remain constant.
- No additional deposits or withdrawals occur.
- Taxes, fees, inflation and institution-specific day-count or rounding rules are excluded.
Methodology & sources
This calculator uses deterministic, versioned calculation logic. The formula and verified examples above are part of the calculation definition used by CalcuMint.
Frequently asked questions
How is compound interest different from simple interest?
Compound interest adds prior interest to the balance before later interest is calculated; simple interest applies only to the original principal.
Does this calculator predict an investment return?
No. It applies the rate you enter as a deterministic scenario and does not forecast market performance.