Compound interest · compounding periods
Compound interest · compounding periods: use principal, nominal annual interest, years. Review the formula, worked example and calculation steps.
Inputs
Use the units shown—
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Formula & explanation
A = P(1 + r/(100n))^(nt)
Variables & units
- Principal
- Numeric value · minimum 0, maximum 1000000000000
- Nominal annual interest
- % · minimum 0, maximum 100
- Years
- years · minimum 0, maximum 100
- Compounding periods per year
- Numeric value · minimum 1, maximum 366
Worked example
1,000 at 12% nominal compounded monthly for 1 year grows to 1,126.82503.
Assumptions
Fixed rate, no contributions, taxes or fees. Fractional years use the same mathematical compounding model.
Formula version 1.0.0. JavaScript floating-point arithmetic applies. Results display up to 6 decimal places; stored values retain available precision. Use the units shown.
Practice with an example
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