Annuity Calculator
Find the periodic payment a principal can sustain.
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Practical Example
Formula: PMT = P × r / (1 − (1 + r)^−n) where P = principal, r = rate per period, n = periods. Example: $500,000 at 4% for 20 years ≈ $36,800/year.
Frequently Asked Questions
What is an annuity payment?
An annuity payment is a fixed amount paid at regular intervals (monthly, yearly) from a lump sum that earns interest over the payout period.
What's the difference between ordinary annuity and annuity due?
Ordinary annuities pay at the end of each period; annuities due pay at the beginning, which slightly increases their present and future value.
Are these projections guaranteed?
No — actual returns depend on the interest rate, fees, and provider; this is an estimate and does not include taxes.
What factors can affect my results?
Multiple factors influence financial calculations including interest rates, time periods, tax implications, fees, and inflation. Always consider these variables when planning and use conservative estimates for critical decisions.
How often should I recalculate?
Review your calculations whenever your financial situation changes significantly, or at least annually. Major life events like job changes, marriage, or market shifts warrant immediate recalculation.
Disclaimer: This calculator provides estimates for informational purposes only. Actual results may vary. Consult a qualified professional for personalized advice.