Annuity Calculator
Calculates payout amounts and growth of an annuity over a chosen period.

What Annuity Calculator does
An annuity calculator that lets users model the future value of an annuity by inputting an initial investment, interest rate, withdrawal amount, and duration. It projects how long funds might last and what the eventual balance could be, supporting both annuity due and immediate annuity options to help investors forecast retirement income or understand how regular contributions grow over time. The tool is designed for individuals planning retirement income, financial advisors, and anyone evaluating structured payout options. Bankrate’s version stands out for its integration within a broader suite of financial calculators, offering a clean, grid-based interface that groups annuity tools alongside savings, CD, and retirement planners. While other free calculators focus solely on annuity math, Bankrate’s version provides contextual explanations of variables like interest rate and duration, and allows users to switch between immediate and due annuity types within the same workflow, making it easier to compare scenarios without leaving the page.
How to use the Bankrate Calculators Annuity Calculator
- 1
Enter your initial investment amount or starting principal in the designated field.
- 2
Input the expected annual interest rate or rate of return to apply to the annuity growth.
- 3
Specify the withdrawal amount and frequency (monthly or annual) you plan to take or contribute.
- 4
Set the duration (number of years) for the annuity to run, then select either an immediate or annuity due option to see the projected balance and payout timeline.
- 5
Review the output, which displays the estimated future value, remaining balance, and how long the funds are expected to last under the chosen assumptions.
Best for
Retirement planners and financial advisors who need a quick, visual way to compare how different interest rates, contribution amounts, and annuity types affect long-term income streams.
Limitations
- Results are based on fixed interest rate assumptions and do not account for market volatility or fees.
- No option to adjust contribution frequency independently of withdrawal frequency; both are tied to the same annual or monthly cycle.
- Output is an estimate only; actual annuity performance may vary based on insurer terms and real-world rate changes.
Annuity Calculator FAQ
- Can I use this calculator for both immediate and deferred annuities?
- Yes, the tool includes options for both immediate and annuity due scenarios, allowing you to model payouts that start right away or at a future date of your choosing.
- What happens if I change the interest rate mid-calculation?
- The calculator recalculates the projected balance and payout timeline automatically based on the new rate you enter, keeping all other variables constant.
- Does the tool factor in taxes or fees on the annuity payouts?
- No, the results are based on the nominal interest rate and contribution amounts entered; tax implications and administrative fees are not included in the projection.
- Is there a way to see how monthly contributions affect the final balance?
- Yes, you can input a monthly withdrawal or contribution amount, and the calculator will show how those regular payments impact the growth and duration of the annuity over the selected term.
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