Annuity Calculator

Estimate how an annuity balance may grow while you save, or estimate withdrawals during the payout phase. Choose the mode that matches your question, adjust payment timing, and review the schedule.

Two ways to estimate an annuity. Accumulation projects a starting balance plus regular deposits. Payout estimates a level withdrawal from a balance over time or the time a chosen withdrawal may last. Results are mathematical estimates and do not model a specific insurer’s contract, guarantees, fees, or tax treatment.

Table of Contents

Set your assumptions

Accumulation Payout

Starting balance

Display currency

Currency changes display only; no exchange-rate conversion.

Regular contribution

Contribution / payment frequency

Estimated annual return (%)

Entered as an effective annual rate; converted to the selected payment period.

Time period (years)

When are contributions made?

Beginning-of-period deposits earn a return for that period.

Withdrawal each period

Used when you select “How long will my money last?”

What do you want to find?

Optional inflation rate (%)

Shows today’s purchasing-power equivalent; it does not change the account projection.

Increase contributions by a percentage each year

Annual contribution increase (%)

Show the schedule below the calculator

Your estimate

Estimated balance after 20 years $0.00

Includes starting balance and regular contributions.

Starting balance —

Total contributions —

Estimated growth —

Real value after inflation —

Enter your assumptions and select Calculate to see an estimate.

Accumulation schedule

Year-end values are rounded for display. The calculation uses each payment period.

Schedule view

Year	Starting balance	Contributions / payments	Growth / interest	Ending balance
Calculate to create a schedule.

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How this annuity estimate works

In accumulation mode, the calculator starts with your current balance, adds scheduled contributions, and applies the selected effective annual return over each contribution period. Contributions at the beginning of a period receive one additional period of modeled growth compared with contributions at the end.

In payout mode, the calculator models a level withdrawal at the selected frequency. It can estimate the payment that exhausts a balance over a chosen term, or estimate how many periods a chosen payment may last. A final payment can be smaller than the regular amount if only part of it is needed to reach a zero balance.

What assumptions does this calculator use?

Returns are constant and compounded consistently with the selected payment frequency. Actual annuity products may include surrender charges, administrative and investment fees, insurer crediting rules, tax rules, riders, market-value adjustments, and guarantees that are not represented here. Taxes are not included.

What is the difference between accumulation and payout?

Accumulation estimates balance growth while money is being added. Payout estimates scheduled withdrawals from an existing balance. Use accumulation to explore contributions and time; use payout to compare a planned income amount or payout period.

Does the result guarantee future income?

No. This is a mathematical estimate, not an insurance quote or guarantee. Actual contract benefits depend on the contract terms, fees, insurer, investment results, and applicable law.

Important: Educational estimate only. This calculator does not provide financial, investment, insurance, or tax advice. Verify product details with the insurer and consult a qualified professional for decisions.