Estimate a regular withdrawal from an annuity balance, or see how many payments a chosen amount may provide. Compare payment timing and review annual or monthly schedules.
Plan your withdrawals. Choose a payout period to estimate a regular payment, or enter a payment amount to estimate when the balance runs out. This mathematical model does not price an insurer’s lifetime annuity contract.
Your estimate
Calculate to see your estimate.
Calculations retain full precision. Displayed amounts are rounded to two decimals; totals may differ slightly from adding rounded rows.Balance and payout schedule
How this annuity payout estimate works
The calculator treats the starting balance as an account earning a constant return. In fixed-period mode, it solves for a level withdrawal that uses the balance over the selected number of payments. In fixed-payment mode, it follows the account until depletion or a maximum projection of 100 years.
How are payments calculated?
For end-of-period withdrawals, payment = balance × r ÷ [1 − (1 + r)−n], where r is the return per period and n is the number of payments. Beginning-of-period payments divide that amount by (1 + r). At zero return, payment equals balance divided by n.
Which annual rate type should I select?
A nominal annual rate is divided by the number of payments per year. An effective annual rate uses r = (1 + annual rate)1 / payments per year − 1. Use the convention matching your assumption. To compare with our Annuity Calculator, choose effective annual rate in this tool.
Why might a balance remain after 100 years?
A small withdrawal can be covered by the modeled return, or can deplete the balance very slowly. The calculator stops after 100 years and reports the remaining balance. It does not assume you withdraw that balance as an extra final payment.
What does today’s money mean?
Each withdrawal is discounted by your annual inflation assumption for the time until it is received. The first beginning-of-period withdrawal is immediate and is not discounted. This adjustment changes the purchasing-power estimate, not the actual withdrawal schedule.
Is this an insurance quote?
No. The model excludes insurer pricing, lifetime or joint-life benefits, mortality credits, fees, surrender charges, taxes, and contract guarantees. Actual returns can vary. Review the specific contract before using an estimate for a decision.
Educational estimate only; not financial, tax, or insurance advice.