Annuity Calculator

Use this free annuity calculator to estimate future value, present value, total payments, and payment count from payment amount, rate, time, frequency, and timing.

All tools

Formula steps Estimate limits shown Examples included Private history

Payment amount ($)Annual rate (%)Time (years)Payments per yearPayment timing

Estimated annuity future value$205,516.83

$500.00 payments, 240 total payments

Present value: $75,762.66
Total payments: $120,000.00
Payments: 240
Timing: End of period

This is a simplified annuity formula, not an insurance quote or investment recommendation.

Formula steps

Convert the annual rate to a periodic rate based on payments per year.
Calculate future value from the payment stream.
Calculate present value using the same rate and payment count.
Adjust for beginning-of-period payments when annuity due is selected.

How to use the annuity calculator

Enter the requested dollar amounts, rates, terms, tax settings, or contribution details.
Use rates as percentages, such as 6.5 for 6.5%, and check whether a field asks for a monthly or annual amount.
Press the calculate button to see the answer, supporting metrics, and formula steps.
Use the result as a planning estimate only, then copy it if the assumptions look right.

Common uses

Estimate the future value of repeated payments.

Estimate present value for a fixed payment stream.

Compare end-of-period and beginning-of-period payments.

Check annuity formula homework or planning examples.

Examples

Monthly annuity $500/month, 5%, 20 years

Future value and present value

Annual payments $6,000/year, 4.5%, 15 years

Fixed payment stream estimate

Annuity due $400/month at beginning of period

Beginning-of-period adjustment

Frequently asked questions

Plain-language answers about when to use the estimate, what your numbers mean, what is left out, and how privacy works.

When should I use the Annuity Calculator?

Use it for early planning and side-by-side comparisons, especially for tasks like these: Estimate the future value of repeated payments. Estimate present value for a fixed payment stream. Treat the answer as a planning estimate, not a final quote.

What is the Annuity Calculator doing with my numbers?

In plain language: The calculator converts the annual rate to a periodic rate, then uses ordinary annuity or annuity-due formulas for future value and present value. If the result seems too high or too low, first check whether each field expects a monthly amount, annual amount, dollar value, or percent.

What does this estimate leave out?

This is a simplified fixed-rate annuity formula. It does not include insurer pricing, fees, taxes, guarantees, surrender charges, inflation riders, or contract terms. Real finance decisions can also depend on fees, timing, local rules, credit details, and provider-specific terms.

Does the site save my finance inputs?

No. The calculator runs in your browser tab. Recent answers stay only on the page while you use it, and they are not sent to a server.