Annuity Calculator
Calculate the future value of regular annuity payments using a rate, term, payment frequency, and payment timing.
Calculate Annuity
Calculate the future value of regular annuity payments using a rate, term, payment frequency, and payment timing.
What This Annuity Calculator Calculates
This calculator estimates the accumulated future value of equal recurring payments when they earn a constant rate over a fixed number of periods.
Formula and Method
FV ordinary annuity = PMT × [((1 + i)^n − 1) ÷ i]; annuity due multiplies the result by (1 + i).
The result uses only the values entered on this page. No account or sign-in is required, and the calculator itself runs locally in your browser.
How to Use the Calculator
- Enter the requested amount, rate, term, or cash-flow values using consistent units.
- Check whether a percentage is annual, periodic, nominal, or effective as indicated by the field label.
- Select Calculate and review the main result plus the supporting figures.
- Use Copy, Share, or Save Result Image only after you have reviewed the assumptions.
Worked Example
Monthly payments of $500 for ten years at 6% annual interest accumulate to more than the $60,000 contributed because earlier payments compound over time.
Common Uses
- Estimate long-term accumulation from regular contributions.
- Compare ordinary annuity and annuity-due timing.
- Understand how frequency and interest rate affect future value.
How to Interpret the Result
The result is an estimate based on a simplified mathematical model. Compare it with the supporting figures rather than relying on one number alone. For borrowing or savings products, actual rates, fees, payment dates, taxes, and institutional rules can change the final amount.
Important Notes and Limitations
This is a fixed-rate mathematical annuity model. Real investment or insurance products may include fees, guarantees, taxes, surrender terms, and variable returns. For important financial decisions, confirm current product terms and calculations with the relevant bank, lender, employer, accountant, or financial professional.
Frequently Asked Questions
What is an ordinary annuity?
Payments occur at the end of each period.
What is an annuity due?
Payments occur at the beginning of each period and therefore earn one additional period of growth.
Does this include an initial lump sum?
No. This page focuses on equal recurring payments; use the Future Value Calculator when a starting balance is needed.
Common Search Questions About Annuity Calculator
How do I calculate annuity?
Use the calculator on this page and enter the requested values. Calculate the future value of regular annuity payments using a rate, term, payment frequency, and payment timing.
How can I get the annuity result quickly?
Enter the required values, calculate, and review the result together with its supporting figures. On rebuilt mobile calculators, the answer is brought into the current viewport so the result is easy to find.
What values do I need to calculate annuity?
Use the inputs shown in the calculator form and keep units consistent. For important decisions, use measured or verified values and review the page assumptions before relying on the result.