Enter the starting balance, your monthly contribution, the annual rate, the term, and how often interest compounds; the projected final value updates as you type.
Annuity Calculator Online
Project how a series of regular contributions - an annuity-style payment stream - grows alongside a starting balance over the years you keep paying in.
Use the monthly-contribution field to model a regular annuity payment on top of an initial lump sum, which suits retirement-savings and annuity-planning estimates.
Key features
- Enter the starting principal, monthly contribution, annual rate, term, and compounding frequency; the final value, total contributed, and interest earned update as you type.
- Compare monthly, annual, and daily compounding to see how frequency changes the result over the same term.
- The page opens on a worked example rather than blank fields - a $5,000 starting balance, $100 added each month, a 7% annual rate compounded monthly over ten years - so a full projection is on screen the moment you arrive and you can swap in your own figures one at a time.
Privacy and data handling
All math runs locally in the browser - no upload, no account, and your numbers never leave your device. Results are illustrative estimates based on a constant rate and are not financial advice.
Related tools
To treat the same projection as plain compound interest, the compound interest calculator runs the same growth formula.
Frequently Asked Questions
What does Annuity Calculator Online do?
Estimate what an annuity or retirement pot could grow to by the end of its term. Enter a starting principal and a fixed monthly contribution, set the annual rate and the number of years, then pick Monthly, Annually, or Daily compounding. On every keystroke it projects the final value alongside the total you contributed and the interest earned, entirely in your browser with no account and no upload.
When should I reach for annuity calculator online?
Reach for it when planning an annuity or retirement pot: enter a starting principal and monthly contribution across your chosen term, pick Monthly, Annually, or Daily compounding, and read the final value alongside the total you contributed and the interest earned.
What complementary tools work well alongside annuity calculator online?
Results are an estimate based on a constant rate; actual returns vary and this is not financial advice.