CD Ladder Calculator
Values shown are examples, not an offer. Live certificate APYs from banks and credit unions, each dated at its source, are on the Bank Rate Monitor.
| Interest if Every Rung Is Held | $0 |
| Into Each Rung | $0 |
| Blended APY | n/a |
| Interest in the First Year | $0 |
| Something Matures | n/a |
| Once Fully Rolled Over, APY | n/a |
| Once Fully Rolled Over, per Year | $0 |
| Against One Single Certificate | n/a |
| Rung | Term | APY | At Maturity |
|---|
For illustration only, not financial advice. Results are estimates based on the numbers you enter and do not constitute an offer, rate quote or approval.
How this is worked out
Each rung is an equal share of the deposit placed at a different term. A rung ends at principal times (1 + APY) to the power of its term in years, because APY already includes the compounding.
The steady state is the number people miss. Once each maturing rung is rolled into the longest term, every rung eventually carries the longest rate while one still matures on schedule, so the ladder ends up paying the long rate with short-term access.
The comparison line puts the ladder against putting the whole deposit into one certificate at the longest term, which earns more but locks everything up until the end.
