CD Ladder Calculator
Split cash across rungs for liquidity plus yield.
Enter your values
Enter the total to invest in $.
Enter the number of rungs you are working with.
Enter the shortest apy in %.
Enter the longest apy in %.
Results update instantly as you type — no submit needed. Your values are remembered on this device, and the shareable link reopens the calculator with exactly these numbers.
- Amount per rung
- $10,000.00
- Blended yield
- 4.2%
- First-year interest
- $2,100.00
- Matures each year
- $10,000.00
Working
- 1rates: 4.5%, 4.35%, 4.2%, 4.05%, 3.9%
Quick answer
A CD ladder spreads money across staggered maturities so part of it matures each year while the rest earns longer-term rates.
per rung = total / rungs; blended yield = average of rung APYs
At a glance
| What it does | Split cash across rungs for liquidity plus yield. |
|---|---|
| Category | Finance |
| Inputs needed | Total to invest, Number of rungs, Shortest APY, Longest APY |
| Main output | Amount per rung |
| Formula | per rung = total / rungs; blended yield = average of rung APYs |
| Cost | Free — no sign-up, no download |
How to use the CD Ladder Calculator
- 1Enter the total cash and how many rungs you want, usually 3-5.
- 2Enter the short and long APYs your bank offers.
- 3Reinvest each maturing rung at the longest term to keep the ladder rolling.
Inputs explained
- Total to invest($)
- Enter the total to invest in $.
- Number of rungs
- Enter the number of rungs you are working with.
- Shortest APY(%)
- Enter the shortest apy in %.
- Longest APY(%)
- Enter the longest apy in %.
Worked example
Using the values the calculator loads with:
Inputs
- Total to invest50000 $
- Number of rungs5
- Shortest APY4.5 %
- Longest APY3.9 %
Results
- Amount per rung$10,000.00
- Blended yield4.2%
- First-year interest$2,100.00
- Matures each year$10,000.00
- rates: 4.5%, 4.35%, 4.2%, 4.05%, 3.9%
Frequently asked questions
Why ladder instead of one long CD?
You keep regular access to cash without early withdrawal penalties.
What if rates fall?
Existing rungs keep their locked rates, cushioning the drop.
What do I need to enter into the CD Ladder Calculator?
Just 4 values: total to invest, number of rungs, shortest apy, longest apy. Every field starts with a realistic example, so you can change one number at a time and watch the result update instantly.
How does the CD Ladder Calculator work out the answer?
A CD ladder spreads money across staggered maturities so part of it matures each year while the rest earns longer-term rates. It applies the formula per rung = total / rungs; blended yield = average of rung APYs and shows the working so you can check each step by hand.
Is the CD Ladder Calculator free, and do I need an account?
It is completely free with no sign-up, no download and no usage limit. Everything is calculated in your browser, so the numbers you type never leave your device.
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.