Savings Ladder Income Calculator
Annual interest from a 5-rung fixed-term savings ladder with user-entered values and rates.
Calculate annual interest from a 5-rung fixed savings ladder across different maturity terms. Enter rung 1 amount and rung 1 rate for an instant result.
What this tool does
A savings ladder spreads cash across fixed-term accounts maturing in staggered years. Enter each rung's amount and rate. The tool returns total annual interest, weighted average rate, and total capital — useful for retirees or savers wanting staggered liquidity.
Enter Values
Formula Used
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Disclaimer
Results are estimates for educational purposes only. They do not constitute financial advice. Consult a qualified professional before making financial decisions.
10,000 in each of 5 rungs at 4%, 4.3%, 4.5%, 4.7%, 4.8% earns 2,230 a year — a 4.46% weighted rate. Each year one rung matures, freeing 10,000 for spending or reinvestment at current rates. Ladders balance yield (longer fixes pay more) with liquidity (something matures each year).
Rolling the ladder
When rung 1 matures, reinvest at the longest term (5 years) to maintain the 5-year structure. This keeps always-one-year-away liquidity while maximising yield — the hallmark of a ladder strategy.
Quick example
With rung 1 amount of 10,000 and rung 1 rate of 4% (plus rung 2 amount of 10,000 and rung 2 rate of 4.3%), the result is 2,230.00. Change any figure and watch the output shift — it's often more useful to see the pattern than to memorise the formula.
Which inputs matter most
You enter Rung 1 Amount, Rung 1 Rate, Rung 2 Amount, Rung 2 Rate, and Rung 3 Amount. Not every input has equal weight. Flip one at a time toward extreme values to feel which ones move the needle most for your situation.
What's happening under the hood
Total interest is the sum of each rung's amount times rate. Weighted average rate is total interest divided by total capital. Assumes simple annual interest payout; compound accumulation is identical over single-year horizons. The formula is listed in full below. If the number looks off, you can retrace the calculation by hand — that's the point of showing the working.
Turning the result into a plan
A projection is just a starting point. The real work is setting the monthly amount aside automatically so the saving happens before you can spend it. Most people who hit savings goals set up a standing order on payday; most who miss them rely on willpower at month-end.
What this doesn't capture
The calculation assumes a steady savings rate and a stable interest rate. Real saving journeys include emergencies, windfalls, and rate changes — especially in easy-access products. The figure is a direction of travel, not a guarantee.
Total annual interest from your savings ladder is shown above.
Inputs
This example uses typical values for illustration. Adjust the inputs above to match a specific situation and see how the result changes.
Sources & Methodology
Methodology
Total interest is the sum of each rung's amount times rate. Weighted average rate is total interest divided by total capital. Assumes simple annual interest payout; compound accumulation is identical over single-year horizons.
Frequently Asked Questions
Why a ladder vs single fix?
What terms are typical?
Is this inflation-protected?
What about tax-advantaged savings accounts?
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