What this calculator tells you
Most families do not need the same cover for thirty years. Mortgages shrink, children grow up, and savings build, yet many buy one large thirty-year policy and pay the highest rate on every dollar throughout. A ladder splits cover into shorter pieces that end when the need behind them ends.
This planner prices that idea with the site's rate model, matching the premium estimator, showing the ladder's monthly cost beside a single thirty-year term for the same total.
The formula behind the result
Each rung costs rate(age, smoker, female, term) x rung cover / 1,000; the ladder cost is the sum of the three rungs, and the comparison price uses the 30-year rate on the total cover.
The rate model prices cover per $1,000 per month. It rises with age, roughly triples for tobacco users, is lower for women, and rises with term, so 10-year cover is cheapest and 30-year cover most expensive. Each rung uses its own term factor, so a split ladder usually costs less at first than one long term for the full amount.
The planner compares only monthly cost at today's age, not renewal prices, health changes, or the risk that a rung ends before the need does. A cheaper ladder that leaves a family short in year 15 is no bargain, so check end dates against mortgages and children's ages.
How to fill in each field
- Enter age, tobacco use, and sex; the rate model uses all three to price each rung.
- Split total cover across the 10, 20, and 30-year rungs, with shorter cover on needs ending sooner.
- Compare the ladder cost with the single 30-year term price for the same total cover.
Worked example
A 35-year-old non-smoker splits $500,000 into $100,000 for 10 years, $200,000 for 20 years, and $200,000 for 30 years. The rungs cost about $7, $17, and $22 a month, totalling $47.
A single 30-year term for the full $500,000 costs about $56 a month, so the ladder saves about $9 a month at first. The saving grows as rungs drop off, but only if the family truly needs less cover by then.
When the result may be too high or too low
This is a comparison tool, not a quote. Real premiums reflect medical history, family history, occupation, and underwriting, which the simple model does not capture, and it assumes all rungs start at the same age and stay level.
The bigger risk is timing: if a rung expires while a mortgage or a child's dependence still runs, the family is exposed. Match each rung's end to the real end of the need.
Frequently asked questions
Why split cover instead of buying one long term?
Match cover to the years it is actually needed. Short rungs cover debts and young children, while the longest rung covers income replacement, so total cost falls as each rung ends.
Should I replace a rung when it expires?
Only if you still need the full amount. Many families let the 10-year rung drop off once a mortgage is smaller or children are older, so review every few years rather than assuming the original split still fits.
Are these prices the same as real insurer quotes?
No, the model estimates from age, smoking status, sex, and term only. Real premiums also depend on health, occupation, and the insurer, so use this planner to compare cover shapes, then get actual quotes.
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Edited and checked by Talha Shah. Last reviewed 2026-11-04.