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Sinking Fund Goal Calculator
Find the monthly amount to set aside to hit a planned expense by its due date.
Amount needed
Already set aside
Months until needed
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How it works
Monthly = (amount needed − already saved) ÷ months until needed
A sinking fund spreads a known future cost — insurance, a trip, holiday gifts — across the months before it is due, so it never lands as a single painful bill. This is the plain no-interest version.
Worked example
Needing $2,400 in 12 months from a zero start means $200 a month.
Frequently asked questions
How is this different from an emergency fund?
A sinking fund is for a planned, expected expense; an emergency fund is for the unexpected.
Where should I keep it?
A separate high-yield savings account keeps it out of everyday spending and earns a little interest.
Related calculators
Savings Goal Timeline Calculator
See how many months it takes to reach a savings goal from your current balance, monthly contribution and interest rate.
Envelope Budget Calculator
Split your monthly take-home pay into spending envelopes and see how much is left to save.
Emergency Fund Calculator
Find your emergency fund target, the gap to reach it, and how long it takes at your monthly saving rate.
This is an educational estimate, not financial advice. Confirm exact figures with your lender, employer or a licensed advisor.