Emergency fund calculator
An emergency fund is months of essential spending in cash. Enter your expenses, your target and what you already have to see the gap and how long it takes to fill it.
Planning estimate. Emergency-fund size depends on income stability, dependants and insurance.
How this calculator works
An emergency fund covers the gap between losing income and finding income again: job loss, a medical bill, a car that fails inspection. It is held in cash or a high-yield savings account, not invested, because the point is certainty rather than return.
The usual guidance is three to six months of essential spending — rent, food, utilities, insurance and debt minimums — not your full salary. Two incomes in a stable industry need less; a single income, commission-based pay or dependants argue for more.
The formula
target = monthly essential expenses × months of cover
gap = max(0, target − already saved)
months to reach it = gap ÷ monthly saving$3,200 of essentials with six months of cover needs $19,200. With $4,000 saved the gap is $15,200; saving $400 a month closes it in 38 months, or $1,267 a month gets there in a year.
Worked example
Six months of cover needs $19,200. You have already saved part of it, so the gap is $15,200. At your monthly rate it takes 38 months; finishing in 12 months needs $1,267 a month.
Common mistakes
- Investing the fund. Markets can fall exactly when you lose your job; keep emergencies in cash.
- Basing it on income, not spending. Cover is about expenses you cannot cut, not what you earn.
- Stopping at the first months. A one-month buffer handles small shocks; three to six months is what absorbs a job loss.
Frequently asked questions
Where should the money sit?
A separate high-yield savings account: fast to reach, insured (FDIC/NCUA or equivalent) and not mixed with everyday spending.
Should I pay off debt first?
Compare the interest rate on the debt with the comfort of a buffer. High-interest credit cards usually win; keep a small starter fund while paying them down.
Does the calculator include income tax?
No. Use expenses net of tax, and remember a job loss may also change tax and benefit positions.
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