Emergency Fund Calculator
Turn your essential monthly costs into a practical cash-reserve target, then see your shortfall, current coverage and a realistic route to the goal.
Published by GrowThenDraw Editorial Team · Editorial policy · Methodology & sources
To reach the target in 24 months, save about $553/month.
If essentials were 10% higher and the disruption lasted one extra month, the target would be $25,100. This is a comparison, not a forecast.
| Point | Added | Interest | Balance | Gap |
|---|---|---|---|---|
| Now | $0 | $0 | $6,000 | $14,000 |
| Month 6 | $3,000 | $108 | $9,108 | $10,892 |
| Year 1 | $6,000 | $262 | $12,262 | $7,738 |
| 1y 6m | $9,000 | $463 | $15,463 | $4,537 |
| Year 2 | $12,000 | $712 | $18,712 | $1,288 |
| 2y 3m | $13,500 | $854 | $20,354 | $0 |
A better emergency-fund formula
A flat multiple of income can overstate or understate what a household actually needs. This calculator starts with essential expenses: housing, utilities, food, transport, insurance and health costs, minimum debt payments, care commitments and other costs that would continue during an income disruption.
From that total, it subtracts only income you reasonably expect to continue. The remaining monthly cash gap is multiplied by the number of months you choose, then a separate one-time reserve is added for an insurance deductible, urgent repair, emergency travel or a similar shock.
How many months should you compare?
Three to six months of living expenses is a widely used starting range. It is not a rule for every household. FINRA notes that people with variable income or specialised careers may need a larger reserve, while the US Consumer Financial Protection Bureau says the right amount depends on your situation and the unexpected costs you have faced before.
Use the 3, 6, 9 and 12-month comparison instead of treating one green number as a recommendation. Longer job searches, variable earnings, dependants, large insurance deductibles, essential property or vehicle risks and limited access to affordable credit can justify testing the higher scenarios.
What counts as emergency savings
Count money that is genuinely liquid, safe and available without selling a volatile investment or paying a withdrawal penalty. A dedicated savings account is the clearest example. Do not count a credit-card limit as savings, and avoid double-counting cash already reserved for rent, tax, annual insurance, school fees or another known bill.
Government consumer-finance guidance in the United States, Canada and Australia consistently stresses accessibility. Interest can help at the margin, but an emergency fund's first job is to be there when needed, not to maximise return.
What this calculator does not know
It cannot predict a layoff, illness, repair bill, benefit eligibility, severance payment, tax treatment or how quickly income will recover. The entered savings APY is held constant, contributions are added at the end of each month, and no tax on savings interest is modelled.
The output is a planning scenario, not personal financial advice. If your budget is already under strain, starting with a smaller first milestone can still improve resilience; the calculator shows the full target without implying that it must be reached all at once.
Frequently asked questions
How much should I have in an emergency fund?
Three to six months of essential expenses is a common starting range, but the right amount depends on income stability, dependants, insurance gaps and likely one-off costs. Compare the 3, 6, 9 and 12-month results instead of treating one number as universal.
Should I use income or expenses?
Essential expenses usually give a more direct estimate of the cash needed to keep the household running. This calculator also lets you subtract reliable income that would continue during the disruption.
What expenses should I include?
Include costs that would continue: housing, basic utilities, groceries, essential transport, insurance and health costs, minimum debt payments, essential childcare or eldercare, and other necessary commitments. Exclude discretionary spending you could pause.
Can I count my investments or credit limit?
Normally count only safe, liquid money available without a market sale, penalty or new debt. A credit limit is borrowing capacity, not savings; volatile investments may be worth less exactly when cash is needed.
Why is there a separate one-time reserve?
Months of expenses model an income interruption. A deductible, urgent repair or emergency journey can happen at the same time, so the calculator keeps that amount visible instead of hiding it inside a monthly multiple.
Does the calculator include savings-account interest?
Yes. Enter an annual percentage yield and the calculator converts it to the exact equivalent monthly rate. It assumes interest is credited monthly and your savings addition arrives at the end of each month; tax and changing rates are not modelled.
Primary guidance: US Consumer Financial Protection Bureau, FINRA financial foundations, ASIC Moneysmart and Financial Consumer Agency of Canada. Formula and timing notes are documented in our methodology.