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Emergency Fund Calculator

Emergency fund calculator

An emergency fund is money set aside to cover essential bills if your income stops or an unexpected cost lands. Enter your essential monthly expenses and how many months of cover you want, and this tool shows your target, how much is still to save, and a monthly amount to get there in a year.

Size your fund

Emergency fund calculator

Target fund $12,000
Still to save $10,000
Per month to reach it in a year $834

These figures are estimates for illustration only. The calculator multiplies the expenses and months you enter and spreads any remaining gap evenly over twelve months. It does not account for interest earned, changing expenses, or your wider situation. This tool is educational and is not personalized financial advice.

How this calculator works

Methodology

Formula
Target = essential monthly expenses × months of cover. Monthly savings = remaining gap ÷ 12.
Assumptions
Expenses cover only unavoidable bills; the fund is held in cash, not invested; the one-year timeline is a planning aid, not a requirement.
Data sources
The three-to-six-months framing and the "essential expenses" definition follow general consumer-education guidance from the CFPB and FDIC (linked below).
Limitations
Real expenses change month to month, interest is ignored, and individual circumstances vary widely. Treat the output as a starting estimate.

Calculations are our own and are estimates. Actual outcomes differ because of changing expenses, interest, taxes, and individual circumstances. This is general education, not personalized financial advice.

A worked example

$3,000 of essentials, four months of cover

Multiplying $3,000 by four gives a $12,000 target. If you have already saved $2,000, that leaves $10,000 to go. Spread evenly over a year, that is about $834 a month. If that is too steep, extend the timeline or start with a one-month milestone first.

Frequently asked questions

How much should I have in an emergency fund?

A common guideline is three to six months of essential expenses. Start with a smaller milestone first, such as one month of essentials or about $1,000, and build from there.

Should I size my fund from income or expenses?

Use essential expenses, not income. The fund is meant to cover the bills you could not skip if your income stopped, so those bills set the target.

Where should I keep my emergency fund?

In a separate, easy-to-reach savings account, ideally one that is FDIC-insured and pays some interest. Keeping it apart from your checking account makes it less tempting to spend.

Sources

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