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How big should your emergency fund be?

An emergency fund is the quiet foundation of every money plan. Three numbers tell you exactly where yours stands — and what it would take to finish it.

Nothing you enter is saved or sent anywhere — the math runs entirely in your browser.

The must-pays: housing, food, utilities, insurance, minimum debt payments.

Three months is a common starting point. Single-income households and variable earners often aim for more.

Only money you could actually reach within a few days.

Your emergency fund target

$0

$4,000 × 3 months

You currently cover

0.5 months

of essential expenses

Gap to close

$0

still to save toward the target

How many people have this covered?

55 out of 100of U.S. adults had three months of emergency savings in 2024 (Federal Reserve SHED)
55% — of U.S. adults had three months of emergency savings in 2024 (Federal Reserve SHED)

Your next moves (educational, not advice)

  1. Closing the $10,000 gap in 12 months takes about $385 from each biweekly paycheck ($833 a month).
  2. Prefer a gentler pace? About $192 per biweekly paycheck ($417 a month) closes it in 24 months — slower is fine; steady is what matters.
  3. Automate the transfer for payday, so the fund builds before the money reaches your spending account.
Want to talk through your result? No pitch, no obligationRead: why emergency funds matter

Northstar Emergency Fund worksheet — educational estimate only

Monthly essential expenses $4,000 × 3 months → target $12,000. Current savings $2,000 covers 0.5 months. Gap to close: $10,000 (about $833 a month for 12 months, or $417 a month for 24 months).

Generated by northfinserv.com/tools/emergency-fund. Not financial advice.

The formula, in the open

Target = Monthly Essential Expenses × Target Months Example: $4,000 × 3 months = $12,000
Monthly essential expenses: the must-pays — housing, food, utilities, insurance, minimum debt payments. Target months: how long the fund could carry you if your income stopped.

Assumptions

  • Your essential expenses stay roughly steady month to month
  • The fund sits somewhere liquid (like a savings account), so the full balance is reachable within days
  • Three months is a common starting benchmark; single-income households and variable earners often aim higher

Limitations

  • It counts essentials, not your full lifestyle spending — in a real emergency, trimming to essentials is the plan
  • It can't predict the size of an actual emergency; it's a cushion, not a forecast
  • Money parked in cash grows slowly — that's the trade-off for it being there the moment you need it

Want the concept behind the math? Emergency funds: the antidote to financial fragility →