Emergency fund calculator

Target reserve = essential monthly expenses × months of coverage. Subtract what you already saved.

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Essential monthly expenses

Months to cover

More inputs and assumptions

Already saved

Answer

…

Target reserve = essential monthly expenses × months of coverage. Subtract what you already saved.

More results

Precision and calculation record

Decimal places in numeric results and text downloads

Rounding changes displayed numbers, not the calculation. Text, fractions, matrices and CSV schedules keep their own formatting. Automatic keeps up to 12 significant digits, with money shown to cents where applicable.

Step-by-step calculation

Inputs are substituted below. Each line evaluates the next operation; intermediate values are displayed to 12 significant digits while the calculation uses full precision.

Saved scenario

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Formula and assumptions

Choose your own coverage period; the example is not a recommendation. This static estimate excludes inflation, interest, taxes, and changing expenses.

Automatic precision shows money to two decimal places and other numbers to 12 significant digits. Thousands separators such as 1,000 are accepted; use a dot for decimals.

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Updated 2026-09-26

Using Emergency fund calculator

Target reserve = essential monthly expenses × months of coverage. Subtract what you already saved.

Choose your own coverage period; the example is not a recommendation. This static estimate excludes inflation, interest, taxes, and changing expenses.

Next: Basic calculator

A worked example

With essential monthly expenses = 2500, months to cover = 6, already saved = 3000, the additional savings needed is 12,000.00 (rounded to two decimal places).

Before you use the result

Choose your own coverage period; the example is not a recommendation. This static estimate excludes inflation, interest, taxes, and changing expenses. Calculations keep full browser-number precision. Money amounts are displayed to two decimal places; other results use up to 12 significant digits. Very large values may lose precision.

Example results for essential monthly expenses

These examples use Months to cover: 6; Already saved: 3000. They are reference calculations, not recommended settings.

Essential monthly expenses	Additional savings needed
1250	4,500.00
2500	12,000.00
5000	27,000.00

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