Size an emergency fund from your essential expenses and see how long it takes to build.
Size an emergency fund from your essential expenses and see how long it takes to build.
Enter values above and click Calculate — results will appear here with the formula explained.
An emergency fund exists to turn income shocks into inconveniences. The standard sizing method multiplies your unavoidable monthly spending by the number of months you want to survive without income — three months suits very stable situations, while freelancers and single-income households often aim higher.
Count only essentials: rent or mortgage, groceries, utilities, insurance and minimum debt payments. Vacations and discretionary spending disappear during genuine emergencies, so including them inflates the target unnecessarily.
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An emergency fund exists to turn income shocks into inconveniences. The standard sizing method multiplies your unavoidable monthly spending by the number of months you want to survive without income — three months suits very stable situations, while freelancers and single-income households often aim higher. Formula: Target fund = Monthly essential expenses × Months of coverage
Emergency Fund Calculator computes size an emergency fund from your essential expenses and see how long it takes to build. Formula: Target fund = Monthly essential expenses × Months of coverage. Example: Essential expenses of $2,600/month with six months of coverage means a $15,600 target.
Size an emergency fund from your essential expenses and see how long it takes to build. Formula: Target fund = Monthly essential expenses × Months of coverage
| Field | What to enter |
|---|---|
| Essential monthly expenses ($) | e.g. 2600 |
| Months of coverage | Common guidance: 3–6 months for stable income, more for variable. |
| Already saved (optional) ($) | e.g. 1500 |
| Monthly contribution (optional) ($) | e.g. 400 |
All fields use the exact formulas shown below — results include step-by-step breakdowns you can verify by hand.
An emergency fund exists to turn income shocks into inconveniences. The standard sizing method multiplies your unavoidable monthly spending by the number of months you want to survive without income — three months suits very stable situations, while freelancers and single-income households often aim higher.
Count only essentials: rent or mortgage, groceries, utilities, insurance and minimum debt payments. Vacations and discretionary spending disappear during genuine emergencies, so including them inflates the target unnecessarily.
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Essential expenses of $2,600/month with six months of coverage means a $15,600 target. With $1,500 saved and $400/month set aside, the fund completes in about 36 months.
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