Summary
Compare your recommended reserve with what you have saved, then see the monthly amount that closes the gap on your schedule.
Calculation details
The recommended fund multiplies essential monthly expenses by the months of coverage you choose. The funding gap subtracts current savings from that target and never goes below zero. Interest, inflation, and income changes are excluded.
Formula
Recommended fund = monthly expenses × coverage months. Funding gap = max(recommended fund − current savings, 0). Monthly saving = funding gap ÷ saving months. Coverage = current savings ÷ monthly expenses.
Worked example
Six months of $3,000 expenses
A six-month reserve for $3,000 in monthly expenses is $18,000. With $6,000 already saved, the gap is $12,000, or $1,000 per month over 12 months; current savings cover 2 months.
How it works
Enter your essential monthly expenses, the months of coverage you want, your current emergency savings, and how many months you plan to save. Common guidance suggests covering three to six months of expenses.
Frequently asked questions
What does this emergency-fund estimate estimate include?
It multiplies your essential monthly expenses by the months of coverage you choose; interest, inflation, and income changes are excluded.
When is this emergency-fund estimate most useful?
When sizing a cash reserve target and the monthly saving needed to close the gap.
Are displayed values rounded?
The formula keeps full numeric precision. Values are rounded only when formatted for display.
Can actual results differ?
Yes. Expense volatility, irregular income, and interest on savings change how long a reserve actually lasts.