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Emergency Fund Calculator

Enter your monthly essential expenses, how many months you want to cover, what you’ve already saved and what you can add each month. The calculator turns that into a savings target, the gap still to close and the number of monthly deposits it would take, with a first milestone of one month along the way.

Your numbers

Housing, food, utilities, transportation, insurance and required debt payments.

Calculated in your browser. Nothing you enter is saved or sent anywhere.

Results

Emergency fund target
$7,200
Still to save
$6,300
Time to reach it
32 months

What this means

3 months of $2,400 in essential expenses is $7,200. You have $900, which covers about 0.4 months.

Saving $200 a month closes the $6,300 gap in 32 monthly deposits, before any interest.

A first milestone of one month of essentials is 8 deposits away, which makes progress easier to see along the way.

Months of essentials covered now
0.4
One month of essentials
8 months away
Full target (3 months)
32 months away
Projected emergency savings by month$396$2.2k$4.0k$5.9k$7.7k051015202530
Projected emergency savings by month
  • There is no single right number of months. Income stability, dependents and health costs all change what a useful cushion looks like.
  • Money set aside for predictable bills, like an annual renewal, belongs in its own savings line rather than in the emergency fund.

How this calculator works

The target is your monthly essential expenses multiplied by the number of months you choose, from 1 to 24. Essentials here means what you’d still have to pay if your income stopped: housing, food, utilities, transportation, insurance and required debt payments. Flexible spending that you could pause is deliberately left out.

The calculator subtracts what you’ve already saved, divides the gap by your monthly deposit and rounds up to whole months, since deposits arrive one at a time. It also shows how many months of essentials your savings cover today and how soon you’d reach one full month. Interest isn’t counted, so the timeline errs on the long side.

The formula

Four short steps produce every figure. The target comes from your essentials and the months you choose. The gap is the target minus what you’ve saved, never below zero. The number of deposits is the gap divided by your monthly saving, rounded up. Months covered today is what you’ve saved divided by one month of essentials.

A worked example

Suppose, as an illustration, your essentials come to $2,800 a month, you have $1,900 set aside and you can save $350 a month. Your savings cover about 0.7 months today, and one full month of essentials is 3 deposits away. The table shows how the timeline stretches as the number of months you choose to cover grows.

Each extra month of coverage adds $2,800 to the target, or 8 more deposits at $350 a month. Reaching one month first can make a larger goal easier to track, and the number of months you aim for can change later as your situation does.

A worked example
Months coveredTargetStill to saveMonthly deposits to reach it
1$2,800$9003
3$8,400$6,50019
4$11,200$9,30027
6$16,800$14,90043

What the result doesn’t tell you

There’s no single right number of months. Whether your income is steady, whether others depend on you, your health costs and how quickly you could replace lost work all change what a useful cushion looks like. The calculator shows what each choice costs and how long it takes; it can’t tell you which one fits your situation.

It also can’t see where the money is kept. Emergency savings do their job best in an account you can reach quickly without a penalty, and deposits at a federally insured bank or credit union are protected up to the applicable limits. Money set aside for predictable bills, such as an annual renewal, is easier to track in its own savings line.

Common questions

How many months of expenses should an emergency fund cover?

There isn’t one answer. You’ll often see three to six months of essentials suggested, but income stability, dependents, health needs and other sources of support all shift the number. A single earner with variable pay may want a bigger cushion than a household with two steady incomes. A smaller first milestone, such as one month, can make the first step easier to reach.

Should I count all my spending or just essentials?

The calculator is built around essentials: what you’d still owe if income paused, such as housing, food, utilities, transportation, insurance and required debt payments. Streaming, eating out and other flexible costs could be cut back in a real emergency. If you’d rather plan to keep your full lifestyle going, enter your total spending instead and expect a larger target.

Where should I keep an emergency fund?

Somewhere you can reach quickly, that won’t fall in value just before you need it, and that doesn’t charge you to take money out. A savings account at a federally insured bank or credit union is one option; deposit insurance covers balances up to the applicable limits. Investments can lose value and some accounts restrict withdrawals, so check access and fees first.

Does the calculator include interest?

No. It counts only your deposits, which keeps the timeline simple and slightly on the long side. If the fund earns interest, you may reach the target a little sooner. Savings rates can change, though, so a timeline that doesn’t depend on interest is often easier to rely on, with any interest earned treated as a small bonus.

What happens after I use my emergency fund?

Using it is what it’s for. Afterward, you can enter the new, lower balance as what you’ve already saved, and the calculator will show how long rebuilding takes at your current monthly deposit. If that feels too long, a temporary increase in the deposit or a smaller interim target can shorten the first step back.

Terms on this page

Sources and further reading

Examples are illustrative and focus on U.S. personal finance. This page is educational, not individual financial, investment, tax, or legal advice. Read our editorial approach or report a correction.

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