Emergency Fund Calculator

Use this calculator to estimate an emergency fund target based on monthly essential expenses.

What this calculator does

The emergency fund calculator estimates how much cash to keep available for unexpected expenses or income disruption.

It uses:

• monthly essential expenses
• desired months of coverage
• current emergency fund balance
• 12-month catch-up period

Emergency Fund Formula

Target = Monthly Expenses x Months of Coverage

Where:

• Target = recommended emergency fund
• Monthly expenses = essential monthly costs
• Months of coverage = desired cash runway
• Gap = target minus current balance

Example calculation

If:

• Monthly essential expenses = 3,500
• Months of coverage = 6
• Current emergency fund = 8,000

Then:

• Emergency fund target = 21,000
• Gap to fill = 13,000
• Monthly savings for 12 months = 1,083

The target emergency fund is 21,000.

What is an emergency fund?

An emergency fund is cash reserved for unexpected events such as job loss, medical costs, repairs, or urgent family needs. It should be accessible and separate from everyday spending.

Why emergency funds matter

• reduce reliance on credit cards during emergencies
• protect long-term investments from forced selling
• provide time to handle income disruption
• make unexpected costs less stressful

When to use this calculator

• setting a first emergency fund target
• reviewing cash reserves after expenses change
• planning after a job or income change
• deciding how much to save each month

Common mistakes

• including discretionary spending as essential expenses
• keeping emergency money in hard-to-access investments
• stopping before the fund matches real monthly costs
• forgetting to refill the fund after using it

Emergency fund vs savings goal

An emergency fund protects against unknown expenses. A savings goal is usually for a known future purchase or planned cost.

FAQs

What is an emergency fund?

An emergency fund is a cash reserve for unexpected costs or loss of income.

How do you calculate an emergency fund?

Multiply monthly essential expenses by the desired number of months of coverage.

What is a good emergency fund?

Three to six months of essential expenses is a common starting range, with more for variable income or higher risk.

What is the difference between emergency savings and regular savings?

Emergency savings are reserved for urgent needs. Regular savings can fund planned goals and purchases.