Emergency Fund Calculator: how much you need to save

This calculator determines the ideal size of your emergency fund based on your essential monthly expenses and the number of months of coverage you want.

Emergency fund formula

The calculation is straightforward:

Fund = monthly_essential_expenses × months_of_coverage

The general recommendation is to have 3 to 6 months of essential expenses. People with variable income or dependents should consider 6-12 months.

Example 1: basic 3-month fund

Problem: Monthly essential expenses: $2,500. Desired coverage: 3 months.

1. Calculation:
   • Fund = $2,500 × 3 = $7,500.

Answer: Your emergency fund should be $7,500.

Example 2: conservative 6-month fund

Problem: Monthly essential expenses: $3,200. Desired coverage: 6 months.

1. Calculation:
   • Fund = $3,200 × 6 = $19,200.

Answer: Your emergency fund should be $19,200.

Usos comuns

• Protecting against unexpected job loss.
• Covering unforeseen medical expenses without going into debt.
• Handling urgent home or vehicle repairs.
• Avoiding credit card use for emergencies.
• Providing financial peace of mind and reducing stress.
• Creating a solid foundation before investing or saving for other goals.

Common mistakes with the emergency fund

• Not including all essential expenses (insurance, necessary subscriptions).
• Using the fund for non-urgent expenses or wants.
• Keeping the fund in a low-yield account without easy access.
• Not replenishing the fund after using it for a real emergency.

Dica profissional

Keep your emergency fund in a high-yield savings account separate from your main account. It should be liquid (immediate access) but separate enough not to tempt you to use it unnecessarily.