Plan · Emergency fund
Emergency fund calculator
Set a reserve target from essential monthly expenses, current savings, and the pace you can add.
Scenario inputs
Change the assumptions.
- Essential monthly expenses
- Target months (months)
- Current emergency savings
- Monthly contribution
Open the interactive calculator to enter values. Calculations run in your browser. Editing inputs does not change the page URL. Share calculation includes your inputs after # in the shared link. This URL fragment is not sent in the page HTTP request. Anyone with the link can read its values. Avoid sharing sensitive financial information.
How it works
A reserve starts with a number you can name.
The target multiplies essential monthly expenses by the number of months you choose. The estimated time to target divides the remaining gap by the monthly contribution, without assuming investment growth.
The target months are your chosen scenario, not a universal rule. This calculator does not assess insurance, income stability, dependents, or individual circumstances.
Common questions
Before you use the number.
How large should an emergency fund be?
There is no single amount for everyone. Choose a target-month assumption that reflects your situation, then change it to compare scenarios.
Does the calculator assume interest?
No. It uses essential expenses, current savings, and monthly contributions only, so the result stays easy to inspect.
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