Emergency Fund Calculator
Financial experts recommend saving 3–6 months of essential expenses as an emergency fund. This calculator personalises your target based on your job security, dependants, and monthly costs.
Educational estimate. Calculator results are for planning and information only, not financial, tax, medical, legal, or engineering advice. Verify important decisions with official sources or a qualified professional.
Emergency Fund Calculator
How Much Should You Save?
📐 Formula & Method
Emergency Fund Target
Base: 3 months for very stable dual income, 6 months for moderate, 9–12 months for variable/self-employed with dependants.
📋 How to Use
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1
Enter your monthly essential expenses.
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2
Select your job stability and income situation.
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3
Enter number of dependants.
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4
See your personalised emergency fund target and monthly savings plan.
Why You Need an Emergency Fund
An emergency fund is cash held in a liquid, accessible account (not invested) specifically to cover unexpected costs: job loss, medical bills, car repairs, or emergency travel. Without one, unexpected expenses typically go on credit cards or require selling investments at a bad time.
The rule of thumb is 3–6 months of essential expenses. Single-income households, self-employed people, and those with dependants should aim for 6–12 months. Keep your emergency fund in a high-interest savings account where it earns interest but remains instantly accessible.
🔬 Methodology & Accuracy
Formula: Uses the standard mathematical formula shown in the Formula & Method section above. All computations run client-side in your browser — no data is sent to our servers.
Data sources: Tax bands, contribution limits and regulatory rates are taken from official US (IRS, SSA) and UK (HMRC, gov.uk) publications for the current tax year, and updated when bands change.
Last reviewed: January 2025 · Accuracy: Results are precise to two decimal places using IEEE-754 double-precision arithmetic. Intended for educational and planning use only.
For informational purposes only. Results are estimates based on the inputs and formulas provided. For financial, tax, medical, or legal decisions, consult a qualified professional. Rates and regulations change — always verify current figures with official sources.