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Emergency Fund Runway Calculator

See how many months your savings would last if you lost your income. Adjust expense cuts and part-time income to find your safety net.

How it works: Enter your savings and monthly expenses. Add expected income cuts or part-time income to see a realistic runway.
No cutsAggressive cuts
Typical Rule of Thumb

3-6 months of expenses is the standard emergency fund target. Freelancers and variable-income households often aim for 6-12 months.

Your Runway
1 years 2 months
On Track
Net Monthly Burn
$3,500
Monthly Savings Buffer
$50,000
6-month target$21,000
0$21,000
Target: 6-Month Goal
3 mo (minimum)24 mo (conservative)

Your savings of $50,000 cover 1 years 2 months of expenses — that's above your 6-month target.

This calculator is for educational purposes only. It does not constitute financial advice. Consult a financial professional for your specific situation.

Why an Emergency Fund Matters

An emergency fund is cash set aside for unexpected expenses or income loss — job loss, medical emergencies, urgent home repairs. Financial planners typically recommend 3-6 months of essential expenses, though the right number depends on your situation.

Tips

  • Keep your emergency fund in a high-yield savings account, not invested in the market.
  • Re-calculate after major life changes: new job, move, marriage, or children.
  • If self-employed or in a volatile industry, aim for 6-12 months of expenses.

Actual runway depends on access to credit, unemployment benefits, insurance, and family support. This is a simplified estimate, not financial advice.

Emergency Fund Runway Calculator: Guide

Intent
See how many months your savings would last without income, and whether you should increase your emergency fund.
What it does
Shows how long your savings would last if income stopped, with adjustable expense cuts and part-time income. Compares your current savings against a target months-of-coverage goal.
Key features
Runway estimate in months/years, Expense cut slider (0-60%), Part-time income offset, Adjustable target (3-24 months), Savings progress bar
Privacy
Runs entirely in your browser. No data is sent to any server.
Best for
  • Evaluating emergency fund adequacy
  • Job loss or income disruption planning
  • Financial resilience checkup
Why this tool
  • Simple: savings, expenses, and one slider
  • Adjusts for realistic emergency behavior (cutting expenses, side income)
  • No account, no upload, no financial advice claims

How to use

  1. 1Enter your total savings amount
  2. 2Enter your monthly essential expenses
  3. 3Adjust how much you could cut expenses during an emergency
  4. 4Add any expected part-time or side income
  5. 5Compare your runway against a 3-24 month target

Common mistakes

  • Include only essential expenses (housing, food, utilities, insurance), not discretionary spending.
  • This calculator assumes all savings are accessible — retirement accounts may have penalties for early withdrawal.
  • Actual emergency situations can be longer or shorter than estimated — review your plan annually.

Examples

Standard 6-month goal
Savings: $30,000 Monthly expenses: $5,000 Expense cut: 0% Part-time income: $0 → 6 months runway — meets the standard target
With expense cuts and side income
Savings: $20,000 Monthly expenses: $4,000 Expense cut: 20% ($800) Part-time income: $1,000/mo → ~9 months runway ($2,200/mo net burn)