The Finance Algorithm
§ Tool · tier 1 · independent

Emergency Fund Calculator.

Calculate how much you need in your emergency fund based on your expenses, income stability, and personal situation.

CalculatorFree, no signupOn-deviceupd May 2026
Inputs
Your numbers
$
$4k

Rent/mortgage, food, utilities, transport, insurance, min. debts

$
$6k

Your after-tax monthly income

Less stable income needs a larger buffer

People financially dependent on you

$
$5k

Money you can access immediately for emergencies

Affects potential out-of-pocket medical costs

Math updates live as you change inputs · AI runs on submit

Awaiting inputs

Move the sliders or type in the form on the left — the math updates live as you go. Click Get AI verdict when you want a written analysis.

An emergency fund is the foundation of financial security — it's money set aside for unexpected events like job loss, medical emergencies, car repairs, or urgent home maintenance. Without one, a single unexpected expense can spiral into debt. Financial experts recommend 3-6 months of essential expenses, but your ideal amount depends on your income stability, family situation, and risk tolerance. This calculator gives you a personalised target.

§ Worked examples

Real-world scenarios

Single Professional

Kai is single, earns $80,000 (stable job), spends $3,800/month on essentials, and has $2,000 saved.

Kai needs $11,400-$22,800 (3-6 months). We recommend $15,200 (4 months) for a stable single income. He needs to save $13,200 more. At $500/month, that's 26 months to reach his target.

Freelance Family

Jess and Tom are freelancers with 2 kids, spending $7,500/month on essentials. They have $8,000 saved.

With variable income and dependants, they need 6-9 months: $45,000-$67,500. We recommend $56,000 (7.5 months). They need $48,000 more — a significant goal, but essential for their situation.

§ FAQ

Questions Australians ask

§ Glossary

Plain-English definitions

Emergency Fund
A cash reserve set aside to cover unexpected financial shocks. Should be liquid, accessible, and kept separate from everyday money.
Essential Expenses
The minimum costs you MUST pay to survive: housing, food, utilities, insurance, transport, minimum debt payments. Not discretionary spending like entertainment or dining out.
Income Stability
How secure and predictable your income is. Government employees have high stability; freelancers have low stability. Lower stability requires a larger emergency fund.