Emergency Fund Calculator — How Much to Save
Find out exactly how large your emergency fund should be, how far you are from the goal and how many months it will take to get there — given your monthly essential expenses, coverage target and current savings.
months
Liquid savings required to cover essential expenses without income
- 1
Emergency fund target
3,000 × 6 months = 18,000Monthly essential expenses multiplied by the desired coverage period. - 2
Shortfall
18,000 − 5,000 = 13,000 - 3
Months to fully funded
13,000 ÷ 500 per month = 26
How does this calculator work?
Emergency fund target = monthly essential expenses × coverage months (typically 3–6; use 9–12 if self-employed). Shortfall = target − current liquid savings; months to goal = shortfall ÷ monthly contribution. Keep the fund in a liquid, low-risk, dedicated account — do not count investments that may lose value or take time to access.
Formula
How this is calculated
An emergency fund is liquid cash set aside to cover essential expenses if your income stops — due to job loss, illness, or a large unexpected cost. The standard guidance is 3 months of expenses for households with a stable dual income, 6 months for a single earner or variable income, and 9–12 months for the self-employed. "Expenses" means only unavoidable outgoings: rent or mortgage, food, utilities, transport, insurance, and minimum debt payments — not discretionary spending like subscriptions, dining out or entertainment.
The target is simply monthly essential expenses multiplied by the number of coverage months. The shortfall is the difference between that target and your current liquid savings — savings accounts, money-market accounts, or short-notice deposits. Do not count investments here: stocks can drop 30–40% exactly when you need the money most, and selling at a loss defeats the purpose.
Dividing the shortfall by your planned monthly contribution gives the number of months to reach the goal. The calculator assumes a flat contribution with no interest on savings (conservative). In practice, a high-yield savings account earning 4–5% p.a. will modestly shorten the timeline. Once funded, keep the money in a separate account from everyday spending to avoid accidentally drawing it down.
Frequently asked questions
Most planners recommend a small starter fund of roughly one month of expenses before aggressively paying down high-interest debt. Without any cushion, the next surprise expense will likely put new high-interest charges on a credit card. Once the starter fund is in place, focus on debt, then build the full fund.
It must be liquid (accessible in a day or two with no penalty) and low-risk. High-yield savings accounts, money-market accounts, or short-term Treasury bills are standard choices. Avoid stocks or long-term fixed deposits — their value or accessibility can be compromised at the worst moment.
Three months covers most short disruptions — an unexpected car repair, a brief illness, or a quick job search. But the median job search in many countries takes 4–6 months, and medical events can last longer. Six months is increasingly recommended as the baseline, especially for single-income households or jobs in volatile sectors.
Also known as
TG we-Calculate Editorial Team. (2026). Emergency Fund Calculator — How Much to Save [Online calculator]. TG we-Calculate. https://we-calculate.com/calculator/emergency-fund-calculator
TG we-Calculate Editorial Team. "Emergency Fund Calculator — How Much to Save." TG we-Calculate. 2026. https://we-calculate.com/calculator/emergency-fund-calculator.
TG we-Calculate Editorial Team, "Emergency Fund Calculator — How Much to Save," TG we-Calculate, 2026. [Online]. Available: https://we-calculate.com/calculator/emergency-fund-calculator
@misc{wecalculate_emergency_fund_calculator, title = {Emergency Fund Calculator — How Much to Save}, author = {{TG we-Calculate Editorial Team}}, howpublished = {\url{https://we-calculate.com/calculator/emergency-fund-calculator}}, year = {2026}, note = {TG we-Calculate} }
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