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Family emergency fund calculator

Set your emergency fund target based on your family's essential expenses, then work out how many more months until you reach it.

Input

Rp

Basic needs only: housing, food, transport, education, mandatory installments.

Rp
Rp

Emergency fund target

Rp 42.000.000

6 × essential spending of Rp 7.000.000

Saved so far
Rp 10.000.000
Still needed
Rp 32.000.000
Progress
23,8%
Estimated time to reach
16 months

Progress is still below a quarter of the target. Prioritise the emergency fund before taking on new instalments.

All calculations run on your device. No numbers are sent or stored.

Assumptions used

  • Essential expenses, not total spending. If the emergency fund is used, lifestyle can go down — what can't stop are installments and basic needs.
  • Keep the emergency fund in an instrument you can cash out within 1–2 business days, not an asset that goes up and down.
  • Savings interest isn't included, because its effect is small compared with how long it takes to build the fund.

How the calculation works

  1. 1Essential expenses multiplied by the target number of months.
  2. 2Subtract the funds you already have to get the shortfall.
  3. 3Divide the shortfall by the amount you can set aside per month to get the time needed to build it.

Frequently asked questions

Where should the emergency fund be kept?+

A separate savings account or a money market fund. Not in stocks, physical gold, or long-term time deposits — what you need is fast access, not returns.

Can the emergency fund be used for a house down payment?+

Better not. If the down payment uses up your emergency fund, you lose your buffer right when your monthly obligations go up.

If expenses rise every year, does the target rise too?+

Yes. Review it once a year. Rising living costs and new family members change the base number.

Terms in this calculator

family budgetcash flownegative cash flowlife insuranceexpense record bookinterest

Supporting reading

  • Family emergency fund: how many months, where to keep it, when to use it

Other calculators

Child education fundIncome zakatMortgage simulationWedding costsHospital costsRetirement fund

Calculator results are educational estimates, not an offer or financial advice.

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