Infralapse
The grid just went down

How many days would your household last?

Tell us who lives with you, where, and what's in the cupboard. Get your survival score in 60 seconds, then a plan that gets you to your goal on your budget.

Check my days
Free score No sign-up Any country, any currency

From "no idea" to a plan before your coffee goes cold.

Tell us about your home

Who lives with you, where you live, what's in the cupboard and what you can spend.

See your survival score

How many days you'd last today, what runs out first, and what your full stockpile costs in your currency.

Get your plan, offline

A week-by-week buying schedule for your budget, saved on your phone for the day the internet goes too.

Where are you on the ladder?

Most homes start at the bottom. Climbing a rung costs less than a month of takeaways.

0dRunning on Empty
3d72-Hour Hero
7dWeek Warrior
14dFortnight Fortress
30dMonth Master
90dSeason Survivor
180dHalf-Year Hold-Out
365+dYear-Proof Legend

Find my rung

Your full plan
$1once-off, per plan

Everything you need to reach your goal.

  • A buying schedule that fits your budget and deadline
  • Foods sold where you live, with local price estimates
  • Water, power, medical and safety checklists
  • A first-72-hours playbook and rationing guide
  • Update your progress any time. One refresh included
Start with my free score

A peek inside

  • Store 240 L of waterPhase 1 · weeks 1–2R1,280est.
  • Maize meal, rice and beansPhase 2 · weeks 3–6R1,900est.
  • Two-plate gas stovePhase 3 · weeks 7–8R650est.
  • Solar lanterns × 3Phase 3 · weeks 7–8R540est.
  • First 72 hours playbookFill the bath, switch off, check on neighbours

Example for a family of four in Cape Town. Your plan is written for your household.

Guides to get ready

How Much Water to Store for an Emergency (Per Person)How much emergency water to store per person per day, the best containers, how to rotate it, hidden reserves at home and how to make water safe to drink.72-Hour Emergency Kit Checklist: What to Pack Per PersonA practical 72-hour emergency kit checklist: water, food, light, power, first aid and documents per person, plus extras for kids, pets and medication.30-Day Food Stockpile: Shopping List for 2 AdultsPlan a 30-day emergency food supply: calories per person, a sample shopping list for two adults with approximate kilograms, storage tips and no-cook options.Power Outage Preparation: Light, Power and Food SafetyGet ready for a power cut or load-shedding: lighting, power banks and solar, fridge and freezer food-safety times, and how to avoid carbon monoxide poisoning.Stockpiling on a Budget: Build Emergency Supplies SlowlyBuild emergency food and water supplies without breaking the bank: the buy-one-extra method, unit prices, bulk staples and what not to waste money on.

All guides

Questions, answered

How is my number worked out?

We add up daily calories and water for everyone in your home, babies and pets included, then compare that with what you already have. Whichever runs out first sets your number. It is usually water: about 4 litres per person a day, more in a hot climate.

Is the calculator really free?

Yes. Your score, tier, stockpile totals and cost estimate are free, with no sign-up. Your answers stay in your browser unless you buy a plan.

What do I get for $1?

A plan written for your household: a buying schedule that fits your budget and deadline, a local shopping list with price estimates, water, power, medical and safety checklists, a first-72-hours playbook and rationing guidance. You can update your progress any time, and one plan refresh is included.

Does the plan work without internet?

Yes. Open your plan once and it is stored on your phone. Add Infralapse to your home screen and it opens like an app, even in airplane mode. You can also save it as a PDF.

I bought a plan on another phone. How do I get it back?

Go to My plans and enter the email you paid with. We will send you a one-time sign-in link that restores every plan you have bought.

Is this official emergency advice?

No. Infralapse helps you plan and get started. Always follow your local authorities and official guidance such as Ready.gov or your national Red Cross.

When the lights go out, it's too late to shop.

Find out where you stand today. It takes a minute.

Check my days