Emergency Food for a Family of 5: The Real Numbers
October 5, 2026 · 3min read · Reviewed against FEMA & CDC guidance

Every emergency food guide is quietly written for a family of four. With five, the math does not just scale by 25 percent: a fifth person is usually a third child, and children change both the calorie line and the practical shopping list.
Here is the five-person version, done properly. For a household of two adults and three kids, two weeks of coverage means about 119,000 calories and 70 gallons of water, roughly $225 as ordinary groceries. (The calculator beside this article recomputes all three numbers if your five looks different, say three adults and two kids.)
The targets, by duration
Planning numbers: 2,000 calories per adult per day, 1,500 per child, one gallon of water per person per day, the same assumptions FEMA and CDC guidance build on.
| Coverage | Calories | Water | Grocery cost, approx |
|---|---|---|---|
| 3 days | 25,500 | 15 gal | $50 |
| 2 weeks | 119,000 | 70 gal | $225 |
| 1 month | 255,000 | 150 gal | $480 |
Two honest notes on that table. Teenagers eat like adults, so promote any teen to the 2,000-calorie line and the two-week total climbs toward 126,000. And the water line is the one families underestimate: 70 gallons is fourteen of the blue 5-gallon jugs, which is why container choice matters more at this size than any food decision.
Food and water calculator
How much food and water does your household need?
Adults
Children
For how long
You'd need
119,000calories
plus 70 gallons of water, around $225 to buy.
For 2 adults, 3 children, 2 weeks.
That's the target. Provision Planner counts what you already have and shows you what's left to buy.
See how close you areFive is where bulk starts winning
At two or three people, a 25-lb bag of rice is a storage problem. At five, it is two months of the grain line in one purchase, bought at the lowest cost per calorie in the store, and a family of five genuinely eats through it before age becomes a concern. The same crossover happens with oats, beans, pasta, and peanut butter by the case.
The practical split that works: buy the calorie backbone in bulk (rice, oats, pasta, beans), and keep the variety layer in normal sizes (canned proteins, fruits, vegetables, sauces) so nothing exotic needs to be choked down and nothing opened goes to waste. Our full list of what stores well maps onto that split cleanly.
Three kids change the list, not just the total
A pantry plan that three kids will actually eat during a stressful week has some non-negotiables the four-person guides skip:
- Familiar beats optimal. The emergency week is the wrong week to introduce lentils. Stock the shelf-stable versions of meals they already eat.
- No-cook breakfast every day. Cereal, shelf-stable milk, oatmeal packets, granola bars. Mornings are the pressure point with kids when the kitchen is limping.
- One treat per day, budgeted. Hot cocoa and candy are morale equipment for children, and they cost almost nothing to add.
- A manual can opener per shelf, because the question of where the can opener went multiplies with household size.
If you want the two-week version handed to you as a ready list, the 2-week plan for a family of 5 is the same math expanded into an actual shopping checklist.
The number that matters is the one on your shelf
The 119,000 is the target. The number that decides how your family's week goes is how many of those calories are already in the house, which pantry math at this size genuinely cannot be done on a guess: five people, forty-odd items, staggered expiration dates.
Provision Planner does the count for you: scan what you have, and it keeps a running answer to "how many days would this actually last the five of us," flagging what expires before you would eat it. Set the target above, then watch the gap close.
Frequently asked questions
- How much emergency food does a family of 5 need for 2 weeks?
- About 119,000 calories for a household of two adults and three kids, using FEMA-style planning numbers of 2,000 calories per adult and 1,500 per child per day, plus 70 gallons of water at one gallon per person per day. As groceries, that is roughly $225 of shelf-stable food.
- How much water should a family of 5 store?
- One gallon per person per day: 15 gallons covers 3 days, 70 gallons covers 2 weeks. Half is for drinking, half for cooking and basic hygiene. Hot climates, pregnancy, and illness push the need up, so treat these as floors.
- Is it cheaper to buy emergency food in bulk for a large family?
- Usually, yes. At five people, staples like rice, oats, and beans drop meaningfully in cost per calorie when bought in 25-lb bags or case lots, and a family of five actually rotates through them fast enough to use bulk sizes before they age out.
You did the reading. Now get your number.
Provision Planner does this article's math for your real household, automatically, and keeps it current as supplies come and go.