Build a 1 year food supply for a family of 5 in stages: USDA calorie math, a month-by-month buying plan from grocery staples, rotation and storage rules.
A 1 year food supply for a family of five is roughly 4 million calories. That number sounds impossible until you split it into twelve monthly steps and build it out of the same rice, beans, oats, flour and canned goods you already buy.
This plan is sized for a household like ours: two adults, two teenagers and a 10-year-old. It starts with what your family already eats, moves into bulk staples once the first few months are covered, and keeps everything rotating so nothing sits until it goes bad. If your family is a different shape, the math works the same way. Just change the calorie numbers.
The USDA publishes estimated daily calorie needs by age, sex and activity level. These are the figures the Dietary Guidelines for Americans have used to set food patterns. The 2025 to 2030 edition now points people to the USDA's DRI calculator for individual estimates, but the table is still the simplest planning tool.
Some figures from the table, at the "moderately active" level:
| Person | Estimated calories per day |
|---|---|
| Man, 41 to 45 | 2,600 |
| Woman, 41 to 45 | 2,000 |
| Teen boy, 14 to 16 | 2,400 to 2,800 |
| Teen girl, 14 to 18 | 2,000 |
| Child, age 10 (boy or girl) | 1,800 |
Teenage boys have some of the widest ranges in the table. At 16, the active estimate is 3,200 calories a day. If you have one, plan high.
For a planning number, this guide uses:
That comes to 11,200 calories a day, or about 4.1 million calories a year (11,200 × 365 = 4,088,000). A month is about 340,000 calories.
That's the target. Every can, bag and bucket counts toward it by the calories on its label. Our 30-day food supply calorie guide walks through the same math for one month, and the free food storage calculator does the division for any household size.
Dry staples pack a lot of calories into a pound. Per USDA FoodData Central (raw or dry weight):
| Staple | Calories per pound |
|---|---|
| White rice | about 1,660 |
| All-purpose flour | about 1,650 |
| Dry pasta | about 1,680 |
| Rolled oats | about 1,720 |
| Dry black beans | about 1,550 |
| Granulated sugar | about 1,750 |
| Nonfat dry milk | about 1,640 |
| Peanut butter | about 2,710 |
| Cooking oil | about 120 per tablespoon, roughly 30,700 per gallon |
One 50-pound bag of rice holds about 83,000 calories. That's more than seven days of food energy for a family of five, from one bag.
One example of how a year of bulk staples could add up: These amounts are a starting point, not a prescription. Swap in what your family eats.
| Staple | Amount for a year | Approx. calories |
|---|---|---|
| White rice | 400 lb | 662,000 |
| All-purpose flour | 300 lb | 495,000 |
| Dry beans | 250 lb | 387,000 |
| Rolled oats | 150 lb | 258,000 |
| Dry pasta | 150 lb | 252,000 |
| Cooking oil | 10 gal | 307,000 |
| Peanut butter | 80 lb | 217,000 |
| Granulated sugar | 100 lb | 176,000 |
| Nonfat dry milk | 100 lb | 164,000 |
| Total | about 2.9 million |
That covers about 70 percent of the year. The other 1.2 million calories or so come from canned meat and fish, canned vegetables and fruit, and the everyday pantry foods that make the staples worth eating: sauces, spices, broth, salt and baking powder.
The goal is to add about one month of food each month, so the whole year is in place after twelve months. Early months use foods you already cook. Later months lean on bulk staples, because that's where the calories per dollar and per square foot are.
| Month | What to add | Running total |
|---|---|---|
| 1 | Two weeks of your normal meals in shelf-stable form: canned meat and fish, pasta and sauce, cereal, peanut butter, canned vegetables and fruit | 2 weeks |
| 2 | Two more weeks of the same, plus your first bags of rice and dry beans | 1 month |
| 3 | A second month of pantry meals. Start dating every item and rotating oldest first | 2 months |
| 4 | Bulk rice and beans in sealed containers, plus cooking oil | 3 months |
| 5 | Oats, flour and pasta in bulk, plus sugar or honey | 4 months |
| 6 | Nonfat dry milk, peanut butter, more canned meat | 5 months |
| 7 | More rice and beans; spices, salt, bouillon and baking supplies | 6 months |
| 8 | More canned vegetables and fruit; a second round of oil | 7 months |
| 9 | More flour, oats and pasta | 8 months |
| 10 | More rice and beans; fill any gaps in protein | 9 to 10 months |
| 11 | Top up whatever your family has eaten fastest | 11 months |
| 12 | Final staples; recount every label against the 4.1 million target | 12 months |
A few things make this work:
A year of food only works if it keeps turning over. The simplest system is first in, first out: write the purchase date on everything, put new items behind old ones, and cook from the oldest stock every week.
Canned goods have the shortest clock. The USDA Food Safety and Inspection Service says high-acid canned foods such as tomatoes and fruit keep 12 to 18 months on the shelf, and low-acid canned foods such as meat, fish and most vegetables keep 2 to 5 years. Peanut butter, oil and flour also need regular rotation through normal cooking.
The long-life staples are different. With good packaging and cool storage, rice, beans and oats can sit for years, so they work as the deep layer you rotate slowly.
Utah State University Extension lists the factors that decide how long stored food lasts:
What that means for specific staples, per USU and Brigham Young University research:
If insects show up in dry goods, USU says freezing infested items at 0°F for three to four days kills live insects, larvae and eggs.
For the hands-on side of packing, including Mylar bags and buckets, see our long-term food storage guide.
Space is often the real limit. A year of bulk staples for five people runs to well over a thousand pounds before canned goods. A few practical guidelines:
Some families want part of the year in sealed, ready-to-cook form for the first weeks of an emergency, when cooking from scratch is hard. My Patriot Supply's emergency food kits come in sizes from 72 hours up to 1 year. The company describes its kits as designed for one person, at about 2,000 calories a day.
Run the math before you buy. A one-person 1-year kit at 2,000 calories a day holds about 730,000 calories. A family of five at 11,200 a day would need between five and six of them for a full year. Most families do better with a kit as one layer and grocery staples as the base. If you want a kit, browse My Patriot Supply's emergency food kits. My Patriot Supply is one of the companies we work with, and we may earn a commission if you buy through these links.
About 4.1 million, using USDA estimates for two adults, two teens and a 10-year-old (11,200 calories a day × 365). Your number may be higher with active teenagers.
This plan adds about one month of food each month, so it takes a year. You can go faster or slower. The order matters more than the speed.
White rice, dry beans and rolled oats, sealed without oxygen and kept cool, last for decades in USU and BYU testing. Canned goods, oil, flour and peanut butter need regular rotation.
Most kits are sized for one person. A family of five would need several, so most families use a kit as one layer on top of grocery staples.
*Written by Mike Sasarak, a union electrical lineman with 22 years on the job. He sees how power actually fails, and what families need when it does, on ordinary workdays, not just big name disasters.*