Emergency Food Supply Calculator

Calculate exactly how much emergency food your household needs — with calorie totals, suggested food quantities by category, water storage needs, and an estimated budget. No guessing required.

🧮 Calculate Your Emergency Food Needs

Calorie Density Reference: Common Emergency Foods

Food ItemCalories per lbShelf LifeWater NeededNotes
White rice (dry)1,60025+ years (sealed)2:1 water:riceMost efficient calorie storage by weight and cost
Pinto beans (dry)1,55025+ years (sealed)3:1 water:beansComplete protein when combined with rice
Rolled oats1,8005 years (sealed)2:1 water:oatsFast prep; good fiber; versatile
Peanut butter2,8502 yearsNoneHigh calorie, no cooking needed, shelf-stable
Pasta (dried)1,6505–8 years4:1 water:pastaWide variety; low cost per calorie
Canned tuna5003–5 yearsNoneComplete protein; no cooking required
Canned chicken5503–5 yearsNoneVersatile protein source; ready to eat
Canned beans3803–5 yearsNoneReady to eat; fiber and protein
Freeze-dried meals400–50025–30 years1–2 cups per mealHighest convenience; highest cost per calorie
Crackers / hardtack1,9002–5 yearsNoneNo-prep, no-cook carbohydrates
Honey1,380IndefiniteNoneAnti-microbial; natural sweetener; wound care
Cooking oil3,5202–4 yearsNoneHighest calorie density; adds needed fats
Powdered milk1,5802–10 years1 cup water per 1/4 cup powderCalcium, protein; mix with water
Almonds / mixed nuts2,6001–2 yearsNoneNo-prep; dense; good fat and protein

Water Storage Requirements

UsePer Person Per DayNotes
Drinking0.5 gallons minimumIncrease in heat or for active individuals
Cooking (hydrating dry foods)0.5 gallonsVaries by food stored — dry goods need more
Basic sanitation / hygiene0.5–1 gallonCan be reduced in water emergencies
Practical minimum1.5–2 gallonsFEMA recommends 1 gal minimum; 2 gal is more realistic