Food Shelf Life Calculator
Find out how long food lasts in the pantry, fridge, or freezer. Based on USDA FoodKeeper guidelines with expiry date estimates for 40+ foods.
About the Food Shelf Life Calculator
Food waste costs the average American household over $1,500 per year — largely because people don't know how long their food actually lasts. Our shelf life calculator covers 40+ common foods across all storage methods, using USDA FoodKeeper guidelines to give you accurate estimates.
Whether you're wondering if that chicken in the fridge is still safe, or how long freezer burn affects frozen meat, this tool gives you clear answers on food storage duration and a projected use-by date from your purchase.
Pantry vs. refrigerator vs. freezer: which is best?
Most perishables require refrigeration. The fridge (35–40°F) slows bacterial growth dramatically — chicken that lasts 2 days at room temperature keeps for 2–3 days refrigerated and 9 months frozen. The freezer (0°F) essentially halts spoilage, though quality degrades over time through freezer burn and texture changes. Pantry storage works for dry goods, canned items, and foods with natural preservatives like salt, sugar, and vinegar.
Understanding best by, sell by, and use by dates
Manufacturers' dates are largely about peak quality, not safety. 'Best by' indicates optimal flavor — not the last safe day. 'Sell by' is a retailer stocking guide. Only 'use by' on infant formula has a hard safety implication under US regulations. Eggs stored properly are safe 3–5 weeks past their carton date; hard cheeses can last months past their best-by date when properly refrigerated.
Signs food has gone bad regardless of date
Trust your senses over any date. Spoilage signs: off or sour smell, slimy or sticky texture, unusual discoloration, visible mold (except on hard cheeses where you can cut it away with margin), and fizzing from canned goods. Danger zone bacteria (Salmonella, E. coli) don't always produce visible or smell changes — pathogenic bacteria in meat can be invisible. When in doubt, throw it out.