Food waste cost calculator

Estimate what edible groceries your household throws away may be costing. Use your own food spending or track discarded food for a week, then see a monthly and annual pace.

How much are you throwing away?

Use your grocery spending or track the edible food you discarded during a typical week.

Currency

Tracking period

How do you want to estimate it?

Grocery spending this week (USD)

Food bought for home; leave restaurant meals out.

Estimated share discarded (%)

Count edible food thrown away before it was eaten.

What if you reduced that amount by (%)?

An adjustable scenario, not a promised saving.

Count edible food only. Include spoiled groceries and uneaten leftovers that were still meant to be eaten. Exclude peels, bones, shells, coffee grounds, food you donated, and restaurant spending. Food safety comes first; never eat food that may be unsafe just to improve the estimate.

Make the estimate yours

National food-waste figures combine different households, food categories, and stages of the supply chain. This calculator uses your own grocery spending and your own estimate, or the purchase prices you log. It does not claim that a national average is your household’s actual loss.

Separate prevention from composting

Use the cost estimate for edible food that could have been eaten. Peels, bones, and other unavoidable scraps do not represent missed grocery value in this calculation. Preventing edible food from being discarded comes first; composting is a useful route for scraps that remain.

How to get a useful baseline

For a typical week, keep food-at-home grocery spending separate from restaurant and takeout meals.
Before throwing edible food away, estimate the portion of its original purchase price that is being discarded. Half a package counts as half its price.
Leave peels, bones, shells, coffee grounds, donated food, and food still safe to store or eat out of the edible-waste cost.
Repeat during another ordinary week if the first week was unusual, then use the reduction scenario to set a goal that feels realistic.

The monthly and annual values are projections from the period you enter. They are not receipts or a promise of savings.

Try a low-waste grocery week

Before shopping, pick two meals that use food already in the fridge or pantry.
Plan a “use-it-up” meal before the next grocery trip, and freeze suitable leftovers before they are forgotten.
Try buying for a shorter interval if a full week’s shop often leaves produce unused, then compare another typical week in the calculator.

These are practical experiments, not a guarantee that one shopping routine works for every household. USDA consumer guidance also recommends planning and storing food to reduce waste.

Food waste calculator questions

How do I calculate the cost of food waste at home?

Use grocery spending for a typical week or month and estimate the share of edible food you threw away, or track the purchase cost of discarded edible food directly. The calculator annualizes your own estimate; it does not substitute a national average for your household.

What counts as food waste in this calculator?

Count edible groceries that were intended to be eaten but were thrown away, such as spoiled produce or uneaten leftovers. USDA distinguishes edible food loss from non-edible parts such as peels, bones, and eggshells. This tool focuses on the edible food cost you could potentially prevent.

Should I include restaurant meals or takeout?

This estimate is for groceries bought to eat at home. Leave restaurant and takeout meals out because the menu price includes preparation and service, not just the food's purchase cost. You can track restaurant spending separately if you want a broader household estimate.

Is the annual amount a guaranteed saving?

No. It projects the period you entered across a year, assuming that pattern repeats. The reduction field is a what-if scenario: actual savings depend on what you buy, what you use, food prices, and how your habits change.

What can I do with edible food before it becomes waste?

Start with what you already have: plan a meal around food that needs using, freeze suitable food, or safely share or donate unopened items. Composting is useful for unavoidable scraps, but preventing edible food from being discarded keeps the food available to eat in the first place.

Sources and related tools

The calculator follows the USDA distinction between edible food loss and non-edible parts such as peels, bones, and eggshells. See the USDA food loss and waste FAQs for definitions and the USDA consumer guidance for prevention ideas. No national dollar figure is used in the calculation.

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