How many meals do leftovers cover?

Count whole household meals from leftovers using your own portion planning unit.

Quantity only: no food safety, safe storage duration, nutrition, calorie or medical assessment. Check storage conditions, use-by dates and after-opening labels. Defaults are examples, not health standards. Portion is your planning unit, not a nutritional serving. Child and other multipliers must be supplied when those people are included. Partial portions do not count as a whole household meal. Planned difference: positive surplus, negative shortage.

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Method

Leftover portions = Batch total portions − Portions already eaten

Household portions per meal = Adults × Adult portion multiplier + Children × Child portion multiplier (required) + Other people × Other portion multiplier (required)

Whole meals covered = floor(Leftover portions ÷ Household portions per meal); Remaining partial portions = Leftover portions − Whole meals covered × Household portions per meal

Required planned portions = Household portions per meal × Planned meals (optional); Surplus / shortage portions (+ surplus / − shortage) = Leftover portions − Required planned portions

Portion is your planning unit, not a nutritional serving. Child and other multipliers must be supplied when those people are included. Partial portions do not count as a whole household meal. Planned difference: positive surplus, negative shortage.

Notes

This tool does not assess food safety. Do not judge food past its use-by date safe by appearance alone. Follow storage conditions, handling after opening and manufacturer labels. A passed best-before date alone does not mean immediate danger. Opened items come first only on the same date. No date changes or frozen-safe durations are inferred.