Grocery budget calculator
Turning a household food budget into per-person, per-meal numbers makes it comparable.
Monthly grocery spend
695.71
- Annual spend
- 8348.57
- Per adult-equivalent per week
- 47.06
- Cost per meal
- 2.24
- Per day
- 22.86
- Share of household income
- 15.46 %
- Adult equivalents
- 3.40
Show the working
- Weekly grocery spend = 160
- Adults = 2
- Children = 2
- Monthly household income = 4500
- Meals per person per day = 3
- Adult equivalents = 2 + 2 * 0.7 = 3.4
- Monthly grocery spend = 160 * 4.348214285714286 = 695.714
- Annual spend = 160 * 52.17857142857143 = 8348.57
- Per adult-equivalent per week = 3.4 > 0 ? 160 / 3.4 : 0 = 47.0588
- Cost per meal = 3.4 > 0 ? 160 / (3.4 * 3 * 7) : 0 = 2.2409
- Share of household income = 4500 > 0 ? 695.714 / 4500 * 100 : 0 = 15.4603
- Per day = 160 / 7 = 22.8571
Values are shown to six significant figures here; the arithmetic itself runs on exact fractions and is only rounded where a number is printed.
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The formula
- monthly = weekly x 52.178571 / 12
- children are counted as 0.7 adult equivalents for food
A month is not four weeks. Using 4.348 weeks per month rather than 4 avoids an 8% understatement.