Realistic weekly grocery budget across your household.

Weekly grocery spending varies enormously by household — ranges from 40/person/week (very budget) to 100+/person/week (high-quality, whole foods). Average runs 55-75/person/week in 2026. Family economies of scale mean per-person cost typically drops 10-20% as household grows.

The calculator builds realistic budget from components: per-person weekly allowance × household size. Reduce for meals eaten out (not cooked at home, so less groceries needed). Add waste factor (typical household wastes 10-20% of food — factor this into realistic budget vs optimal).

Most households underestimate grocery spending. Actual spending over 3-month audit typically exceeds claimed budget by 15-30%. The calculator produces realistic figure to benchmark against.

How to use it

Input per-person weekly allowance, household size, average meals per week eaten out (per person), and realistic waste factor. The tool shows weekly grocery budget.

What the result means

Weekly total is realistic grocery budget. Per-person figure compares to national averages. Monthly/annual totals help budgeting conversations. Eating out heavily reduces groceries but increases food spending overall — consider total food cost not just groceries.

Run it with sensible defaults

Using per-person weekly of 60, household size of 4, meals out per person per week of 3, waste of 15%, the calculation works out to 236.57. Nudge the inputs toward your own situation and the output recalculates instantly. The defaults are meant as a starting point, not a recommendation.

The levers in this calculation

The inputs — Per-Person Weekly, Household Size, Meals Out Per Person Per Week, and Waste % — do not pull with equal force. Frequency and unit price pull the total in different directions. The biggest surprise for most people is how small recurring amounts compound into large annual figures — that's where this calculation earns its keep.

How the math works

Base is per-person × household size. Reduce for meals-out fraction (out of 21 weekly meals). Add waste percentage as realistic budget buffer. The working is transparent — you can verify every step yourself in the formula section below. No black box, no opaque "proprietary model".

Why run the calculation

Utility bills creep. Small annual increases stack into meaningful differences over a decade. Running this once a year and switching providers when the gap widens is one of the easiest ways to keep household costs in check.

What this doesn't capture

Usage varies month-to-month; tariffs change; discounts come and go. The figure here is a clean baseline — your actual annual bill will fluctuate around it. Use the calculation to benchmark providers, not as a prediction of a specific bill.