Estimate your weekly and monthly grocery costs based on your household composition, spending level, and dietary needs. Per-person costs are derived from the University of Otago Department of Human Nutrition food cost survey, the standard benchmark used by government agencies and budget advisors across New Zealand. These figures cover home-prepared food only and do not include takeaways, eating out, or non-food grocery items.
Add each household member. Default is a family of four.
The following figures are indicative weekly food costs per person based on the University of Otago Department of Human Nutrition food cost survey methodology. They represent the cost of a nutritionally adequate diet prepared at home from standard supermarket ingredients.
| Person | Basic ($/wk) | Moderate ($/wk) | Liberal ($/wk) |
|---|---|---|---|
| Child (5-10 yrs) | $45 | $60 | $80 |
| Teenager (11-17 yrs) | $55 | $75 | $100 |
| Adult male (18-64) | $65 | $90 | $120 |
| Adult female (18-64) | $55 | $75 | $100 |
| Elderly (65+) | $50 | $70 | $90 |
These figures are approximate and reflect typical NZ supermarket prices. The "basic" level covers a nutritionally adequate but limited-variety diet. "Moderate" reflects a typical New Zealand diet with reasonable variety. "Liberal" includes more premium products, greater variety, and higher-quality ingredients.
| Diet Type | Adjustment | Reason |
|---|---|---|
| Standard (mixed) | No change | Baseline |
| Vegetarian | -10% | Plant proteins cheaper than meat |
| Vegan | -15% | Whole-food vegan is cheaper; specialty products can add cost |
| Gluten-free | +20% | Premium on gluten-free bread, pasta, flour |
| Organic | +40% | Organic produce and products carry significant premiums |
| Halal | +5% | Slight premium on certified halal meat |
Sources: University of Otago Department of Human Nutrition food cost survey. Stats NZ Food Price Index (stats.govt.nz). Stats NZ Household Economic Survey. Consumer NZ supermarket pricing research.
This calculator provides indicative estimates only. Actual grocery costs depend on your specific food choices, shopping habits, retailer, and location. Per-person figures are derived from the Otago University food cost survey methodology and should be treated as a guide for budgeting purposes, not exact amounts.
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