NZ Grocery Budget Calculator

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.

Updated April 2026  Based on University of Otago food cost survey data and Stats NZ Food Price Index.

1. Your Household

Add each household member. Default is a family of four.

+ Add person

2. Adjustments

Your Estimated Grocery Budget

Weekly (Food)
-
Before adjustments
Weekly (Adjusted)
-
Diet + region applied
Monthly
-
x 4.33 weeks
Annual
-
x 52 weeks

Household Breakdown

Base weekly total-
Dietary adjustment-
Regional adjustment-
Non-food items-
Adjusted weekly total-

Spending Level Comparison

Basic (budget)-
Moderate (typical)-
Liberal (premium)-
Saving: basic vs moderate-
Extra: liberal vs moderate-
Annual difference (basic vs liberal)-
Summary: Add household members above.

Weekly Food Costs Per Person in New Zealand

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.

PersonBasic ($/wk)Moderate ($/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.

Dietary Adjustments

Diet TypeAdjustmentReason
Standard (mixed)No changeBaseline
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

Assumptions and Limitations

Related Calculators

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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