Average grocery cost for one person in NZ: what the numbers actually say
There is no official figure for what one person spends on groceries in New Zealand. Stats NZ measures food per household, not per person: $300 a week, or 18.7% of average weekly household expenditure, for the year ended June 2023. The University of Otago separately prices a basic diet, which is a research floor rather than a target. Neither is a personal number.
Food is where most people feel the squeeze first, because it's the one big cost you touch every few days. Rent lands once. Power lands once. Groceries land constantly, which makes them feel like the thing you should be able to control, and that makes a lot of people feel worse about the number than they need to.
So this post does two things. It says what the data actually shows, and it says what the data does not show, because the second part is where most grocery advice goes wrong.
What does one person spend on groceries in NZ each week?
Nobody publishes that number, and it's worth saying plainly rather than filling the gap with an estimate.
Here is what does get measured. Stats NZ's Household Economic Survey puts food at 18.7% of average weekly household expenditure, or $300 a week, for the year ended June 2023. That is per household, and households average more than one person, so dividing it by anything gives you a number Stats NZ never published. The expenditure side of that survey is also collected every three years, not annually, and it isn't broken down by household size for food.
The other well-known source, the University of Otago's Food Cost Survey, answers a different question again: what a basic diet costs at minimum, rather than what people spend.
So the weekly per-person ranges you see quoted around the internet are working rules of thumb. They are not statistics, and the ones we could check don't trace back to an official source.
That leaves the honest version. Which supermarket is closest to you, whether you can carry a large shop home or buy in smaller lots, how much of your food is fresh, how much cooking you do, whether you eat a specific diet, and how often you get caught out and buy lunch — those move your grocery spend far more than any published average. None of them are character flaws. They're logistics. Two people with identical incomes can sit $50 a week apart on groceries and both be doing fine.
What does a "minimum" food cost actually mean?
This is the part worth being careful about, because a minimum gets quoted as though it were a recommendation.
The University of Otago's Department of Human Nutrition runs a Food Cost Survey that prices a basket of food designed to meet nutritional needs, across Auckland, Wellington, Christchurch and Dunedin. It is a genuinely useful piece of research. It is also a floor: the cost of a basic diet that meets requirements, priced in supermarkets at a point in time.
That is a different question from "what do people spend". A floor tells you what the food itself costs if nothing goes wrong. It does not include the shop you had to do twice because you couldn't carry it all, the item that was out of stock, the dietary need, or the week you were too tired to cook.
Some scale, so the floor isn't an abstraction. In the 2023 survey, a basic diet came to $88 a week for an adult man and $75 for an adult woman across New Zealand, with Auckland at $86 and $73 and Wellington at $90 and $77. Those are means with a standard deviation of several dollars either side, and the report describes food costs for Auckland, Wellington, Christchurch and Dunedin as similar, so treat them as a rounded floor rather than a city ranking.
The floor also moved sharply. The same basket for an adult man in Auckland tracked between $64 and $75 a week from 2014 to 2020, then reached $86 in 2023: a rise of $11 in Auckland, and $16 to $18 in Wellington, Christchurch and Dunedin over the same three years. The gaps in that series are worth knowing about too. No prices were collected anywhere in 2022, because collection coincided with the Omicron outbreak, and Auckland has no 2021 figure because only one supermarket could be surveyed when the city moved to Level 3. 2023 is the most recent edition, so anything you read quoting it is describing prices from that year or earlier.
And the survey is explicit about its own limits here. The 2023 report says food costs for different household sizes can be worked out by adding up the age and gender groups, then adds: “weekly food costs for single and smaller household sizes (less than three) may be underestimated.” The people most likely to go looking for a one-person grocery figure are exactly the people the method is least confident about.
Read together, that's the honest picture. The floor is real, the floor moves, and the survey itself says the floor is least reliable for a household of one. If you're spending $130 a week and you see a minimum figure somewhere between $75 and $90, it is not telling you how far over you are. It's answering a different question, and it says so.
You're flatting
Shared costs cut both ways. A flat that shares staples, oil, spices, rice and cleaning products can push each person's food spend down noticeably, because those are the items where buying once for four is much cheaper than buying four times.
The catch is that shared shops are hard to see. If your share leaves your account as a transfer to a flatmate rather than a supermarket transaction, your grocery figure looks lower than your actual food cost, and the gap turns up somewhere else in your month.
Worth knowing which of the two is happening before you compare yourself to any average.
You live alone
Living alone is the hardest case for per-person food cost, and that's a pricing structure rather than a habit. Bulk sizes are cheaper per unit, single portions usually aren't, and fresh food bought for one person has a way of going off before it gets used.
A single-person shop that looks high next to a published average is common and unremarkable. If you're comparing yourself to a household figure divided by the number of people in it, you're comparing against a bulk discount you can't access.
You shop for two but pay separately
Two people buying food together and splitting it afterwards get most of the bulk advantage, but the transaction record gets messy fast. One person pays, the other transfers a share, and neither account shows the true figure.
The practical fix is picking one view and sticking to it: either track the full shop and the reimbursement as separate things, or track only your share. Mixing the two across months is what makes the number stop being comparable to itself.
Are grocery prices still rising in New Zealand?
Yes, but much more slowly than they were. Food prices rose 1.9% in the 12 months to July 2026, according to Stats NZ, which is the smallest annual increase since December 2024. Grocery food specifically rose 1.6%, fruit and vegetables were down 1.0% over the year, and restaurant meals and ready-to-eat food led the increases at 3.2%.
That matters for how you read older figures. Anything quoting food inflation from early 2026 is describing a faster-rising period than the one we're in now. It also matters for expectations: slower increases are not decreases. Prices are still higher than last year, just by less.
What does your own grocery number look like?
The useful comparison isn't you against an average. It's your current shop against a figure you'd actually like to hit, so you can see what the gap is worth over a year before deciding whether it's worth chasing.
The fields below are monthly, so multiply your weekly shop by about 4.33. A $130 week is roughly $560 a month, and a $110 week is roughly $480. Leave the one-off cost at zero unless switching supermarkets genuinely costs you something, like a delivery fee or a longer drive.
Compare two monthly costs
The difference between two monthly amounts, over a month and a year. It compares only the numbers you enter — it does not account for contract terms, exit fees, or differences in what you get.
A difference of $80 a month.
Over a year that is $960.
This is arithmetic, not advice. It tells you what a difference of a given size adds up to, and nothing about whether that difference is achievable or worth making in your situation.
How much of your grocery money is actually yours to spend?
Here's the thing a weekly grocery figure can't tell you on its own: whether it fits.
$130 a week on food is comfortable in one month and tight in another, and the difference usually has nothing to do with food. It's the annual insurance premium, the rego, the two Afterpay instalments that land the same week as rent. Your bank balance won't warn you, because a balance shows what's in the account, not what's already spoken for.
That gap is what Safe to Spend closes. It's one honest number: what's genuinely spendable once your bills, instalments and savings goals have been taken out. Groceries stop being a source of low-level guilt and become a line you can actually see against everything else.
Worked example, illustrative only. Say you're paid fortnightly, take home about $2,100 a fortnight, and rent is $1,200 of it. Power, phone and insurance come to $260, and an Afterpay instalment takes $45. That leaves $595 for the fortnight, or roughly $297 a week, before petrol, before anything social. A $130 grocery week uses about 44% of that. A $100 week uses about 34%. Same person, same pay, and the decision looks very different depending on which fortnight the annual bills land in. Numbers are an example, not a recommendation.
Owdyn does that arithmetic for you. You can import statements by CSV from any NZ bank on every plan, including Free, or connect your bank on Plus or Wise through Akahu, New Zealand's accredited open-banking intermediary, and let transactions arrive on their own. Sync covers the institutions Akahu supports; CSV is the path that works with every bank. The app is free during beta, and paid plans open at launch.
Frequently Asked Questions
Is $100 a week a lot for groceries for one person in NZ?
There's no official benchmark to measure it against, because no agency publishes a per-person grocery figure for New Zealand. Whether $100 is a lot depends on your rent, bills and commitments rather than on the grocery number itself. The same $100 can be easy in one month and tight in the next, which is the more useful thing to know.
Why is my grocery bill higher than the averages I see online?
Usually because the average is answering a different question, or isn't an official average at all. Stats NZ publishes food spending per household ($300 a week for the year ended June 2023), which carries a bulk-buying discount a single-person shop can't access. Other quoted figures are research minimums for a basic diet, and many are simply estimates with no source behind them. Location, dietary needs and how often you top up move your own number too.
Does the Otago Food Cost Survey say what I should spend on food?
No. It prices a basket designed to meet nutritional needs, which is a floor rather than a recommendation or a budget. It's also published periodically, and the most recent edition available is 2023, so it describes prices from that year. Treat it as a reference point for what food costs at minimum, not as a target to measure yourself against.
Are food prices still going up in New Zealand?
Yes, but slowly by recent standards. Stats NZ reported food prices up 1.9% in the 12 months to July 2026, the smallest annual increase since December 2024. Grocery food rose 1.6% and fruit and vegetables fell 1.0% over the year, while restaurant meals and ready-to-eat food rose 3.2%.
How do I work out what I actually spend on groceries?
Add up three months of supermarket transactions and divide by 13 rather than judging from a single week, because one big stock-up shop will distort anything shorter. Include top-ups at the dairy and petrol station, and decide up front whether flatmate transfers count as food or not. Consistency matters more than precision here.
Sources
All URLs checked 11 September 2026.
- Stats NZ, Selected price indexes: July 2026: food prices up 1.9% in the 12 months to July 2026, the smallest annual increase since December 2024
- Newswire, food price inflation falls to 1.9 percent (17 August 2026): the component breakdown, grocery food 1.6%, fruit and vegetables down 1.0%, restaurant and ready-to-eat food 3.2%
- Stats NZ, Household expenditure statistics: Year ended June 2023: food at 18.7% of average weekly household expenditure, or $300 a week. Household expenditure is collected every three years, and food is not published by household size
- University of Otago, Food Cost Survey, Department of Human Nutrition: what the survey measures, which cities it covers, and confirmation that 2023 is the most recent edition
- University of Otago Research Archive, Information Package for Users of the New Zealand Estimated Food Costs 2023 (published 27 March 2023): the survey report itself. Table 3 gives the 2023 basic-diet costs quoted above ($88 a week for an adult man and $75 for an adult woman nationally; $86 and $73 in Auckland, $90 and $77 in Wellington). Table 4 gives the 2014–2023 series, in which the Auckland adult-man figure ranges from $64 to $75 across 2014–2020 before reaching $86 in 2023. The report also states that "weekly food costs for single and smaller household sizes (less than three) may be underestimated"
About Owdyn. Owdyn is a budgeting app built in New Zealand by Owdyn Limited, founded by Arjun Kataria. It shows one honest number, Safe to Spend: what's genuinely spendable after your bills, instalments and savings goals. Free to start, no credit card.
