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Finance Calculators

How to cut your grocery bill: 10 practical habits

Groceries are one of the few big spending categories you control every week. You do not need extreme couponing; a plan, a list and a few habits at the shelf can make a visible difference to the bill without making you eat worse.

3 min read Reviewed

On this page
  1. The short answer
  2. Ten habits that work
  3. Do the unit-price sum
  4. Waste less food
  5. Make the list easy to keep
  6. Frequently asked questions
  7. Try these tools

The short answer

Plan meals around what you already have, shop from a list, compare the price per kilo or litre rather than the pack price, buy staples in sensible bulk, and throw less away. Do those five things consistently and the weekly bill falls without a big change to how you eat.

Food you throw away is money you spent twice: once at the till and again in the bin.

Ten habits that work

  1. Plan the week’s meals before you shop.
  2. Check the fridge, freezer and cupboards first, and use what is about to expire.
  3. Shop from a written list, grouped by section, and stick to it.
  4. Do not shop hungry; it adds unplanned items.
  5. Compare the unit price (per kg, per litre) and not just the pack price.
  6. Buy staples that keep, such as rice, flour and pulses, in larger packs when you will use them.
  7. Choose seasonal fruit and vegetables, which are usually cheaper.
  8. Try the store’s own brand for basics.
  9. Cook larger batches and freeze portions.
  10. Track what you spend each month so you can see the effect.

Do the unit-price sum

Bigger packs are not always cheaper. Divide the price by the weight or volume to compare fairly. For example, a 500 g pack at 90 costs 0.18 per gram, while a 750 g pack at 120 costs 0.16 per gram, so the bigger pack is cheaper per gram. Only buy it if you will use it before it spoils.

PackPricePrice per 100 g
500 g9018.00
750 g12016.00
1 kg17017.00

Amounts here are made-up numbers to show the method. Use the prices on your shelf.

Waste less food

  • Store things properly: keep herbs, leafy greens and bread where they last longest.
  • Put older items at the front of the fridge and cupboard.
  • Use leftovers for the next day’s lunch.
  • Freeze bread, cooked rice portions and overripe bananas before they spoil.

Make the list easy to keep

A list is only useful if you actually keep it up to date. Listino, the free Android app from Robince Studio, lets you build lists with categories and units, share them with your household so nobody doubles up, and use them offline in the shop, syncing again when you are back online.

Frequently asked questions

What is the easiest way to save money on groceries?

Plan meals, shop from a list, check what you already have, and compare unit prices. These habits reduce impulse buying and waste.

Are bigger packs always cheaper?

No. Divide the price by the weight or volume to compare. A big pack is only a saving if you will use it before it goes off.

How do I stop impulse buying at the supermarket?

Shop with a list, eat before you go, and avoid browsing aisles that are not on the list.

How much food waste is normal?

Some waste is unavoidable, but planning meals and storing food properly cuts it a lot.

Can a shopping list app help me spend less?

It can, by keeping one organised list that the whole household shares, so you buy what you need and do not duplicate items.

Try these tools

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