How to read supermarket specials: unit pricing explained
The biggest number on a shelf ticket isn't always the most useful one. Learning to read the small print can help you work out what's really good value.
1. What is unit pricing?
Shelf tickets usually show a unit price as well as the sticker price. It's the price for a set amount, such as per 100g, per 100mL, per kilo, per litre or per item. It lets you compare products of different sizes on the same footing. The ACCC has information on unit pricing for shoppers (ACCC unit pricing page).
2. Compare sizes, not packs
Bigger packs are often cheaper per unit, but not always. Check the unit price on each size. Sometimes the smaller pack on special beats the big one.
3. Make sure you're comparing the same unit
Some products are priced per 100g and others per kilo or per item. Make sure both tickets use the same unit before you decide.
4. Read "was/now" specials carefully
A "was" price shows what the item cost before. Ask whether it's a real drop, and check the unit price on the special too.
5. Watch out for multi-buy traps
"Two for" or "buy more, save more" deals can be good, but only if you'd use it all. Check whether one item on its own is discounted too, and whether you'd actually save per unit.
6. Think about waste
A cheaper unit price isn't a saving if half of it goes in the bin. Buy bulk for things that keep, like pantry staples, and smaller amounts for fresh food.
The short version
- Look for the unit price on the shelf ticket.
- Compare the same unit across sizes and brands.
- Check whether a "was/now" special is a real drop.
- Only take a multi-buy if you'll use it all.
- Buy what you'll actually eat.
We don't list prices here, because they change and differ by state. Check the retailer's site for the current price where you are.