Unit Price Supermarket Cheat

A mobile-first tool to compare if the 'Family Size' is actually cheaper per gram—spoiler: often it isn't!

Your data stays private - we don't store your calculations

🏷️ Why "Bigger Is Better" Is Often a Myth

Studies show ~30% of the time, smaller sizes have a lower price per unit than larger "value" packs. Stores know you assume big = cheap, so they don't always offer genuine discounts.

📉 Shrinkflation Alert

Instead of raising prices, manufacturers shrink package sizes. Common examples:

Ice Cream
64 oz → 48 oz
Peanut Butter
16 oz → 14 oz
Cereal
24 oz → 19.5 oz

🧠 Supermarket Pricing Tactics

Bulk Buying Trap

"Value Pack" labels on products with higher unit prices than standard size.

Multi-Buy Pricing

"2 for $5" makes you buy more—often at the same per-item price.

Anchor Pricing

$12 organic version makes $5 regular look like a bargain.

Mixed Units

One shows $/oz, another $/100g—making comparison impossible.

💰 Real Savings Add Up

$20/trip
Saved by checking unit prices
$1,000+/yr
Annual savings (weekly shopping)

💡 Pro Tip: Store Brands

Private label products are often made by the same manufacturers as name brands. Store brands typically cost 20-40% less per unit with identical quality.

Frequently Asked Questions

Is the family size always cheaper per unit?
Surprisingly, no! Studies show that larger packages are often NOT the best deal. Shrinkflation (reducing package size while keeping prices the same) and strategic pricing mean individual or medium sizes can be cheaper per gram than 'value' sizes.
What is shrinkflation?
Shrinkflation is when manufacturers reduce product size while keeping prices the same or even raising them slightly. It's a hidden price increase that makes unit price comparison essential for smart shopping.
Where can I find unit prices in stores?
Most supermarkets are required to display unit prices on shelf labels. Look for the small 'price per oz' or 'price per 100g' number on the shelf tag. If it's not there, use our calculator on your phone while shopping.
Should I always buy the cheapest per unit option?
Not always. Consider storage space, expiration dates, and whether you'll actually use it all. A bulk deal that expires before you use it isn't really a deal.
How much can I save by comparing unit prices?
Regular unit price comparison can save 10-30% on your grocery bill. Over a year, that can add up to hundreds or even thousands of dollars for a typical household.