We all know about unit cost. Yeah.

But sometimes I’m exhausted and get mentally foggy while working it out manually (when not listed) and also the unit prices in supermarkets can be listed for different sizes and measurements (like one is per kg and the other is per 100 grams) so you have to convert things. Just for fun.

So I found a tool where you can just plug multiple items of different sizes or listed costs in.

Or put in the unit cost per amount and easily tot it up.

This one looks complicated but for example just pick the price and number for the first product (I did $37 for 750ml pet shop biological cleaner), add another item ($36.30 for 1L of biological cleaning concentrate or 20L when reconstituted) and it spits out the unit price for both and tells you which is cheaper.

Well duh. The largest size pack of something is cheaper always right? Well not always. I was comparing bulk shampoo sizes and noticed that the cheapest unit price was somewhere in the middle.

So while it seems obvious what the best deal would be it does pay to do a quick check of things.

Here’s another just for when things come in pieces or multipacks like apples, screws, toilet paper rolls or chocolate bars. The previous one does have that feature too but the buttons on this are a bit less cluttered on the eye. https://www.priceperpiece.com/