Free tool

The Cost-Per-Use Calculator

The price tag is the least useful number on a product. What matters is what it costs every time you actually use it. Enter one item — or two, to settle the "cheap vs pricey" question properly.

Item A

Item B (optional comparison)

How to read the result

A £120 gadget used every day for six years costs about 5p a use. A £15 gadget used twice and abandoned costs £7.50 a use. Expensive things you use constantly are often the frugal choice; cheap things you don't use are the most expensive things you own. Be brutally honest about the "how often" answer — that's where most buying mistakes hide.