The calculator
What it really costs.
Divide the price by the number of times you will wear it. Put the good one next to the cheap one, and the cheap one usually loses.
Start from an example
The good one
$
27¢
The cheap one
$
53¢
Prices for named products were checked on September 28, 2026 on each brand’s own store. The wears and lifespans in the examples are Control’s estimates, so change them to match your own life.
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