You have to take into account that cost of healthcare, cost of living and that Europeans typically don't have student loans to pay off.
The seemingly only place that’s replicable is in Switzerland at a handful of companies (Google and some small other companies) and that’s not even in the EU.
You literally don't, since companies provide this. Unless of course you're accounting for the better healthcare you'd receive in the US?
> cost of living
Where most IT jobs are based in europe it isn't cheap to live at all..