Swedish salaries, SEK, and purchasing power

I am a Dutch engineer who has been in the US for pretty long. I obtained a PhD from a well-known university in California some years back. I am tired of the US and I am moving back to EU. I have a nice offer to move to a permanent post funded by the government in the Uppsala-Gavle area.

I have been told I will get an official salary offer quite soon, in the region of 48k SEK / month. That is a bit less than 50k / month or 600k / year, which is often referred to as a very good Swedish salary. When I turn this into a net salary using a tax calculator, I get around 31-2k SEK / month. Questions:

  1. Are my calculations roughly correct? I imagine I still need to subtract pension contributions?
  2. When I turn this into Euro, I just get 2600 €. That is a pretty low salary in €. Is that because the exchange rate is distorted now and the purchasing power inside Sweden is much higher in practice?

PPP salary calculators don't agree with that point. For instance, a 31k SEK salary is estimated to be equal to 2480 € in Germany, i.e. pretty low. Perhaps these calculators are flawed.