CoinMarket cap added a Bitcoin price canvertor and since then I stopped using preev and use Coinmarketcap for this purpose only because there I can check prices of every coin.
all you need to do is to open the page of a specific coin and scoll down little bit. you'll see the price canvertor there. the only cons in this that it just shows prices in USD
I believe that everyone knows how to use CMC, even beginners. it is not the essence, but the simplicity of use.
How many ads need to be loaded or unnecessary information on CMC before you find useful information about the current price of some coin?