I'm Jeroen, from the Netherlands and I'm currently learning Japanese.
I'm using Anki, and it's a great tool, and I came across this sentence in the Japanese Core 2000 #1 set:
彼{かれ}の日本語{にほんご}のレベルは私{わたし}と同{おな}じくらいだ。
I understand most of the sentence and vocabulary. the only new word to me is 位{くらい}. I know that the particle marker と is like "and" in English, kind of, and I understand that 彼の日本語のレベル is one part of the sentence. I also know that だ is the casual form of です.
I'm asking if somebody could break the sentence down for me, grammarwise, so I understand it and can make a sentence like it myself.