Hi Vanja, and
The general consensus, I think, is normally about 80,000-100,000 words for a first novel (for adults -- the rules are different for YA or children's lit). It can be a bit longer (up to 120,000 words) in some genres (I think genres like political fantasy or epic fantasy or historical fiction, where the reader expects a great deal of setting detail and possibly a large cast), but longer than 100,000 words will make it a harder sell even in those genres.
Here's a wonderful answer from a couple of years ago:
I know of three fantasy writers who sold debut novels of around 200,000 words. This is rare, though. All three novels were really extraordinary (and all three writers have become very successful).
Once you're established with a book or two, length is less of an issue. But it's still a concern. Some fantasy/SF publishers have begun to release longer books by established writers in two or three volumes.
I think that if you're querying with a novel longer than 150,000 words--even in the fantasy market, which generally is tolerant of greater lengths--you're going to get rejections based on your word count alone. So if you can trim it down, or split it in two, it's certainly in your interest to do so.
Cutting can be very hard--believe me, I know; I write long, and I've been asked to cut every single one of my books. I always think I can't do it, and I always find a way--and for the most part, I think the books benefit. One thing that's been very helpful to me is to ask my beta readers to suggest places they feel could be cut or tightened--they always see things I don't.
- Victoria
Hope that helps! Now, very general questions like this have normally been answered several times over. I know the size of the forum may be daunting, but the regulars can get a bit cranky about answering the same questions every few weeks, so you might want to start off by looking through some threads
Here's
a list of old threads about novel length to start you off. And I found that in the
FAQ, Archives, and helpful links thread, which I highly recommend. A lot of the links there are useful to everyone.
Learn writing with Uncle Jim is wonderful but pretty long, so you may want to start off with the
Index to that thread.
There's also an entire forum for the
basic writing questions that we all have from time to time.
Good luck with your novel, and I hope you have a great time here!