What RSA key length should I use for my SSL certificates?

Question

I\'m in the process of creating a CSR, and I wonder which is arguably the best length for my RSA key.

Of course, 384 is probably too weak, and 16384 is probably too

Answer 1

I needed to create several new SSL certs and was not satisfied with the answers above because they seemed vague or out dated so I did a little digging. Bottom line the selected answer is correct use "2048-bit keys... longer is meaningless".

Increasing the bit length to 4096 adds a potentially meaningful load to your server (depending on your existing load) while offering basically an insignificant security upgrade

If you are in a situation where you need longer than a 2048 bit key you don't need a longer bit length, you need a new algorithm