Travelling to USA???

I am planning on going travelling to the USA and was wondering what is the maximum length of time you can stay on a brtish passport before you need a visa? I don't plan to work while im there.

You may stay a maximum of 90 days without a visa. If you come under the visa waiver program, you may not applu for an extension. if you anticipate needing more than 90 days, you may apply for a B-1 visa. See website below for info. have a great trip!