Question: How can I determine how long my speech will take?
Answer: People talk at an average rate of 100-120 words per minute. Meanwhile, a typical double spaced, typed written page is 250 words.
So one double spaced, typed page equals two minutes when read aloud as a speech. You can use this ratio to determine approximately how long your speech will take when spoken aloud.
Bonus tip: This web site article explains three attention grabbing ways to start your next speech.