Hopped extract

[Jbug]

Does any one know how many IBUs I'll get out of 3lbs of muntons hopped extract? ( in 5 gal of wort )... None of the recipe builder sites seem to add that in the equation! Thanks
Josh

[Jbug]

Just incase anyone asks again you get 4-6 IBUs per pound per 5gals... I didn't want to use this shit but my local shop ran out of extract :-/ ... Hope the beers good!