how many gallons are in a bag of chicken feed?

[loveblackstars]

I need to know the amount of gallons that are in my 50 lbs bag of chicken feed so I can calculate so numbers!
Thanks in advanced!

 

[ChickensAreSweet]

For the horse scoops (three quart but hold about 2 1/2 quarts) that I use- I would estimate about 10 scoops per 40 lb bag. This is just a guess and may be off.

I use the Miller brand ones.

 

[ScouterJoe]

I put my feed into 5 gallon buckets to keep the mice out. I'm just getting back in, and it's been 2 years since I've had girls. It seems I could get a 50 pound bag of feed into two 5 gallon buckets.