On the average, one bushel of apples should yield about 3 to 3 1/2 gallons of cider. This assumes a good press. A bushel of apples is 42-48 lbs The above is for a 48 lb bushel. So you need 2 to 2.5 bushels for 5 gallons with some left over. Its better to have more than not enough.
or for one gallon of apple, cider you will need 16 pounds of apples, more or less.
Primary: 3 gallon cider S-04
Secondary: Valentine Apfelwein Clone 1 Gal
Bottled: Halloween Apfelwein Clone 1 Gal
On Deck: 90 Shilling Clone