Spells in Harry Potter are always important. As such this is the main database for the spells. Click on the link to the left on the type of spells you wish to see. It will redirect to the list .
Spell Range:: The distance from which a wizard or witch can cast a spell is is 30 ft + 5 feet per two class levels. Going further is possible, but every 5 feet beyond this range adds a +2 to the casting DC of the spell.