[RPG] Does the Spell Sniper feat affect the size of a spell’s area of effect

area-of-effectdnd-5efeatsspells

Would the Spell Sniper feat affect the width of the lightning bolt spell, which is normally 100 feet long and 5 feet wide? Would it also increase the explosion range of fireball and such spells?

Best Answer

Spell Sniper doubles the range of spells, not the area of the spell's effect. In addition, Spell Sniper only doubles the range of spells that require an attack roll.

When you cast a spell that requires you to make an attack roll, the spell’s range is doubled.

In the case of your two examples, Lightning Bolt and Fireball, neither of these spells require an attack roll, they require a saving throw. As such their range is unaffected by the Spell Sniper feat.