As we’ve said, paring knives are your go-to workhorses for kitchen tasks, so any size should work for most uses. However, there are some sizes that are naturally better suited for some tasks. For delicate, fine-detail work such as peeling skin off of grapes, tomatoes, strawberries, and more, you’re best with a shorter, three-inch paring knife. If you’re looking to chop small vegetables with a chopping board, a longer paring knife would naturally feel more comfortable. A 3” should can still be used for this, but you’ll find it easier to do with a 4” to 5” paring knife.