The Nail Calc has functions to compute the number of nails for a job (drywall, roofing, sheathing) and/or the number of nails associated with a weight when buying nails by weight.
Computes weight of a number of galvanized common nails based on the nail size and number of nails.
Computes the number and weight of roofing nails for a hip roof with a hip roof dormer based on the dimensions.