All Calculators

Free interactive calculators for every stage of your home project.

Project Planning

Enter a room's dimensions once, then continue into Paint, Flooring, Drywall, or Insulation with them pre-filled.

Calculate concrete volume and ready-mix or bag quantities for slabs, footings, and posts.

Calculate how much paint you need for a room, including doors, windows, coats, and cans.

Calculate how many drywall sheets, screws, and joint compound buckets you need for a room.

Calculate how many rolls, batts, or bags of insulation you need for an area.

Calculate how many planks, tiles, and boxes of flooring you need for a room.

Calculate how many tiles, boxes, and how much grout you need for a tiling project.

Calculate how many deck boards you need, compared across standard board lengths.

Calculate how many fence panels and posts you need, and concrete for the post holes.

Calculate roof surface area from footprint and pitch, and material bundles needed.