9 free calculators across 8 categories. Browse by category below, or use search to jump straight to a tool.
Work out how much ready-mix concrete a slab, footing, or column needs.
Estimate gravel volume and weight for a driveway, path, or sub-base.
Find out how many bags or cubic yards of mulch a garden bed needs.
Work out how many boxes of flooring to buy for a room, with waste included.
Estimate how much paint a room needs, based on wall area and coats.
Estimate roof area, squares, and shingle bundles from a plan footprint and pitch.
Estimate how many deck boards you need for a given deck area.
Work out how many plasterboard or drywall sheets a room needs, including the ceiling.
Roll materials, labor, delivery, waste, and optional markup into a planning total.