Free DIY & home project calculators
Know how much to buy before you drive to the store. Every tool shows its formula, worked examples, and the manufacturer figures behind it.
Paint Calculator
How many gallons of wall paint you need.
Mulch & Soil Calculator
Cubic yards and bags of mulch, soil or compost.
Concrete Bag Calculator
How many 40–90 lb bags of concrete for a slab or pad.
Tile Calculator
Tiles and boxes for a floor or wall.
Fence Picket & Post Calculator
Posts, sections and pickets for a straight fence run.