Construction Calculators
Stop guessing on material quantities. Calculate concrete, gravel, drywall, paint, and flooring in seconds — free, no account required.
Concrete Calculator
How much concrete do I need? Cubic yards and bags (60lb/80lb) from length, width, and depth.
Gravel Calculator
Cubic yards and tons of gravel for driveways and paths from area and depth.
Drywall Calculator
How many 4x8 drywall sheets do I need? From wall and ceiling area minus openings.
Paint Calculator
How much paint do I need? Gallons by wall area, doors, windows, and number of coats.
Flooring Calculator
How much flooring do I need? Square feet plus boxes of planks or tiles from room size and waste.