Building & materials
Estimate material quantities and geometric dimensions. Work stays in your browser tab.
Tile box estimator
Estimate tile boxes for an area including a stated cutting allowance.
Paint quantity estimator
Estimate paint volume and whole cans from wall area, coats and product coverage.
Concrete slab volume
Estimate rectangular slab volume with a user-chosen ordering allowance.
Gravel mass estimator
Estimate bulk material mass from area, depth and a supplier-provided bulk density.
Wallpaper strip estimator
Estimate rolls using wall width, drop length and usable roll dimensions.
Flooring pack estimator
Estimate whole flooring packs for a rectangular room and waste allowance.
Straight fence post count
Estimate equal-span posts for a single open straight fence run.
Stair rise estimator
Divide a total rise into a whole number of risers near a chosen target.
Roof rise and slope
Calculate slope angle and length for a right-triangle roof section.
Ramp gradient calculator
Calculate a ramp gradient and travel length from a stated rise and run.