14 site calculators for Android · works offline · free
What it does
Open a calculator, type the numbers you measured, read the answer. Metric or
imperial. No account, no sign-up, no ads, and nothing is sent anywhere.
The calculators
Materials and volume
Concrete Quantities — slab, footing or column
Gravel — depth and area to tonnes
Soil — beds and fill by volume
Asphalt — area and depth to tonnes
Decking — boards, gaps and total run
Framing and layout
Stairs — rise, going, and every tread
Raked Walls — stud lengths up a sloping top plate
Baluster Spacing — even gaps that meet the code
Equal Spacings — split any run into equal parts
Running Measurements — set out from one datum
Check Square — 3-4-5 and diagonals
Angles and levels
Pitch — degrees, ratio, percent and rise per metre