Concrete Volume
Enter dimensions.
Expansion 3
Construction Calculators
Estimate concrete, rebar weight, roof pitch angle, and tile counts in seconds.
Rebar Weight
Uses kg/m = d² / 162.
Roof Pitch
Enter rise and run.
Tile Estimator
Enter values to estimate tile count.
Estimator Assumptions
These calculators are intended for quick planning and material pre-checks. Site conditions, waste rates, local code requirements, and supplier dimensions can change final quantities.
- Concrete values are simple geometric volume estimates.
- Rebar mass follows the common approximation kg/m = d^2 / 162.
- Tile output should be rounded up and validated against layout constraints.
Construction FAQ
Should I add contingency to material quantities?
Yes. Typical practice includes additional allowance for waste, cuts, breakage, and delivery or handling losses.
Can this replace a structural engineer's calculation?
No. These tools are for preliminary estimation and not a replacement for certified engineering design.