Free engineering tools
Calculators for site engineers and technical offices that run right in your browser, with no sign-up and no email. Each tool explains its method and ratios with a worked example, and they are the same calculators you get inside Ta3mir.
Concrete and rebar
- Slab rebarSlab steel in kg and tonnes, and concrete, from area and thickness.
- Footing rebarFooting mesh steel from diameter and spacing, plus concrete, cement, sand and gravel.
- Column rebarColumn steel and concrete from section, height and count.
- Hollow-block slab rebarHollow-block slab steel, rib and topping concrete, and block count.
- Flat slab rebarFlat slab steel and concrete, with drop panels.
- Raft rebarRaft steel, reinforced and blinding concrete, and cement bags.
- Rebar weightWeight per metre, per bar and in total by diameter, with a table.
- Concrete quantityConcrete in m³ for footings, columns and slabs, with cement, sand and gravel.