Cement, Sand and Aggregate Calculator for Concrete
Wired White v1 Estimate cement bags, sand, aggregate and free water for small nominal-mix concrete pours. Includes geometry, wastage, loose-volume recipes and metric/US results.
Civil and construction
Site and building engineering: concrete, steel and brick quantities, bar bending schedules, house frame loads, retaining walls, road curves, earthwork volumes and plot areas. Each calc shows its method and the public sources behind it; a structural design still needs a licensed engineer.
Wired White v1 
