Calculate concrete quantities for floor slabs and foundations including aggregate, sand, and cement. Estimate materials for DIY projects and building trades. Include a VAT calculator and a brain-training game.
by Robert Thompson★ 1.45 ratingsUtilities$2.99Data updated 2026-09-08
Manage anxiety with guided breathwork exercises, multi-touch sand drawing for relaxation, and satisfying stress-relief games. Engage in creative pixel art for mindful expression. Practice progressive muscle relaxation with visual guidance.
Calculate reinforcement area for beams, slabs, and shear reinforcement. Input total number of rebars or spacing between them. Supports US, CA, and European rebar sizes in metric and non-metric units.
