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
Learn to rewind or recoil electric motors through step-by-step instructions. Explore terminology related to windings, configurations, and components. Access diagrams and detailed explanations of insulators and insulation papers.
Perform calculations with arithmetic, SI and non-SI units, and physical constants. Support natural and SI units for scientific and everyday use. Evaluate expressions with functions like exp, arctan, and cosh.