Updated Aug 23, 2026 · v2026.08.23
Construction calculator for concrete, rebar, bricks, and material estimates.
Construction Calculator A1 – The Ultimate Civil Engineering Tool Construction Calculator A1 is a complete civil engineering toolkit for engineers, contractors, architects, site supervisors, quantity surveyors (QS) and real estate professionals. 500+ calculators take you from material estimation and RCC design all the way to a client-ready Bill of Quantities — on your phone, tablet, Apple Watch and the web. IDEAL FOR ✔ Civil Engineers & Contractors – RCC, beam, column, footing & reinforcement ✔ Quantity Surveyors & Estimators – Fast, accurate material take-offs ✔ Site Supervisors & Project Managers – On-site calculations and costing ✔ Architects & Builders – Area, volume and design measurements ✔ DIY Home Builders & Real Estate Professionals – Land and plot area ★ NEW — BILL OF QUANTITIES (BOQ) ✔ Add any calculation result straight to a BOQ ✔ Organise work by project, track total value and % priced ✔ Professional BOQ report with your company header and signature ✔ Export as PDF or Excel and send to clients ★ NEW — AUTOMATIC DRAWINGS ✔ Calculators generate a dimensioned drawing of what you entered ✔ Brickwork, steel/BBS shapes, concrete sections, excavation, stairs and more ✔ Drawings and a DIMENSIONS/QUANTITIES panel included in every PDF report ★ NEW — MATERIAL PRICE LIBRARY ✔ Store your own material rates in your own currency ✔ Rates auto-fill into cost fields across the app ✔ Six regional presets with local materials and units ★ NEW — LEARN: STUDY & QUIZ ✔ Civil engineering articles, checklists and reference charts ✔ Topic quizzes with instant explanations ✔ Daily streaks, XP, stars and achievement badges QUANTITY CALCULATORS ✔ Concrete – slab, beam, column, footing, staircase, retaining wall, culvert ✔ Steel & BBS – reinforcement weight, cutting length, bar bending schedules ✔ Brick, Block & Plaster – walls, bonds, arches, AAC/CLC blocks ✔ Flooring, Tile & Plywood ✔ Paint – litres/gallons with coats and coverage ✔ Water Tank – rectangular, cylindrical, spherical, capsule and more ✔ Excavation & Backfill, Anti-Termite, Shuttering, Plum Concrete ✔ Roofing – area, pitch, rafter length, gable and flat roofs ✔ Infrastructure – road, rail, dam, sewage, water supply ✔ Construction Cost Estimator with breakdown charts and client quotations AREA & VOLUME ✔ Plot area, rectangle, square, triangle, circle, trapezoid, polygons ✔ Cube, cone, cylinder, sphere, prism, pyramid, frustum and more ✔ Draw Shape and GPS Area for irregular plots UNIT CONVERTER ✔ Length, area, volume, weight, pressure, power, speed, time, fuel, angle, density ✔ Feet-inch-fraction construction calculator with a running tape SAVE, SHARE & SYNC ✔ Save calculations, add notes and photos, organise in folders ✔ Export PDF and Excel reports with your company logo and signature ✔ Google Drive and iCloud backup ✔ Cloud sync across your devices (Pro) ✔ Use the same account on the web WHY CHOOSE CONSTRUCTION CALCULATOR FREE ✔ Metric & Imperial – switch instantly in any calculator ✔ Works offline – calculations need no internet ✔ 16 languages ✔ Light and dark themes ✔ Home screen widgets and quick actions ✔ Clean interface built for the jobsite FREE VS PRO Free includes 5 calculations per day, 3 favourites and the core calculator set. 🔓 Upgrade to Pro for: ✔ Unlimited calculations ✔ No ads ✔ Unlimited favourites, recents and custom formulas ✔ Draw Shape & GPS Area for irregular plots ✔ Advanced area and volume shapes ✔ Specialist tools – drywall, deck stain, vinyl fence, ladder, man-hours, arch ✔ Cloud sync across devices Tip: refer a friend and get 24 hours of Pro free. NEED HELP OR HAVE SUGGESTIONS? We value your feedback. Contact constructioncalculatorallinone@gmail.com for support or feature requests. Download now and simplify your construction calculations!
6 years on Google Play
This app isn't currently appearing in any tracked top charts.