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!