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 [email protected] for support or feature requests.
Download now and simplify your construction calculations!
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 [email protected] for support or feature requests.
Download now and simplify your construction calculations!
Show More >
Construction Calculator A1 / What's New in vUnknown
NEW: Electrical Calculations — 69 calculators in one place.
• Load Calculation — size a building's load, export the sheet with your company details
• Cable sizing, voltage drop, conduit & tray fill
• Breaker, RCD and motor protection sizing
• Lighting, earthing and lightning protection
• Solar, DG sets, UPS and batteries
• Wiring point, wire and conduit estimators
• Converters: mm²/AWG/kcmil, lux/fc
Inputs now sit two per row — less scrolling. Plus region-accurate concrete grades.
• Load Calculation — size a building's load, export the sheet with your company details
• Cable sizing, voltage drop, conduit & tray fill
• Breaker, RCD and motor protection sizing
• Lighting, earthing and lightning protection
• Solar, DG sets, UPS and batteries
• Wiring point, wire and conduit estimators
• Converters: mm²/AWG/kcmil, lux/fc
Inputs now sit two per row — less scrolling. Plus region-accurate concrete grades.
