Construction Calculator A1
Construction calculator app
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
NEW: Ask A1, your AI site assistant. Ask in plain words and get concrete, steel and brick quantities from the app's own calculators. 5 free AI credits every month.
The #1 construction calculator trusted by 1M+ contractors, builders, and engineers worldwide.
Construction Calculator A1 — the complete civil engineering toolkit for
contractors, builders and engineers. 500+ calculators, from a single slab to a
client-ready Bill of Quantities.
CONCRETE CALCULATOR
• Slabs, footings, columns, beams, stairs, walls & culverts
• Instant material quantities: cement bags, sand, aggregate
• Mix ratios and grade selection for any specification
REBAR & STEEL CALCULATOR
• Bar Bending Schedule (BBS) with shape codes and cutting lengths
• Weight calculator for metric and US bar sizes (#3–#11)
• Lap length, cover & spacing calculations
• Steel tonnage for structural estimates
FEET-INCHES CALCULATOR
• Add, subtract, multiply, divide in feet-inches-fractions
• No decimal conversion needed
• Running tape you can review and reuse
BILL OF QUANTITIES (BOQ) — NEW
• Send any calculation straight to a BOQ
• Organise by project, track total value and % priced
• Professional report with your company header and signature
• Export as PDF or Excel
AUTOMATIC DRAWINGS — NEW
• Calculators draw a dimensioned sketch of what you entered
• Brickwork, steel shapes, concrete sections, excavation, stairs
• Drawings and a DIMENSIONS panel included in every PDF
MATERIAL PRICE LIBRARY — NEW
• Store your own rates in your own currency
• Rates auto-fill into cost fields across the app
• Six regional presets with local materials and units
APPLE WATCH APP — NEW
• Converter, material weight, volume, diagonal and rebar on your wrist
• Prices synced from iPhone, with full calculation history
AREA & VOLUME
• 50+ shapes: rectangle, circle, triangle, trapezoid, polygons, prisms,
cones, spheres and more
• Draw Shape and GPS Area for irregular plots
• Room area, paint coverage, flooring and excavation volumes
UNIT CONVERTER
• Length, area, volume, weight, pressure, power, speed, density and more
• Construction-specific units throughout
LEARN — NEW
• Civil engineering articles, checklists and reference charts
• Topic quizzes with instant explanations
• Daily streaks, XP and achievement badges
PROFESSIONAL FEATURES
• Save and organise calculations by project, with notes and photos
• Share estimates with clients instantly
• Construction cost estimator with breakdown charts and quotations
• Company branding on every report
• Google Drive and iCloud backup, cloud sync across devices
• Metric and Imperial, 16 languages, light and dark themes
• Works offline — calculations need no internet
SUBSCRIPTION INFORMATION
Construction Calculator Pro is available as a monthly or yearly auto-renewing
subscription, or as a one-time Lifetime purchase.
• Payment is charged to your Apple ID account at confirmation of purchase.
• Subscriptions renew automatically unless auto-renew is turned off at least
24 hours before the end of the current period.
• Your account is charged for renewal within 24 hours prior to the end of the
current period, at the rate of your selected plan.
• Manage or cancel your subscription in your App Store account settings
after purchase.
Privacy Policy: https://www.binaryandbricks.com/app/privacypolicy.html
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Built for real job sites.
Download now and estimate like a pro.
Meet Ask A1, your AI site assistant (beta)
• Type or say what you need, like "concrete for a 12 x 10 ft slab, 5 inch thick", and get the answer from the app's own calculators.
• Photo of a sketch or floor plan? Ask A1 reads the sizes for you (Pro).
• Add answers to your BOQ, save them as notes, or share them as a PDF.
• Free AI credits every month: 5 on the free plan and 20 with Pro. Monthly and yearly plans add 100 more, and credit packs are there when you need extra.
New calculators
• Interior, PEB and steel sheds, external works, demolition and debris, waterproofing and roofing.
• Fire fighting and plumbing.
Better every day
• Search the whole app from the home screen: calculators, settings and study topics, even in site slang.
• Draw Shape now measures angles and lets you pan around large drawings.
• Daily Brick: one construction tip and a quick challenge every day.
• Cleaner calculator pages, and PDF export fixes.
Tell us how Ask A1 did: tap the thumbs-down on any answer to say what went wrong.
The developer, Binary And Bricks Pvt Ltd, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
Data Linked to You
The following data may be collected and linked to your identity:
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- BINARY AND BRICKS PRIVATE LIMITED
- Size
- 190.4 MB
- Category
- Productivity
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Pro access monthly subscription $2.99
- Lifetime Access $39.99
- 500 AI credits $9.99
- 500 AI credits $3.99
- 100 AI Credits $0.99
- Pro access yearly subscription $24.99
- Copyright
- © 2020 Binary And Bricks Pvt Ltd

