Every Calculation.
Every Trade.
One App.
80 professional-grade construction calculators across 10 trades — concrete, framing, roofing, electrical, plumbing, HVAC, and more. Built for the job site.
Why Professionals Choose It
Built around what contractors actually need on the job site.
80 Calculators, 10 Trades
Every trade in one app — concrete, earthwork, framing, roofing, electrical, plumbing, HVAC, finishing, estimating, and sitework. Stop switching between apps mid-job.
Visual Reports with Charts
Every calculation generates a detailed report with diagrams, material breakdowns, and quantity tables. Export as PDF or share with your team in one tap.
Fully Offline
No internet required for any calculation. All results save automatically to your on-device history. Works on the roof, underground, or anywhere with no signal.
Code-Referenced Calculations
Calculations cite the exact code section behind each result — ACI 318, NEC, IRC, IPC, ASHRAE, NFPA 54. Know your results are right before you submit the bid.
80 Calculators Across Every Trade
20 calculators are free forever. Upgrade to PRO for all 80.
Concrete & Masonry
Volume, Slab, Rebar, Blocks · 8 calculators
Earthwork & Grading
Cut & Fill, Trench, Slope · 8 calculators
Framing & Carpentry
Stud Wall, Floor Joist, Beam · 8 calculators
Roofing
Area, Pitch, Materials, Gutter · 8 calculators
Electrical
Wire Size, Load, Conduit, Panel · 8 calculators
Plumbing
Pipe Size, Flow Rate, Drainage · 8 calculators
HVAC
Heat Load, Duct Size, CFM · 8 calculators
Finishing & Interior
Paint, Flooring, Drywall, Tile · 8 calculators
Cost Estimation & PM
Material Cost, Labor, Markup · 8 calculators
Sitework & Landscape
Paving, Fencing, Grading, Mulch · 8 calculators
Report Tab
Every Calculation.
Explained.
Most calculator apps give you a number and leave you guessing. Construction Calculator Pro shows you the work.
Every result comes with a full Report tab — visual bar charts and diagrams (powered by MPAndroidChart), a material breakdown table, and the exact formulas used with your values substituted in.
A built-in Docs tab provides the code section reference, a plain-English explanation, and a worked example so you can verify the logic on any calculator.
- Visual bar charts and construction diagrams
- Itemized material quantities with units
- Formulas shown with your input values substituted
- Code reference (ACI, NEC, IRC, IPC, ASHRAE, NFPA)
Concrete Volume Calculator
Report Tab
Material Breakdown
Report Tab — Visual + Detailed
See It in Action
Tap any calculator, get results in seconds.
Concrete Volume — inputs, bag counts, waste factor
Simple, One-Time Pricing
No subscription. No recurring charges. Pay once, own it forever.
Free
- Concrete Volume Calculator
- Rebar Calculator
- Masonry Block Calculator
- Cut & Fill Calculator
- Trench Calculator
- Stud Wall Framing Calculator
- Floor Joist Calculator
- Stair Stringer Calculator
- Roof Area Calculator
- Shingle Calculator
- Roof Pitch Calculator
- Wire Size Calculator
- Circuit Breaker Calculator
- Pipe Size Calculator
- Drain Slope Calculator
- AC Size / BTU Calculator
- Paint Calculator
- Tile Calculator
- Drywall Calculator
- Material Markup Calculator
- Calculation history saved locally
- PDF and CSV export
- Works 100% offline
Includes banner and interstitial ads
Download FreePRO
Everything in Free, PLUS:
- All 60 PRO calculators unlocked
- All ads permanently removed
- Lifetime access — no subscription ever
- Restore purchase on any device
- Concrete Slab, Footing, Column (ACI 318)
- Excavation, Grading, Backfill, Haul
- Rafter, Deck, Beam Size, Plywood
- Metal Roof, Gutter, Truss, Ventilation
- Electrical Load, Conduit Fill, Voltage Drop
- Heat Load (Manual J), Duct Size, U-R Value
- Flooring, Insulation, Cabinets
- Bid, Labor Cost, Project Cost, Profit Margin
- Fence, Retaining Wall, Paving, Irrigation
- (and 35 more PRO calculators — 60 total)
Purchases managed securely by Google Play. Restore anytime.
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