BlockCalc is the professional-grade masonry estimation tool built for contractors, builders, engineers, and DIY enthusiasts. Get precise block counts, mortar estimates, rebar calculations, and comprehensive cost breakdowns — all in one fast, lightweight app.
★ PRECISION CALCULATOR
Enter your wall dimensions, select a block type, and instantly see total blocks needed, mortar bag estimates, rebar linear footage, and square footage. All calculations include an industry-standard 5% waste factor per ASTM C90 standards.
★ COMPREHENSIVE BLOCK LIBRARY
Browse our catalog of masonry units across 4 categories:
• CMU (Concrete Masonry Units) — Standard, Half, Bond Beam, Lintel, Pilaster
• Brick — Modular, Queen, King, Utility, Roman
• Stone — Fieldstone, Limestone, Flagstone, Bluestone
• Specialized — Split Face, Slump Block, Glass Block, Interlocking, Insulated CMU
Each block includes detailed specifications: weight, dimensions, compressive strength, water absorption rate, fire rating, thermal R-value, mortar joint size, and pallet quantity.
★ SMART PROJECT MANAGEMENT
Organize your work with auto-saved projects. Every calculation automatically creates a project entry with a descriptive name. Track multiple walls, mark projects as active/completed/archived, and view aggregate statistics across all calculations.
★ DETAILED COST BREAKDOWN
Get a full cost analysis including:
• Material costs (blocks at per-unit pricing)
• Mortar costs (80 lb bag estimates)
• Rebar costs (linear footage pricing)
• Labor costs (configurable hourly rate)
• 10% contingency buffer
• Total project cost
★ PROJECT ESTIMATOR
Use the full-screen estimator for comprehensive multi-wall projects. Generate professional PDF reports with detailed breakdowns for client presentations and project bids.
★ UNIT CONVERTER
Built-in unit converter for common construction measurements:
• Feet ↔ Meters
• Inches ↔ Centimeters
• Pounds ↔ Kilograms
★ CUSTOMIZABLE SETTINGS
• Adjustable waste factor (1–15%)
• Imperial or Metric unit system
• Configurable labor rate
• Adjustable contingency percentage
★ DESIGNED FOR PROFESSIONALS
• Clean, modern interface with intuitive navigation
• Real-time live output as you type
• Offline-ready — no internet connection needed
• Lightweight and fast on any Android device
• Dark-themed results panels for reduced eye strain on-site
Whether you're estimating a backyard retaining wall or bidding on a commercial masonry project, BlockCalc delivers the accuracy and speed you need.
Download BlockCalc today — Build with Absolute Intent.