Updated Oct 25, 2025 · v251025
Creating a Bill of Quantities (RAB) and Estimating Civil Construction Costs
A must-have app for construction professionals, contractors, architects, and homeowners! Calculate building material requirements and cost estimates (RAB) quickly and accurately right from your smartphone. The Calculate Building app is an integrated solution to simplify the process of calculating materials and budgeting for construction projects. Designed with an intuitive and easy-to-use interface, simply enter the numbers to be calculated. This app can be used both online and offline, enabling users, both beginners and professionals—contractors, construction supervisors, government officials, builders, foremen, civil engineers, architects, civil engineering students, and homeowners planning construction or renovations—to efficiently estimate material quantities and project costs based on the Indonesian National Standard (SNI) or relevant regulations. Key Features: Comprehensive Material Calculator: Concrete: Calculate concrete volume requirements (cement, sand, aggregate, water) for slabs, columns, beams, retaining walls, foundations (foot plates), and water tanks. Walls: Calculate the number of bricks or blocks (batako) required for various wall types (straight, curved, circular) based on the entered dimensions. Plastering: Calculate cement and sand requirements for plastering walls. Flooring & Ceramics: Calculate tile/ceramic requirements for floors or walls. Steel/Iron: Estimate reinforcing steel requirements (weight and quantity) for RCC slabs or other structural elements. Painting: Calculate the volume of paint required for wall painting. Simple Cost Budget Plan (RAB): Input local/current material and labor prices. Generate a total cost estimate (RAB) report for the project. Option to adjust prices based on project location. Unit Conversion: Quick and easy unit converter feature for various units commonly used in construction (length, area, volume, weight, etc.). Mini Project Management: Save and manage calculation data for multiple projects. Export calculation reports and RABs (e.g., in PDF or Excel format). Offline Access: Most calculation features can be used without an internet connection. Benefits: Accuracy: Reduces manual calculation errors. Time Efficiency: Get calculation results in seconds. Cost Control: Helps control budgets with more accurate RAB estimates.
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