Two live calculators: grey structure and full material takeoff, built to give architects, engineers, students and homeowners a fast, transparent, design-stage read on embodied carbon before decisions are locked in.
This platform is an initiative by Brainotech IT Solutions, a Global Managed IT Services provider delivering enterprise-grade technology services to organisations across complex, multi-country environments, with core services spanning Global Field Engineering, Network Infrastructure & Wireless, Unified Communications, and Cloud & Cybersecurity. Brainotech has a presence across Europe, North America, the Middle East and APAC, including an office in Bahria Town, Lahore, Pakistan.
This carbon calculator is one of Brainotech's public-interest initiatives for the Pakistani architecture and construction community, giving students, practitioners and homeowners a simple, transparent way to estimate embodied carbon at the design stage. Learn more about Brainotech IT Solutions at brainotechs.com.
The platform is free to use, but every visitor is asked to register once with their name and email before unlocking the calculators below. This helps us understand who's using the tool and keep a running count of measurements taken, nothing here is sold or shared.
Please register above with your name and email to unlock the grey structure and materials carbon calculators.
Enter your covered area in square feet or Marla and get a generic estimate of grey-structure materials: cement, steel, sand, crush and bricks — plus the associated embodied carbon. Grey structure only: foundation, RCC frame and structural brickwork up to plaster-ready stage. Finishing items are covered separately in the materials calculator below.
Generic quantity rates per sq ft of covered area for a typical RCC-frame grey structure in Pakistan. Residential and commercial rates differ because high-rise commercial structures carry heavier slab loads, deeper foundations, larger columns and more reinforcement per sq ft than a low-rise house.
| Material | Unit | Residential rate /sqft | Commercial rate /sqft | Rate used | Total quantity | Carbon factor | Total carbon (kg CO₂e) |
|---|---|---|---|---|---|---|---|
| Totals | 0 |
How embodied carbon is distributed across grey-structure materials, and how residential and commercial rates compare for the same covered area.
A plain-language summary of the current grey-structure estimate, generated from the values above.
This is the full materials calculator. It turns a detailed material takeoff into an embodied-carbon report in real time, finishing materials are listed first in the index below, followed by structure, envelope and every other category. Type quantities and watch total carbon, water, energy and hotspots update as you build.
The material table is the core of the platform. Search, filter by category, and type a quantity directly into any row — carbon, water and energy totals update live, and the row is highlighted the moment it holds a quantity.
| #▾ | Category▾ | Material▾ | Unit | Qty (type here) | South Asia kg CO₂e/unit▾ | International kg CO₂e/unit▾ | Selected carbon factor | Water L/unit | Energy MJ/unit | Row Carbon Total▾ | Row Water Total | Row Energy Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TOTALS | 0 | 0 | 0 | |||||||||
A material-level and category-level breakdown of every quantity you've entered, generated live from the table above.
Ranked by absolute contribution to total embodied carbon — review these first when looking for reduction opportunities.
The same entered quantities, priced against both calculation bases — useful for sensitivity-checking a design-stage estimate.
A design-stage decision-support summary assembled automatically from your project data.
Every figure on this page is built from the same three-step calculation, run live for every row in the material index.
Type how much of a material your design uses — kilograms of cement, cubic metres of concrete, square metres of glazing, or any of the other units in the index.
Each material carries a South Asian and an international kg CO₂e-per-unit factor, drawn from ICE, ICMD and regional LCA studies. The calculator multiplies your quantity by whichever basis you've selected.
Every row's carbon, water and energy total is added together in real time to produce the project's total embodied carbon, intensity per m², and hotspot ranking.
This prototype uses a transparent benchmark-index approach covering materials spanning cement & concrete, masonry, earthwork/aggregate, structural metals, timber & engineered boards, glass, finishes & flooring, boards & ceilings, insulation, façade & roofing, plumbing & sanitary, electrical, HVAC & mechanical, external works, and admixtures & chemicals — enough breadth for both residential (house) and commercial building projects. South Asian values are intended as design-stage regional proxies, while international values are benchmark coefficients. Manufacturer-specific EPDs should replace generic values whenever available.
Carbon: Quantity × selected embodied-carbon factor, calculated live for every row as you type. For the supplied ranges, the calculator uses the midpoint as the benchmark factor while preserving the original range in the reference documentation.
Water: Quantity × an embodied/manufacturing-water benchmark (L/unit), modelled from category-level water-to-carbon intensity ratios drawn from typical construction-material patterns. It represents production-stage water use, not the building's operational/potable water demand. Energy: Quantity × an embodied-energy benchmark (MJ/unit), modelled the same way from category-level energy-to-carbon ratios.
Material-level factors vary with manufacturing technology, recycled content, electricity mix, transport, specification and system boundary. Water should not be interpreted as a universal global water-scarcity impact unless the source explicitly reports a water-scarcity method.
Sources to validate against: ICE Database, India Construction Materials Database (ICMD), manufacturer Environmental Product Declarations (EPDs), and Pakistan-specific peer-reviewed LCA studies. The water and energy benchmarks in particular are indicative and should be replaced by product-specific EPD data before use in procurement-grade reporting.