Embodied Carbon Calculator

Calculate A1-A3 embodied carbon (kgCO2e) for your building's structural and envelope materials — concrete, steel, timber, masonry, glass, and insulation.

Inputs

Concrete Volume (cubic yards)

Structural Steel (tons)

Mass Timber (board feet)

Masonry Wall Area (sq ft)

Glazing Area (sq ft)

Insulation Area (sq ft)

Insulation Type (0-3)

Tab to move between fields

Results

Total Embodied Carbon (kgCO2e)

61,462

Total (metric tons CO2e)61.5

Biogenic Carbon Stored (kgCO2e)0

Net Carbon (kgCO2e)61,462

Carbon Intensity (kgCO2e/kg)0.21

Tree Offset Equivalent70

How to Use This Calculator

Enter quantities of primary structural materials: Concrete Volume in cubic yards, Structural Steel in tons.
Enter Mass Timber volume in board feet, Masonry Wall Area, Glazing Area, and Insulation Area.
Select the Insulation Type (XPS, EPS, mineral wool, or cellulose) — cellulose has the lowest carbon.
Review Total Embodied Carbon in kgCO2e and metric tons for the A1–A3 life-cycle stages.
Check Biogenic Carbon Stored (timber credit) and Net Carbon to assess the overall material carbon footprint.

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