Overview Formula 01What this calculator tells you This calculator estimates a building’s annual operational carbon footprint — the greenhouse-gas emissions, in kilograms of CO₂ equivalent (kgCO₂e), that come from the energy used to heat, cool, light and power it every year. It then does what a bare tonnage cannot: it places your design side by … Read more

Overview Formula 01What this calculator estimates This calculator estimates the construction-phase carbon footprint of a project — the greenhouse-gas emissions from the activities on site, measured in kilograms of CO₂ equivalent (kgCO₂e). It covers the four sources that dominate most sites: plant and machinery diesel, temporary site electricity, transport of materials to site, and construction … Read more

Overview Formula 01What this calculator estimates Whole-life carbon is the complete carbon footprint of a building — everything from the emissions baked into its concrete and steel to the emissions from the energy it burns every year it is occupied. This calculator adds the two halves together: embodied carbon (the upfront A1–A5 emissions from materials … Read more

Overview Formula 01What this calculator tells you This calculator estimates the three numbers that decide whether a torsion spring fits your garage door: the spring’s rate in inch-pounds per turn (IPPT), the winding turns needed to raise the door, and the door weight the spring balances. Enter the spring’s wire size, inside diameter and length, … Read more

Overview Formula 01What this calculator tells you This calculator answers the one question every wall mount comes down to: how high off the floor should the TV go? Pick your room, enter the TV size and your seated eye height, and it returns the bottom-of-screen height you mark on the wall, plus the screen center, … Read more