John Telford 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 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 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 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
Overview Formula 01What this calculator estimates Spray foam insulation is priced by the square foot of surface area to be covered, multiplied by the thickness in inches to get the board feet of foam. This spray foam insulation cost calculator works out the board feet required for your project and then provides a realistic installed … Read more
Overview Formula 01What this calculator tells you This calculator answers the two questions everyone asks before buying a dining table. Switch it to “Size a table for my room” and it takes your room dimensions, shape and clearance preference and returns the largest table that fits — in inches and feet — with the number … Read more
Overview Formula 01What this calculator tells you This calculator turns the stages of an order into a single total lead time and a projected delivery date. Enter the day the order is placed, then how many days each stage takes — procurement (sourcing), production (making it) and shipping (delivery and receiving) — plus an optional … Read more
Overview Formula 01What this calculator tells you This stud calculator works out how many studs you need to frame a wall. Enter the wall length, pick your on-center spacing, choose how many studs sit at each corner, add any door or window openings and your wall height, and it returns the total stud count broken … Read more
Overview Formula 01What this calculator tells you Choosing a greener material almost always comes down to one trade-off: a low-carbon option may cost a little more, but it cuts the embodied carbon locked into your project. This calculator puts both sides of that trade-off in one place. Enter the quantity you need and, for each … Read more
