Carbon footprint, intensity, and net zero pathway calculators. Browse our free carbon tools below — all calculators are instant, accurate, and require no sign-up.
Business Carbon Footprint Calculator — Estimate your company's total carbon footprint across Scope 1, 2, and 3 emissions. Enter direct, energy, and supply chain data to see total CO2 in tonnes per year.
Carbon Intensity Calculator — Calculate your carbon intensity ratio by dividing total CO2 emissions by revenue or output. Track efficiency improvements over time with this key sustainability metric.
Carbon per Dollar Revenue Calculator — Calculate your CO2 emissions per dollar of revenue. Enter total emissions and annual revenue to benchmark your carbon efficiency against industry peers.
Carbon per Employee Calculator — Calculate CO2 emissions per employee to benchmark your workforce carbon efficiency. Enter total emissions and headcount to see per-capita corporate emissions.
Carbon Tax Estimator Calculator — Estimate your carbon tax liability based on total CO2 emissions and the tax rate per tonne. Compare costs under different carbon pricing scenarios.
Concrete Carbon Calculator — Calculate CO2 emissions from concrete production. Enter volume in cubic meters and optional mix adjustments to estimate the carbon footprint of your concrete pour.
Diet Carbon Footprint Calculator — Estimate the carbon footprint of your diet based on weekly food consumption. Enter servings of meat, dairy, grains, and vegetables to see your annual food CO2 emissions.
Embodied Carbon in Materials Calculator — Calculate the embodied carbon of building materials. Enter quantities of concrete, steel, timber, glass, and aluminum to estimate total CO2 from material production.
Home Energy Carbon Calculator — Calculate CO2 emissions from your home energy use. Enter electricity kWh and natural gas therms to estimate annual carbon emissions from household energy consumption.
Household Carbon Footprint Calculator — Estimate your household's total annual carbon footprint from energy, transport, waste, and food. Enter usage data to see your CO2 emissions in tonnes per year.
Individual Carbon Footprint Calculator — Calculate your personal carbon footprint by dividing household emissions among occupants and adding individual travel and consumption. See your per-person CO2 in tonnes.
Lifecycle Assessment Simplified Calculator — Estimate total lifecycle CO2 across five stages: raw materials, manufacturing, transportation, use phase, and end of life. A simplified LCA for products and buildings.
SBTi Target Calculator — Calculate your Science Based Target using the SBTi absolute contraction approach. Enter base-year emissions and target year to see the required annual CO2 reduction.
Net Zero Pathway Calculator — Plan your path to net zero emissions. Enter current CO2, target year, and base year to calculate the annual reduction needed to reach net zero on schedule.
Steel Carbon Calculator — Calculate CO2 emissions from steel production. Enter tonnes of steel and select production method to estimate embodied carbon from structural and reinforcing steel.