CO₂ Calculators
Explore calculators to understand emissions from travel, energy use, food, manufactured products, vehicles, and appliances.
Travel Carbon Calculator
Flights, car (gas/EV), train, bus — add segments and compare.
Home Energy Carbon Calculator
Convert kWh and gas use to CO₂e with your grid intensity.
Food CO₂ Calculator
Build a meal plan and compare foods by serving and EF.
Product Carbon Footprint
Materials, manufacturing energy, transport, end-of-life.
EV vs Gas — Emissions & Cost
Annual CO₂e and $ for EV vs gas; 5-year totals.
Appliance Energy & CO₂
Per-device and total yearly kWh, $, and CO₂e.