Tools in This Collection
Home Carbon Footprint Calculator
Measure total household emissions across energy, transport, food, and consumption
EV vs Gas Car Emissions Calculator
Compare annual CO2 output between electric and gas vehicles
Food Miles Calculator
Calculate the transport emissions of your food choices
Tree Planting Offset Calculator
See how many trees it takes to offset your carbon footprint
Meat vs Plant Emissions Calculator
Compare CO2 impact of meat-heavy vs plant-based diets
Commute Emissions Calculator
Calculate annual CO2 from your daily commute by mode
Guides & Articles
Carbon Footprint Tracking Workflow
The average American emits 16 tons of CO2 per year — four times the global average of 4 tons needed to stay within 1.5°C warming targets. These tools help you measure each major emissions source and identify where reductions have the most impact.
Calculate Your Home Carbon Footprint
The Home Carbon Footprint Calculator covers all four major categories: home energy (electricity and gas), transportation, food choices, and consumption. Most households find transportation and diet are the two highest-impact areas — each can account for 30-40% of total emissions. Use it to establish a baseline, then track progress as you make changes.
Transportation Emissions
A typical gas car produces about 12,000 lbs (5.5 metric tons) of CO2 per year. A typical EV produces about 3,000 lbs (1.4 metric tons) — primarily from electricity generation — and this figure drops further as the grid becomes cleaner. The EV vs Gas Emissions Calculator computes exact figures for your driving distance and local grid mix.
The Commute Emissions Calculator shows the annual CO2 impact of your daily commute across modes — driving solo, carpooling, public transit, or biking.
Food and Diet Emissions
Local produce travels under 100 miles. Imported produce travels 1,500+ miles. But transportation accounts for only about 11% of food emissions — what you eat matters far more than where it comes from. Beef produces 27 kg CO2e per kg of food; chicken produces 3.5 kg. The Food Miles Calculator covers transport impact, while the Meat vs Plant Emissions Calculator compares diet choices directly.
Offset and Tree Planting
One mature tree absorbs about 48 lbs (22 kg) of CO2 per year. Offsetting an average American footprint through tree planting alone would require roughly 700 trees — a meaningful reminder that direct reduction is more effective than offsets. The Tree Planting Offset Calculator shows exactly how many trees would offset specific emission amounts.
Frequently Asked Questions
What is the most effective way to reduce my carbon footprint?
The highest-impact changes are: eliminating or reducing flying, switching to an EV or reducing driving, eating less beef and dairy, and switching to a green electricity provider. Each action can save 0.5-2+ metric tons of CO2 per year. Small actions like reusable bags save under 10 kg per year — they matter for habits but have minimal direct impact.
Do food miles matter as much as what I eat?
No. Transportation accounts for only about 11% of food's total lifecycle emissions — what you eat matters far more than where it came from. Locally grown beef still produces far more emissions than imported lentils. The Food Miles Calculator covers transport impact, but the Meat vs Plant Emissions Calculator shows the much larger diet-type difference.
How many trees would offset my annual carbon footprint?
A mature tree absorbs about 48 lbs (22 kg) of CO2 per year. The average American emits 16 metric tons, which would require roughly 700 trees to offset. The Tree Planting Offset Calculator shows how many trees correspond to any specific emission amount — a useful reminder that direct reductions are more practical than tree-based offsets for large footprints.