Free carbon footprint calculator. Estimate your personal CO₂ emissions from transportation, home energy, diet, and shopping. Compare to averages and get reduction tips.
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Understanding your carbon footprint is the first step toward living more sustainably. Our carbon footprint calculator estimates your annual CO₂ emissions from transportation, home energy use, diet, and consumption habits. The average American produces about 16 tonnes of CO₂ per year—roughly 4x the global average. Find out where you stand and discover actionable ways to reduce your environmental impact.
A carbon footprint measures the total greenhouse gas emissions caused by an individual, organization, event, or product, expressed as carbon dioxide equivalent (CO₂e). For individuals, the main contributors are transportation (especially cars and flights), home energy consumption, food choices, and consumer goods. Understanding your footprint helps identify the biggest opportunities for reduction.
Carbon Footprint Formula
Total CO₂ = Transport + Flights + Home Energy + Diet + ShoppingYou can't reduce what you don't measure. Understanding your baseline emissions reveals where the biggest impacts are.
A single transatlantic flight can equal a year of driving. Our calculator shows which changes have the most impact.
Recalculate periodically to see how lifestyle changes affect your footprint over time.
If you want to purchase carbon offsets, knowing your actual footprint ensures you offset the right amount.
People committed to reducing their environmental impact and living sustainably.
Households looking to reduce energy costs while teaching children about environmental responsibility.
Professionals curious how working from home affects their carbon footprint compared to commuting.
Frequent flyers who want to understand and offset the carbon impact of their travel.
The average American produces about 16 tonnes of CO₂ per year, one of the highest in the world. The global average is only 4.7 tonnes. Major contributors include transportation (29%), electricity (25%), industry (23%), and agriculture (10%). Individual footprints vary widely based on lifestyle.