Introduction
Every person on Earth uses land, water, and energy to live. Your ecological footprint measures how much of the planet's resources you use each year. It is shown in global hectares (gha) — a unit that combines all the land and sea needed to support your lifestyle and absorb the carbon you produce.
Right now, the Earth can provide about 1.7 gha per person each year. If your footprint is higher than that, you are using more than your fair share. This calculator looks at three parts of your life — housing, travel, and consumption — to estimate your total ecological footprint and your carbon footprint in tonnes of CO₂. If you want a focused look at greenhouse-gas emissions alone, try our dedicated carbon footprint calculator.
Answer the questions below about your home energy, driving, flights, diet, and shopping habits. The calculator will show you how many Earths we would need if everyone lived like you, your personal Earth Overshoot Day, and clear steps you can take to shrink your impact. No sign-up is needed, and your data stays in your browser.
How to Use Our Ecological Footprint Calculator
Enter details about your home, travel, and daily habits below. The calculator will estimate your ecological footprint in global hectares, show how many Earths we would need if everyone lived like you, and give you tips to lower your impact.
Measurement Units: Pick Imperial if you use miles and square feet. Pick Metric if you use kilometers and square meters.
Country of Residence: Select the country where you live. This sets the carbon intensity of your electricity grid and your national average footprint.
People in Household: Enter the total number of people living in your home. Your home energy use is split evenly among all members.
Home Size: Enter the total area of your home in square feet or square meters. Bigger homes use more energy for heating and cooling. If you need help converting room dimensions into total area, our square footage calculator can help.
Home Type: Choose the type of home you live in, such as apartment, townhouse, small house, or large house.
Primary Heating Source: Select the main fuel or system you use to heat your home, like natural gas, electricity, oil, or a heat pump. If you are curious how much heat your home loses through walls and windows, check our heat loss calculator.
Electricity Input Method: Choose whether you want to type in your monthly electricity use in kWh or estimate it from your monthly bill amount.
Monthly Electricity (kWh): If you chose kWh mode, enter how many kilowatt-hours your home uses each month. You can find this on your utility bill. To see how your usage translates into dollars, try our electricity cost calculator.
Monthly Bill and Price per kWh: If you chose bill mode, enter your monthly electricity bill and the price you pay per kWh. The calculator will estimate your usage from these two numbers.
Renewable Electricity (%): Use the slider or type a number to show what percent of your electricity comes from solar panels or a green energy plan. Our solar panel calculator can help you estimate how much solar energy your roof could generate.
Personal Vehicle Type: Select the kind of vehicle you drive most often. Choose "None" if you do not drive.
Driving per Week: Use the slider or type how far you drive each week in miles or kilometers. If you track your trips by fuel used rather than distance, our gas mileage calculator can convert fill-ups into miles driven.
EV Charged with Renewable Energy: Check this box if you drive an electric vehicle and charge it with solar or other renewable power.
Short-Haul Flights per Year: Enter how many flights under 3 hours you take each year. You can use our flight time calculator to check whether a route counts as short-haul or long-haul.
Long-Haul Flights per Year: Enter how many flights of 3 hours or more you take each year.
Flight Class: Select whether you usually fly in economy, business, or first class. Higher classes use more space on the plane and have a larger footprint.
Bus Usage: Choose how often you ride the bus, from never to always.
Rail / Metro Usage: Choose how often you ride a subway or city rail line.
Long-Distance Train: Choose how often you take trains between cities.
Cycling / Walking: Choose how often you bike or walk instead of driving. More active travel lowers your car emissions. If you cycle regularly, our bike gear ratio calculator can help you optimize your ride.
Diet Type: Pick the diet that best matches what you eat, from meat-heavy to vegan. Diets with less meat have a smaller footprint. If you want to understand the nutritional side of changing your diet, our calorie calculator and macro calculator can help you plan balanced meals.
Food Waste Level: Select how much food you throw away — very little, some, or a lot.
Locally Sourced Food: Choose how often your food comes from local farms. Local food travels less distance to reach you.
Clothing Purchases: Select how often you buy new clothes each year.
Electronics Purchases: Select how often you buy or upgrade phones, laptops, and other devices.
Goods & Services Spending: Pick the level that best matches your overall spending on products and services. If you want to understand where your money goes each month, our budget calculator can help you track expenses.
Recycling Habits: Check each box for the materials you recycle or compost at home. More recycling means less waste and a smaller footprint. If you are thinking about starting a home compost bin, our compost calculator can help you get the right mix of materials.
When you are done, press Calculate to see your results. Press Reset to clear all fields and start over.
What Is an Ecological Footprint?
Your ecological footprint measures how much of the Earth's land and resources you use each year. It is counted in global hectares (gha) — a standard unit that represents one hectare of land with average ability to grow resources and absorb waste. The more energy, food, and goods you use, the bigger your footprint gets.
The Earth has about 1.7 gha per person available. If your footprint is higher than that, you are using more than your fair share. When we add up everyone's footprint, we can see how many Earths we would need if the whole world lived the same way.
What Makes Up Your Footprint?
Your ecological footprint comes from three main areas:
- Housing: The electricity, heating fuel, and space your home uses. Bigger homes and fossil-fuel energy make this number go up. Renewable energy and sharing a home with others bring it down. Improving your home's insulation and right-sizing your BTU needs are two of the fastest ways to cut housing emissions.
- Travel: How you get around — by car, bus, train, or plane. Driving a gas car and flying often add the most. Walking, biking, and public transit add very little. Use our fuel cost calculator to see how much your driving costs in both dollars and emissions.
- Diet and Consumption: The food you eat and the things you buy. Meat-heavy diets and frequent shopping raise your footprint. Plant-based meals, recycling, and buying less lower it.
What Is Earth Overshoot Day?
Earth Overshoot Day is the date when humanity has used up all the resources the planet can renew in one year. Your personal overshoot day shows when you would use up your own share. The earlier the date, the more you are overshooting. If your lifestyle fits within one Earth, you have no overshoot day at all.
Why Does This Matter?
Right now, humans use resources faster than the Earth can replace them. This leads to deforestation, ocean damage, climate change, and loss of wildlife. Knowing your ecological footprint helps you see where your impact is biggest so you can make simple changes — like using green energy, eating less meat, or flying less — that make a real difference. For a deeper dive into the greenhouse-gas side of your impact, pair this tool with our carbon footprint calculator to get a complete picture of your environmental impact.