Understand Your Carbon Footprint

🏠 Welcome
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⚡ Electricity
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🍽️ Food
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🚌 Land Travel
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✈️ Air Travel
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📊 Results

Small Choices, Collective Impact

Climate change can sometimes feel like a global challenge that is too big for any one person to influence. While governments, businesses, and industries all have an important role to play, our everyday choices also contribute to the emissions that shape our collective future.

From the electricity we use at home to the food we eat, the way we travel, and the flights we take, these activities all have a carbon footprint. CarbonLens turns these activities into simple estimates, insights, recommendations, and scenario planning tools.

Reducing emissions is not about being perfect. Small, realistic changes made consistently over time can contribute to meaningful reductions in your carbon footprint.

About CarbonLens

CarbonLens is a web-based carbon footprint calculator developed as part of our Master's in Sustainability project. It helps users measure emissions from everyday activities, compare their results with the Singapore average (per person), explore recommendations, and evaluate potential emissions reductions through scenario analysis.

📊 Measure Calculate your footprint across electricity, food, transport, and air travel.
🔍 Understand See which activities contribute most to your emissions.
🌱 Explore Use recommendations and scenario planning to identify practical actions.
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Screen 2 — Electricity
Questions about your household electricity usage
Q1: How many rooms does your household have?
Q2: What is your average monthly electricity consumption (kWh)?
kWh/month
🍽️
Screen 3 — Food
Estimate your monthly food consumption
Q3: Estimate your monthly consumption for each food type below.
Leave blank or enter 0 if you don't consume a food type.
🚌
Screen 4 — Land Travel
Your weekly travel by transport mode
Q4: Estimate your weekly distance travelled for each transport type.
Leave blank or enter 0 if you do not use a transport type.
km/week
km/week
km/week
km/week
km/week
km/week
✈️
Screen 5 — Air Travel
Flights taken or planned this year
Q5: What flight trips have you taken or are planning to take this year?
Select the city first, then choose the airport. All flights are assumed to be return trips.
Trip Departure City Departure Airport Destination City Destination Airport Class
Your Estimated Annual Carbon Footprint
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kg CO₂e / year
How Do You Compare?
See how your estimated footprint compares with the Singapore Average (per person).
Singapore Average (per person)
9,245 kg CO₂e/year
Compared with average
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Coverage note: CarbonLens estimates emissions from electricity use, food consumption, land travel, and air travel. It does not currently include emissions from online shopping and deliveries, clothing and electronics purchases, household items and appliances, water consumption, healthcare, pets, or other goods and services used in daily life. As a result, the estimate should be viewed as an indication of your carbon footprint rather than a complete assessment.
Recommendations
Emissions by Category
Electricity · Food · Land Travel · Air Travel
Food Emissions Breakdown
By food type
Land Travel Breakdown
By transport mode
Air Travel Breakdown
By flight route
Scenario Planner
Adjust the sliders for your top emissions sources to explore how targeted changes could reduce your annual footprint.
Estimated annual savings
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Move the sliders to see your projected footprint.