Digital carbon tools
Carbon Calculators
Understand the environmental impact of your digital activity and your everyday life. Select a calculator below to measure emissions and identify where to reduce your footprint.
Website Carbon Calculator
Measure the CO2-e emissions generated every time someone visits your website. Enter a URL to analyse page weight, green hosting status, and your site's annual carbon footprint: broken down by data centre, network, and end-user device.
Email Footprint Calculator
How much CO2-e does your inbox generate? Enter your email habits, sent, received, and stored, to calculate your annual email carbon footprint and discover what small changes can achieve.
Digital Devices & Services
Build your digital profile by selecting the devices and services you use. See your total annual carbon footprint and how manufacturing vs energy use compares, with a breakdown by item.
Personal Carbon Footprint
Answer 13 questions about your food, travel, home energy, shopping, and waste habits to build your personal carbon profile, with a breakdown by category and your biggest sources.
Use the calculators in your own software
All four calculators are available as an API: send a request, get the result back as data. It uses the same figures as this website, so the numbers always match.