CirCO₂

Every flight counts. Let's measure them together.

CirCO₂ calculates the real emissions of your business trips from actual fuel consumption, not a rough average.

Logged in three steps, even at the airport
Personal and collective dashboards
Carbon budget and plane / train comparator

Jet A-1 emission factor: fuel (t) × 3.16 — combustion CO2 only.

Welcome to CirCO₂

Employees sign in with their Google Workspace account @circeo.earth.

Not part of Circeo?

Explore the app as a guest with a sample flight history. Company figures stay real, your own profile is a sandbox, and anything you log is deleted after 24 hours.

On first sign-in, your profile (name, email, photo) is created automatically from your Google account, and you choose whether your individual figures can be published internally.