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Your trip's
climate impact.

Enter your travel details to estimate the emissions of your trip. All sections are optional—include only what applies.

BEGIN
airplane in sky with clouds
SECTION 1 OF 5

Air travel

Enter total hours (gate to gate) for all flight legs.
How we calculate this Each hour of passenger air travel produces about 46 kg of CO₂e. Derived from EPA GHG Emission Factors Hub × BTS T-100 fleet-average block speed (2023 data).

0hrs
025 hrs50 hrs

✈️ Reference (one way): NYC–LA ≈ 5.75 hrs · Chicago–DC ≈ 2 hrs · Dallas–LA ≈ 3.5 hrs · Denver–Seattle ≈ 3 hrs · Minneapolis–Atlanta ≈ 2.5 hrs · Atlanta–Orlando ≈ 1.5 hrs

three cars
SECTION 2 OF 5

Vehicle travel

Include rental cars, personal vehicle, rideshare, and taxi miles for this trip.
Vehicle emission factors Tailpipe combustion factors from EPA GHG Emission Factors Hub. EV emissions use 0.35 kWh/mi (DOE average) × your local eGRID grid intensity.

Enter a ZIP code for location-based EV accuracy; otherwise the US national average grid is used.

⛽ Gasoline vehicle

0mi
01,0002,000
25mpg
10 mpg35 mpg60 mpg

🚗 Rental cars: compact 32–38 mpg · midsize 28–32 mpg · SUV 20–26 mpg · truck 16–22 mpg

🛻 Diesel vehicle

0mi
01,0002,000
28mpg
10 mpg30 mpg50 mpg

⚡ Electric vehicle

0mi
01,0002,000
Train
SECTION 3 OF 5

Intercity rail (U.S.-based)

Select the route type that best describes your journey and enter total trip distance in miles.
Rail emission factors (EPA 2025 Table 10) On average, U.S. rail produces about 0.096 kg of CO₂e/mile.

Route type

Using 0.096 kg CO₂e per passenger-mile (national average)

0mi
01,0002,000

🚆 Common routes: NYC–DC ≈ 225 mi · NYC–Boston ≈ 215 mi · Chicago–Milwaukee ≈ 85 mi · Chicago–St. Louis ≈ 300 mi · LA–San Diego ≈ 120 mi · Chicago–Detroit ≈ 280 mi

three buses
SECTION 4 OF 5

Intercity bus (U.S.-based)

For Greyhound, Flixbus, Megabus, or similar motorcoach trips. Enter route distance in miles.
Bus emission factor EPA GHG Emission Factors Hub 2025, Table 10 (motorcoach/highway vehicle data). Intercity buses produce about 0.066 kg of greenhouse-gas emissions per passenger-mile.

0mi
07501,500

🚌 Common routes: NYC–Philadelphia ≈ 95 mi · DC–NYC ≈ 225 mi · Boston–NYC ≈ 215 mi · Chicago–Indianapolis ≈ 180 mi · DC–Richmond ≈ 100 mi

hotel lobby
SECTION 5 OF 5

Lodging

Hotel emissions are driven by local electricity grid intensity and hotel class. Select where you stayed, the hotel type, and number of nights.
Hotel emission factors Hotel emissions estimates come from the Cornell Hotel Sustainability Benchmarking Index (CHSB 2025, data year 2023), covering U.S. states and 61 countries.

Hotel Type
0nights
01530
🍽️

Food emissions are not calculated due to high overall uncertainty (≈±30%) and smaller impact than major travel sources. If desired, you can add ~3–5 kg CO₂e/day (omnivore) or ~1.5–2 kg/day (plant-based).