Free tool

Travel Emissions Calculator

Estimate the carbon footprint of your flights, driving, and public transit in tonnes of CO₂e per year. Measurement follows the GHG Protocol and uses factors published by UK DEFRA / BEIS and the US EPA (2023).

Figures are estimates for personal planning and offsetting — not a replacement for audited corporate reporting.

Estimate — not a compliance tool

Flights

Count each one-way trip once. A round-trip is two trips.

Short-haul (< 1,500 km)

trips / yr

e.g. London–Paris, NYC–BostonLong-haul (1,500 – 8,000 km)

trips / yr

e.g. London–Cairo, LA–NYCUltra-long-haul (> 8,000 km)

trips / yr

e.g. London–Sydney, NYC–Tokyo

Driving

Annual miles for the vehicle you drive most.

Vehicle typeMiles per year

miles / yr

Average US driver: ~13,500 mi/yr

Public transit & rail

Optional — passenger-miles per year.

Bus / commuter train

miles / yr

Daily bus commute + intercity busesDedicated rail (intercity / high-speed)

miles / yr

Lower per-mile than mixed transit average

Based on GHG Protocol methodology. Factors sourced from UK DEFRA / BEIS and US EPA (2023 updates). For business-scale emissions accounting, use our business calculator.